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How was the old GeoCities art made?

Perhaps I am answering this question too late since it was asked two years ago, but I've experimented a lot with art that "emulates" the look of old internet gifs. Mainly, I found that the ...
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If I have a .gif and a .png file, can I compare them to see if they are same image?

If you know your way around some basic Python, this is a rather easy task with OpenCV. Load in both images, convert them into 3 RGB pixelmaps each, and then subtract them from eachother. You can then ...
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If I have a .gif and a .png file, can I compare them to see if they are same image?

If you need to do this regularly, and are willing to spend a few bucks, you could try the excellent software "Beyond Compare" which will display both pictures next to each other, show a ...
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If I have a .gif and a .png file, can I compare them to see if they are same image?

JPEG uses a non-RGB color model, GIF supports color-map images only, while PNG can support true color images. So the first challenge is that PNG does not store more colors than the GIF when converting ...
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If I have a .gif and a .png file, can I compare them to see if they are same image?

Open both images on your photo editing software. Let's say it is Gimp. Copy the GIF image on the clipboard and paste it over the PNG (Not the other way around) Change the blending mode to difference....
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