Legacy ImageMagick Discussions Archive

Pixels you must mean pictures xD A quick search with google gives this topic. http://www.imagemagick.org/discourse-server/viewtopic.php?t=23192 Best of luck. PandoraBox No i mean Pixel aspect ratio not Display aspect ratio https://en.wikipedia.org/wiki/Pixel_aspect_ratio Everything i do will stay i...

I am working with stills from mpeg NTSC footage that I extract with ffmpeg. the pixel resolution is 720x480 but they are rectangular pixels not square. This becomes an issue with some other programs i use, they want a square pixel aspect ratio. I know video players will compensate and playback this ...

That did it! Thank you very much sir

Thanks for the post. Probably should have stated i'm on a Mac and i'm running Version: ImageMagick 6.9.0-0 Q16 x86_64 2015-07-27 When i tried your code i get a bash error '(' unexpected syntax. When i take the Parentheses out i get this: convert: geometry does not contain image `f1.png' @ warning/tr...

I'm writing a script where i'm processing a lot of images. I create 4 files for each batch of images and I only need the last. i'm wondering if i can condense what i'm doing. Here is the first command: convert f1.png f2.png f3.png f4.png f5.png -evaluate-sequence Min -threshold 60% -negate output.pn...

Okay your last line does the trick. I did put in "Min" before but that was it. I thought it was part of -evaluate-sequence and didn't know i had to add threshold to it. With the negate i get excatly what i was looking for. Thank you very much i'll just experiment to find the right amount o...

Okay now i'm making progress. I didn't realize i use -threshold to change the tolerance. Also i extracted my video files to png rather than jpg. Reading ffmpeg howto's this appears to save the image lossless. I'm a little confused at your other suggestion: Instead of single frames, you might take av...

I don't know why these links are broken for the img tag. They work for me when i make them a link at the bottom. The first link is the mask that gets created The second link is the first frame of video the third link is the second frame of video the fourth link is a gif of the two to show that the t...

So I want to extract the text from an image. Seems doable since i can get multiple images that are different, except for the text that i need. Sample: https://www.dropbox.com/s/s607p2a2g1zzed3/Image_1_2.gif?dl=0 I think I should be able to compare the two images and discard what is different, leavin...