Legacy ImageMagick Discussions Archive

Okay, I wrote something which seems to work, based on what I did read about aHash. Here's the PHP Code: $im = new \Imagick($file); $im->sampleImage(16, 16); $im->transformImageColorspace(\Imagick::COLORSPACE_GRAY); $data = $im->getImageChannelMean(\Imagick::CHANNEL_RED); $mean = $data['mean']; $im ...

Hi there, I tried searching for copy/duplicate/detect duplicate, though I didn't find something here. If I overlooked something (as in this has been already answered somewhere here on the board) please let me know. I also read: https://www.imagemagick.org/Usage/compare/. I am looking for a way to ...

Hey snibgo, thanks for answering. Now that I worked myself through those (and a few more) papers, I do believe the most difficult and at the same time most important part in automating it is working with classification. i.e. Transforming bright and dark areas differently, Transforming low and high ...

Hm... Nobody? I would have expected some answer. Not sure what exactly...

Hi there, I had some very interesting and headache-full days trying to implement the proposed methods of three papers I've found. I decided to use PHP using \Imagick. I believe that those could be easily implemented with pure imagemagick / shell scripts. I'd like to share my results in the hope that ...

Hi Fred,

oh. I see. Thanks.

Jean

Hi Fred, thanks for answering that fast - You've got really nice scripts on your page, just by the way. Back to topic: I tried with a 9x9 test-picture and a 3x3 grid. The command is: convert scale-test.png -statistic median 3x3 scale1.png This seems to do more but the result is still confusing me ...

Hi there, using Linux and ImageMagick 6.9.10-8 Q16 x86_64 20180723 I'm somewhat confused about the results of -statistic median. Please correct me if I'm wrong: Assuming that we do have a 2x2 grayscale grid with two pixel having a value of 134 (gray) and two having a value of 255 (pure white ...