php - Check similar images -

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we have 2 images different (or not) pictures.

how check php, images same or not?

width , height of images 100x100. option equal. should check draw , colors.

which 1 of php libraries can recommend job?

gd library. there no easy way "is picture same or not?" can compare pixel pixel, @ individual rgba values... if 1 darker? etc.. have come own algorithms checking stuff that.


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