How to compare two images in Elixir

Asked Sep 28 '16 at 10:52

Active Sep 28 '16 at 12:21

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I have two images in base64 form and I want to compare both images before save to avoid duplicate images.

I try to compare both images like string image1_base64 != image2_base64 it works for some images but it skips all those images which are minor changed from the previous image.

I want to skip only identical images.

asked Sep 28 '16 at 10:52

azharmalik3

I'm sorry I don't understand, you have 2 images with minor changes that have the same base64 representation (`image1_base64 == image2_base64` returns `true`)? – Dogbert Sep 28 '16 at 10:57
Yes, because there is only date difference on the images. – azharmalik3 Sep 28 '16 at 11:03
By date difference you mean the created/modified date/time of the file on the filesystem? – Dogbert Sep 28 '16 at 11:09
Not created/modified date/time. I have date/time over the image. – azharmalik3 Sep 28 '16 at 11:21
3

What exactly do you mean by "base64 form"? How are you getting/generating those? You cannot have 2 non-identical images convert to the same base64 value. – Dogbert Sep 28 '16 at 12:56
Can you provide example of two images? – Oleksandr Avoiants Sep 28 '16 at 15:34
I'd suggest you drop out to a command shell and do a binary comparison. Try looking at this question: http://stackoverflow.com/questions/12118403/comparing-binary-files – Onorio Catenacci Sep 28 '16 at 18:42
It's not solvable with default Elxir means. You need to investigate in neural networks and computer vision topics. – vsushkov Sep 29 '16 at 12:24

How to compare two images in Elixir

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