Hi, I would like to know if there is an algorithm to compare two jpg
without using RMagick.
Thanks.
Hi, I would like to know if there is an algorithm to compare two jpg
without using RMagick.
Thanks.
Hi,
Well, it certainly depens on that you mean by “comparing”. Maybe this is
helpful:
Thanks
Jan E. wrote in post #1051817:
Hi,
Well, it certainly depens on that you mean by “comparing”. Maybe this is
helpful:http://rosettacode.org/wiki/Percentage_difference_between_images#Ruby
Sorry. I used the Average Hash algorithm on that page.
I used
http://www.hackerfactor.com/blog/index.php?/archives/432-Looks-Like-It.html
for comparing mugshots. Its tweak-able an worked well enough. I did
this in jruby and python. I found I had to write my own shrink method
because resizing produces different results even with the same
algorithms.
Becker
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