AugMix in PyTorch (6)

Buy Me a Coffee

*Memos:

• My post explains AugMix() about no arguments and full argument.
• My post explains AugMix() about severity argument (1).
• My post explains AugMix() about severity argument (2).
• My post explains AugMix() about severity argument (3).
• My post explains AugMix() about mixture_width argument (1).
• My post explains AugMix() about mixture_width argument (3).
• My post explains AugMix() about chain_depth argument (1).

AugMix() can randomly do AugMix to an image as shown below. *It’s about mixture_width argument (2):

<span>from</span> <span>torchvision.datasets</span> <span>import</span> <span>OxfordIIITPet</span>
<span>from</span> <span>torchvision.transforms.v2</span> <span>import</span> <span>AugMix</span>
<span>from</span> <span>torchvision.transforms.functional</span> <span>import</span> <span>InterpolationMode</span>
<span>origin_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>None</span>
<span>)</span>
<span>s10mw0_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span> <span># `s` is severity and `mw` is mixture_width. </span>    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>0</span><span>)</span>
<span>)</span>
<span>s10mw1_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>1</span><span>)</span>
<span>)</span>
<span>s10mw2_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>2</span><span>)</span>
<span>)</span>
<span>s10mw5_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>5</span><span>)</span>
<span>)</span>
<span>s10mw10_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>10</span><span>)</span>
<span>)</span>
<span>s10mw25_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>25</span><span>)</span>
<span>)</span>
<span>s10mw50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>50</span><span>)</span>
<span>)</span>
<span>mw0cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span> <span># `cd` is chain_depth. </span>    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>0</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>
<span>mw1cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>1</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>
<span>mw2cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>2</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>
<span>mw5cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>5</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>
<span>mw10cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>10</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>
<span>mw25cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>25</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>
<span>mw50cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>50</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>
<span>import</span> <span>matplotlib.pyplot</span> <span>as</span> <span>plt</span>
<span>def</span> <span>show_images1</span><span>(</span><span>data</span><span>,</span> <span>main_title</span><span>=</span><span>None</span><span>):</span>
    <span>plt</span><span>.</span><span>figure</span><span>(</span><span>figsize</span><span>=</span><span>[</span><span>10</span><span>,</span> <span>5</span><span>])</span>
    <span>plt</span><span>.</span><span>suptitle</span><span>(</span><span>t</span><span>=</span><span>main_title</span><span>,</span> <span>y</span><span>=</span><span>0.8</span><span>,</span> <span>fontsize</span><span>=</span><span>14</span><span>)</span>
    <span>for</span> <span>i</span><span>,</span> <span>(</span><span>im</span><span>,</span> <span>_</span><span>)</span> <span>in</span> <span>zip</span><span>(</span><span>range</span><span>(</span><span>1</span><span>,</span> <span>6</span><span>),</span> <span>data</span><span>):</span>
        <span>plt</span><span>.</span><span>subplot</span><span>(</span><span>1</span><span>,</span> <span>5</span><span>,</span> <span>i</span><span>)</span>
        <span>plt</span><span>.</span><span>imshow</span><span>(</span><span>X</span><span>=</span><span>im</span><span>)</span>
        <span>plt</span><span>.</span><span>xticks</span><span>(</span><span>ticks</span><span>=</span><span>[])</span>
        <span>plt</span><span>.</span><span>yticks</span><span>(</span><span>ticks</span><span>=</span><span>[])</span>
    <span>plt</span><span>.</span><span>tight_layout</span><span>()</span>
    <span>plt</span><span>.</span><span>show</span><span>()</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>origin_data</span><span>"</span><span>)</span>
<span>print</span><span>()</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw0_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw0_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw1_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw1_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw2_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw2_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw5_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw5_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw10_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw10_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw25_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw25_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw50_data</span><span>"</span><span>)</span>
<span>print</span><span>()</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw0cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw0cd50_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw1cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw1cd50_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw2cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw2cd50_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw5cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw5cd50_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw10cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw10cd50_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw25cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw25cd50_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw50cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw50cd50_data</span><span>"</span><span>)</span>
<span># ↓ ↓ ↓ ↓ ↓ ↓ The code below is identical to the code above. ↓ ↓ ↓ ↓ ↓ ↓ </span><span>def</span> <span>show_images2</span><span>(</span><span>data</span><span>,</span> <span>main_title</span><span>=</span><span>None</span><span>,</span> <span>s</span><span>=</span><span>3</span><span>,</span> <span>mw</span><span>=</span><span>3</span><span>,</span> <span>cd</span><span>=-</span><span>1</span><span>,</span> <span>a</span><span>=</span><span>1.0</span><span>,</span>
                 <span>ao</span><span>=</span><span>True</span><span>,</span> <span>ip</span><span>=</span><span>InterpolationMode</span><span>.</span><span>BILINEAR</span><span>,</span> <span>f</span><span>=</span><span>None</span><span>):</span>
    <span>plt</span><span>.</span><span>figure</span><span>(</span><span>figsize</span><span>=</span><span>[</span><span>10</span><span>,</span> <span>5</span><span>])</span>
    <span>plt</span><span>.</span><span>suptitle</span><span>(</span><span>t</span><span>=</span><span>main_title</span><span>,</span> <span>y</span><span>=</span><span>0.8</span><span>,</span> <span>fontsize</span><span>=</span><span>14</span><span>)</span>
    <span>if</span> <span>main_title</span> <span>!=</span> <span>"</span><span>origin_data</span><span>"</span><span>:</span>
        <span>for</span> <span>i</span><span>,</span> <span>(</span><span>im</span><span>,</span> <span>_</span><span>)</span> <span>in</span> <span>zip</span><span>(</span><span>range</span><span>(</span><span>1</span><span>,</span> <span>6</span><span>),</span> <span>data</span><span>):</span>
            <span>plt</span><span>.</span><span>subplot</span><span>(</span><span>1</span><span>,</span> <span>5</span><span>,</span> <span>i</span><span>)</span>
            <span>am</span> <span>=</span> <span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>s</span><span>,</span> <span>mixture_width</span><span>=</span><span>mw</span><span>,</span> <span>chain_depth</span><span>=</span><span>cd</span><span>,</span>
                        <span>alpha</span><span>=</span><span>a</span><span>,</span> <span>all_ops</span><span>=</span><span>ao</span><span>,</span> <span>interpolation</span><span>=</span><span>ip</span><span>,</span> <span>fill</span><span>=</span><span>f</span><span>)</span>
            <span>plt</span><span>.</span><span>imshow</span><span>(</span><span>X</span><span>=</span><span>am</span><span>(</span><span>im</span><span>))</span>
            <span>plt</span><span>.</span><span>xticks</span><span>(</span><span>ticks</span><span>=</span><span>[])</span>
            <span>plt</span><span>.</span><span>yticks</span><span>(</span><span>ticks</span><span>=</span><span>[])</span>
    <span>else</span><span>:</span>
        <span>for</span> <span>i</span><span>,</span> <span>(</span><span>im</span><span>,</span> <span>_</span><span>)</span> <span>in</span> <span>zip</span><span>(</span><span>range</span><span>(</span><span>1</span><span>,</span> <span>6</span><span>),</span> <span>data</span><span>):</span>
            <span>plt</span><span>.</span><span>subplot</span><span>(</span><span>1</span><span>,</span> <span>5</span><span>,</span> <span>i</span><span>)</span>
            <span>plt</span><span>.</span><span>imshow</span><span>(</span><span>X</span><span>=</span><span>im</span><span>)</span>
            <span>plt</span><span>.</span><span>xticks</span><span>(</span><span>ticks</span><span>=</span><span>[])</span>
            <span>plt</span><span>.</span><span>yticks</span><span>(</span><span>ticks</span><span>=</span><span>[])</span>
    <span>plt</span><span>.</span><span>tight_layout</span><span>()</span>
    <span>plt</span><span>.</span><span>show</span><span>()</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>origin_data</span><span>"</span><span>)</span>
<span>print</span><span>()</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw0_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>0</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw1_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>1</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw2_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>2</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw5_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>5</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw10_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>10</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw25_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>25</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw50_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>50</span><span>)</span>
<span>print</span><span>()</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw0cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>0</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw1cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>1</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw2cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>2</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw5cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>5</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw10cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>10</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw25cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>25</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw50cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>50</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>from</span> <span>torchvision.datasets</span> <span>import</span> <span>OxfordIIITPet</span>
<span>from</span> <span>torchvision.transforms.v2</span> <span>import</span> <span>AugMix</span>
<span>from</span> <span>torchvision.transforms.functional</span> <span>import</span> <span>InterpolationMode</span>

<span>origin_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>None</span>
<span>)</span>

<span>s10mw0_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span> <span># `s` is severity and `mw` is mixture_width. </span>    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>0</span><span>)</span>
<span>)</span>

<span>s10mw1_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>1</span><span>)</span>
<span>)</span>

<span>s10mw2_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>2</span><span>)</span>
<span>)</span>

<span>s10mw5_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>5</span><span>)</span>
<span>)</span>

<span>s10mw10_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>10</span><span>)</span>
<span>)</span>

<span>s10mw25_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>25</span><span>)</span>
<span>)</span>

<span>s10mw50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>10</span><span>,</span> <span>mixture_width</span><span>=</span><span>50</span><span>)</span>
<span>)</span>

<span>mw0cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span> <span># `cd` is chain_depth. </span>    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>0</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>

<span>mw1cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>1</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>

<span>mw2cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>2</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>

<span>mw5cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>5</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>

<span>mw10cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>10</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>

<span>mw25cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>25</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>

<span>mw50cd50_data</span> <span>=</span> <span>OxfordIIITPet</span><span>(</span>
    <span>root</span><span>=</span><span>"</span><span>data</span><span>"</span><span>,</span>                    
    <span>transform</span><span>=</span><span>AugMix</span><span>(</span><span>mixture_width</span><span>=</span><span>50</span><span>,</span> <span>chain_depth</span><span>=</span><span>50</span><span>)</span>
<span>)</span>

<span>import</span> <span>matplotlib.pyplot</span> <span>as</span> <span>plt</span>

<span>def</span> <span>show_images1</span><span>(</span><span>data</span><span>,</span> <span>main_title</span><span>=</span><span>None</span><span>):</span>
    <span>plt</span><span>.</span><span>figure</span><span>(</span><span>figsize</span><span>=</span><span>[</span><span>10</span><span>,</span> <span>5</span><span>])</span>
    <span>plt</span><span>.</span><span>suptitle</span><span>(</span><span>t</span><span>=</span><span>main_title</span><span>,</span> <span>y</span><span>=</span><span>0.8</span><span>,</span> <span>fontsize</span><span>=</span><span>14</span><span>)</span>
    <span>for</span> <span>i</span><span>,</span> <span>(</span><span>im</span><span>,</span> <span>_</span><span>)</span> <span>in</span> <span>zip</span><span>(</span><span>range</span><span>(</span><span>1</span><span>,</span> <span>6</span><span>),</span> <span>data</span><span>):</span>
        <span>plt</span><span>.</span><span>subplot</span><span>(</span><span>1</span><span>,</span> <span>5</span><span>,</span> <span>i</span><span>)</span>
        <span>plt</span><span>.</span><span>imshow</span><span>(</span><span>X</span><span>=</span><span>im</span><span>)</span>
        <span>plt</span><span>.</span><span>xticks</span><span>(</span><span>ticks</span><span>=</span><span>[])</span>
        <span>plt</span><span>.</span><span>yticks</span><span>(</span><span>ticks</span><span>=</span><span>[])</span>
    <span>plt</span><span>.</span><span>tight_layout</span><span>()</span>
    <span>plt</span><span>.</span><span>show</span><span>()</span>

<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>origin_data</span><span>"</span><span>)</span>
<span>print</span><span>()</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw0_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw0_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw1_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw1_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw2_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw2_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw5_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw5_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw10_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw10_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw25_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw25_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>s10mw50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw50_data</span><span>"</span><span>)</span>
<span>print</span><span>()</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw0cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw0cd50_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw1cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw1cd50_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw2cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw2cd50_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw5cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw5cd50_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw10cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw10cd50_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw25cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw25cd50_data</span><span>"</span><span>)</span>
<span>show_images1</span><span>(</span><span>data</span><span>=</span><span>mw50cd50_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw50cd50_data</span><span>"</span><span>)</span>

<span># ↓ ↓ ↓ ↓ ↓ ↓ The code below is identical to the code above. ↓ ↓ ↓ ↓ ↓ ↓ </span><span>def</span> <span>show_images2</span><span>(</span><span>data</span><span>,</span> <span>main_title</span><span>=</span><span>None</span><span>,</span> <span>s</span><span>=</span><span>3</span><span>,</span> <span>mw</span><span>=</span><span>3</span><span>,</span> <span>cd</span><span>=-</span><span>1</span><span>,</span> <span>a</span><span>=</span><span>1.0</span><span>,</span>
                 <span>ao</span><span>=</span><span>True</span><span>,</span> <span>ip</span><span>=</span><span>InterpolationMode</span><span>.</span><span>BILINEAR</span><span>,</span> <span>f</span><span>=</span><span>None</span><span>):</span>
    <span>plt</span><span>.</span><span>figure</span><span>(</span><span>figsize</span><span>=</span><span>[</span><span>10</span><span>,</span> <span>5</span><span>])</span>
    <span>plt</span><span>.</span><span>suptitle</span><span>(</span><span>t</span><span>=</span><span>main_title</span><span>,</span> <span>y</span><span>=</span><span>0.8</span><span>,</span> <span>fontsize</span><span>=</span><span>14</span><span>)</span>
    <span>if</span> <span>main_title</span> <span>!=</span> <span>"</span><span>origin_data</span><span>"</span><span>:</span>
        <span>for</span> <span>i</span><span>,</span> <span>(</span><span>im</span><span>,</span> <span>_</span><span>)</span> <span>in</span> <span>zip</span><span>(</span><span>range</span><span>(</span><span>1</span><span>,</span> <span>6</span><span>),</span> <span>data</span><span>):</span>
            <span>plt</span><span>.</span><span>subplot</span><span>(</span><span>1</span><span>,</span> <span>5</span><span>,</span> <span>i</span><span>)</span>
            <span>am</span> <span>=</span> <span>AugMix</span><span>(</span><span>severity</span><span>=</span><span>s</span><span>,</span> <span>mixture_width</span><span>=</span><span>mw</span><span>,</span> <span>chain_depth</span><span>=</span><span>cd</span><span>,</span>
                        <span>alpha</span><span>=</span><span>a</span><span>,</span> <span>all_ops</span><span>=</span><span>ao</span><span>,</span> <span>interpolation</span><span>=</span><span>ip</span><span>,</span> <span>fill</span><span>=</span><span>f</span><span>)</span>
            <span>plt</span><span>.</span><span>imshow</span><span>(</span><span>X</span><span>=</span><span>am</span><span>(</span><span>im</span><span>))</span>
            <span>plt</span><span>.</span><span>xticks</span><span>(</span><span>ticks</span><span>=</span><span>[])</span>
            <span>plt</span><span>.</span><span>yticks</span><span>(</span><span>ticks</span><span>=</span><span>[])</span>
    <span>else</span><span>:</span>
        <span>for</span> <span>i</span><span>,</span> <span>(</span><span>im</span><span>,</span> <span>_</span><span>)</span> <span>in</span> <span>zip</span><span>(</span><span>range</span><span>(</span><span>1</span><span>,</span> <span>6</span><span>),</span> <span>data</span><span>):</span>
            <span>plt</span><span>.</span><span>subplot</span><span>(</span><span>1</span><span>,</span> <span>5</span><span>,</span> <span>i</span><span>)</span>
            <span>plt</span><span>.</span><span>imshow</span><span>(</span><span>X</span><span>=</span><span>im</span><span>)</span>
            <span>plt</span><span>.</span><span>xticks</span><span>(</span><span>ticks</span><span>=</span><span>[])</span>
            <span>plt</span><span>.</span><span>yticks</span><span>(</span><span>ticks</span><span>=</span><span>[])</span>
    <span>plt</span><span>.</span><span>tight_layout</span><span>()</span>
    <span>plt</span><span>.</span><span>show</span><span>()</span>

<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>origin_data</span><span>"</span><span>)</span>
<span>print</span><span>()</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw0_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>0</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw1_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>1</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw2_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>2</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw5_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>5</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw10_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>10</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw25_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>25</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>s10mw50_data</span><span>"</span><span>,</span> <span>s</span><span>=</span><span>10</span><span>,</span> <span>mw</span><span>=</span><span>50</span><span>)</span>
<span>print</span><span>()</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw0cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>0</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw1cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>1</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw2cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>2</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw5cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>5</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw10cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>10</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw25cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>25</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
<span>show_images2</span><span>(</span><span>data</span><span>=</span><span>origin_data</span><span>,</span> <span>main_title</span><span>=</span><span>"</span><span>mw50cd50_data</span><span>"</span><span>,</span> <span>mw</span><span>=</span><span>50</span><span>,</span> <span>cd</span><span>=</span><span>50</span><span>)</span>
from torchvision.datasets import OxfordIIITPet
from torchvision.transforms.v2 import AugMix
from torchvision.transforms.functional import InterpolationMode

origin_data = OxfordIIITPet(
    root="data",
    transform=None
)

s10mw0_data = OxfordIIITPet( # `s` is severity and `mw` is mixture_width.     root="data",
    transform=AugMix(severity=10, mixture_width=0)
)

s10mw1_data = OxfordIIITPet(
    root="data",
    transform=AugMix(severity=10, mixture_width=1)
)

s10mw2_data = OxfordIIITPet(
    root="data",
    transform=AugMix(severity=10, mixture_width=2)
)

s10mw5_data = OxfordIIITPet(
    root="data",
    transform=AugMix(severity=10, mixture_width=5)
)

s10mw10_data = OxfordIIITPet(
    root="data",
    transform=AugMix(severity=10, mixture_width=10)
)

s10mw25_data = OxfordIIITPet(
    root="data",
    transform=AugMix(severity=10, mixture_width=25)
)

s10mw50_data = OxfordIIITPet(
    root="data",
    transform=AugMix(severity=10, mixture_width=50)
)

mw0cd50_data = OxfordIIITPet( # `cd` is chain_depth.     root="data",                    
    transform=AugMix(mixture_width=0, chain_depth=50)
)

mw1cd50_data = OxfordIIITPet(
    root="data",                    
    transform=AugMix(mixture_width=1, chain_depth=50)
)

mw2cd50_data = OxfordIIITPet(
    root="data",                    
    transform=AugMix(mixture_width=2, chain_depth=50)
)

mw5cd50_data = OxfordIIITPet(
    root="data",                    
    transform=AugMix(mixture_width=5, chain_depth=50)
)

mw10cd50_data = OxfordIIITPet(
    root="data",                    
    transform=AugMix(mixture_width=10, chain_depth=50)
)

mw25cd50_data = OxfordIIITPet(
    root="data",                    
    transform=AugMix(mixture_width=25, chain_depth=50)
)

mw50cd50_data = OxfordIIITPet(
    root="data",                    
    transform=AugMix(mixture_width=50, chain_depth=50)
)

import matplotlib.pyplot as plt

def show_images1(data, main_title=None):
    plt.figure(figsize=[10, 5])
    plt.suptitle(t=main_title, y=0.8, fontsize=14)
    for i, (im, _) in zip(range(1, 6), data):
        plt.subplot(1, 5, i)
        plt.imshow(X=im)
        plt.xticks(ticks=[])
        plt.yticks(ticks=[])
    plt.tight_layout()
    plt.show()

show_images1(data=origin_data, main_title="origin_data")
print()
show_images1(data=s10mw0_data, main_title="s10mw0_data")
show_images1(data=s10mw1_data, main_title="s10mw1_data")
show_images1(data=s10mw2_data, main_title="s10mw2_data")
show_images1(data=s10mw5_data, main_title="s10mw5_data")
show_images1(data=s10mw10_data, main_title="s10mw10_data")
show_images1(data=s10mw25_data, main_title="s10mw25_data")
show_images1(data=s10mw50_data, main_title="s10mw50_data")
print()
show_images1(data=mw0cd50_data, main_title="mw0cd50_data")
show_images1(data=mw1cd50_data, main_title="mw1cd50_data")
show_images1(data=mw2cd50_data, main_title="mw2cd50_data")
show_images1(data=mw5cd50_data, main_title="mw5cd50_data")
show_images1(data=mw10cd50_data, main_title="mw10cd50_data")
show_images1(data=mw25cd50_data, main_title="mw25cd50_data")
show_images1(data=mw50cd50_data, main_title="mw50cd50_data")

# ↓ ↓ ↓ ↓ ↓ ↓ The code below is identical to the code above. ↓ ↓ ↓ ↓ ↓ ↓ def show_images2(data, main_title=None, s=3, mw=3, cd=-1, a=1.0,
                 ao=True, ip=InterpolationMode.BILINEAR, f=None):
    plt.figure(figsize=[10, 5])
    plt.suptitle(t=main_title, y=0.8, fontsize=14)
    if main_title != "origin_data":
        for i, (im, _) in zip(range(1, 6), data):
            plt.subplot(1, 5, i)
            am = AugMix(severity=s, mixture_width=mw, chain_depth=cd,
                        alpha=a, all_ops=ao, interpolation=ip, fill=f)
            plt.imshow(X=am(im))
            plt.xticks(ticks=[])
            plt.yticks(ticks=[])
    else:
        for i, (im, _) in zip(range(1, 6), data):
            plt.subplot(1, 5, i)
            plt.imshow(X=im)
            plt.xticks(ticks=[])
            plt.yticks(ticks=[])
    plt.tight_layout()
    plt.show()

show_images2(data=origin_data, main_title="origin_data")
print()
show_images2(data=origin_data, main_title="s10mw0_data", s=10, mw=0)
show_images2(data=origin_data, main_title="s10mw1_data", s=10, mw=1)
show_images2(data=origin_data, main_title="s10mw2_data", s=10, mw=2)
show_images2(data=origin_data, main_title="s10mw5_data", s=10, mw=5)
show_images2(data=origin_data, main_title="s10mw10_data", s=10, mw=10)
show_images2(data=origin_data, main_title="s10mw25_data", s=10, mw=25)
show_images2(data=origin_data, main_title="s10mw50_data", s=10, mw=50)
print()
show_images2(data=origin_data, main_title="mw0cd50_data", mw=0, cd=50)
show_images2(data=origin_data, main_title="mw1cd50_data", mw=1, cd=50)
show_images2(data=origin_data, main_title="mw2cd50_data", mw=2, cd=50)
show_images2(data=origin_data, main_title="mw5cd50_data", mw=5, cd=50)
show_images2(data=origin_data, main_title="mw10cd50_data", mw=10, cd=50)
show_images2(data=origin_data, main_title="mw25cd50_data", mw=25, cd=50)
show_images2(data=origin_data, main_title="mw50cd50_data", mw=50, cd=50)

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原文链接：AugMix in PyTorch (6)