Legacy ImageMagick Discussions Archive

@modrickthebrave, When I try your method I'm unable to get the compile to include the png delegate still. Getting the following warning on compile: libtool: warning: '/usr/local//lib/libpng16.la' seems to be moved Here's the commands I ran: export INS="/usr/local" export CPPFLAGS="-I$...

Has anyone been able to crack this yet? I need convert for my app as well.

this worked brilliantly with a little bash scripting. Thanks fmw42!

I've got a set of stills extracted from a video that I'd like to process the same way, but when I apply -trim to each still they are getting trimmed a tad different each time (when they should have the exact amount of black space on every still. Is there a way to get the average trim of a set and ap...

just figured it out:

I'm trying to grab the first frame of a video using ffmpeg and pipe it to convert to process: ffmpeg -i 001.mp4 -y -t 00:00:01 -vframes 1 -f image2pipe -vcodec ppm | convert - out.jpg But it throws an error: convert.im6: no decode delegate for this image format `/tmp/magick-95YoBo1i' @ error/constit...

@snibgo

Brilliant post. Can you format that code for linux / bash?

@fmw42

Great suggestion, I can write the code with the text values.

I have been a long time ImageMagick user, huge fan. This question is more about theory than syntax. I have a compressed ultrasound video clip that has a portion at the top (usually 25-75 pixels) that has personal patient information. I'd like to get this value automatically. This upper portion of th...

once I figured out the bash syntax, this works well. Thanks again for a quick response.

snibgo,

I have run into an issue with this code. Specifically the cropping that happens with -distort when the line goes primarily horizontal (0,202) (792,280) is unacceptable. Is there any way to use +distort and know the location of the line?

Ben

snibgo, thanks! this is exactly what I was looking for.

Hello, I am having a hard time wrapping my head around this one. I have an image that the user is able to draw a 3px line across, and that line is extended to the edges of the image. What I'd like to do is crop the image to the pixels under the line and rotate them to have a 3px width portrait-orien...