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PONeed help with comparing two pictures in Python
 

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  1. PONeed help with comparing two pictures in Python
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    <p>Hey guys, Im working on an assignment for my comp sci class, I dont know where Im going wrong here. The function is supposed to take two pictures, pic1 and pic2, and return how different they are.</p> <p>Heres what I have</p> <pre><code>def smart_difference(pic1, pic2): '''Given two Pictures, pic1 and pic2 of any size and colour, return the difference''' red = red_average(pic2) blue = blue_average(pic2) green = green_average(pic2) pic1_height, pic1_width = media.get_height(pic1), media.get_width(pic1) pic2_height, pic2_width = media.get_height(pic2), media.get_width(pic2) if (pic1_height &gt; pic2_height) and (pic1_width &gt; pic2_width): new_pic1 = media.create_picture(pic2_width, pic2_height) new_pic2 = pic2 elif (pic1_height &gt; pic2_height) and (pic2_width &gt; pic1_width): new_pic1 = media.create_picture(pic2_width, pic1_height) new_pic2 = media.create_picture(pic2_width, pic1_height) elif (pic2_height &gt; pic1_height) and (pic2_width &gt; pic1_width): new_pic1 = pic1 new_pic2 = media.create_picture(pic1_width, pic1_height) elif (pic2_height &gt; pic1_height) and (pic1_width &gt; pic2_width): new_pic1 = media.create_picture(pic2_width, pic1_height) new_pic2 = media.create_picture(pic2_width, pic1_height) scale_red(new_pic1, red) scale_blue(new_pic1, blue) scale_green(new_pic1, green) scale_red(new_pic2, red) scale_blue(new_pic2, blue) scale_green(new_pic2, green) return simple_difference(new_pic1, new_pic2) </code></pre> <p>I run a self_test file (which was given to us for our assignment), but I keep getting an error here, can anyone help? </p> <p>*Notes:Simple_difference is another function I wrote beforehand that finds the distance between pixels in the two pictures and scales accordingly </p>
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    1. USRafe Kettler
    1. USVictor B
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    1. COtell us what was that error if you want some help with it
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      1. PONeed help with comparing two pictures in Python
      1. USGabi Purcaru
    2. COHow do you quantify difference? What error do you get?
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      1. PONeed help with comparing two pictures in Python
      1. USJoshD
    3. COWhat library are you using? Doesn't *look* like PIL...
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      1. PONeed help with comparing two pictures in Python
      1. USNick T
 

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