Legacy ImageMagick Discussions Archive

Here is one way to do that. Convert the image to binary where yellow becomes white and the rest becomes black. Then flood fill the outer black area with white. Then get the bounding box of the largest black region, which corresponds to the center area inside the yellow border. Then crop to that boun...

Are these exact duplicates or near duplicates? If the latter, how are they not exactly the same? Have you considered using a perceptual hash to find similar or same images? ImageMagick has compare -metric phash image1 image2 null: See https://imagemagick.org/discourse-server/viewtopic.php?f=4&t=...

Sorry, perhaps I misunderstand. But the command in that reference does just what you are asking. Give it two images and do the compose lighten command. Or use

ImageMagick 6.7.6-5 is ancient. Try installing a newer version. Perhaps your version is too old for Imagick.

Perhaps the IM developers will add these patches to the Pango ImageMagick coder?

Snibgo: I do not want a bilevel output. I wanted to crop the input image without affecting the color. The clone is converted to black and white before the -type bilevel. Adding +dither -colors 2 before -type bilevel did not change the output and should not have any bearing on making the clone into b...

I can duplicate the issue with IM 6.9.10.63 Q16 and IM 7.0.8.63 Q16 HDRI on Mac OSX Sierra. But I am not sure which is correct. Nevertheless, I would think theys should be the same.

I even tried setting -intensity rec709luma for both commands before -morphology, but it did not make any difference.

Neat! Great ideas.

I like approach 2 best. It is fast, looks good and is simple with only one clone.

If the delegate library supports the format that you want, you might be able to do that by editing or creating an entry in the delegates.xml file. See delegates.xml at https://imagemagick.org/script/resources.php

@dattran92. Please see the private message I sent you on this server.

I have some code below that clones an image and uses connected components on a binary version to get crop coordinates. If I output to JPG the result is wrongly grayscale. But if I output to PNG, the result is properly in color. The input is a color JPG. Input: http://www.fmwconcepts.com/misc_tests/...

Sorry, I still do not understand. Please show and example of the input filename, text1 and text2. If you put your text into variables, then you can do

Unix Syntax for variables.

With regard to automatically cropping, this is one method, but it may not work in all cases, since the clouds are white also and for the cases where other crosses are behind and overlapped by the main cross. The idea is to make a copy of the image (clone) and threshold it so that the crosses are whi...

They are even more important in Imagemagick 7.

I do not understand your question about delimiter character. What is line1 and line2? montage does not know which line or row in the montage the image is on. Perhaps I misunderstand what you are asking. Your syntax is bad. Use -label before reading the input. So this works for me on Mac OSX montage ...