Legacy ImageMagick Discussions Archive

Hi Fred, thanks a lot for the examples and it works wonderful! Next time I will add the version and platform.

Hello, how do I get a checkerboard pattern instead of transparency when converting PNG to JPG? I did manage to get at least something working with 'composite' instead of 'convert'. This results in grey background: composite -compose Dst_Over -tile pattern:checkerboard ./input.png ./output.jpg ...

Thats wonderful news. Waiting for that instead of refactoring code for exception. Thank you so much.

Works perfect! Cant thank you enough.
Had to add the prefix, yes. I take that is to force a delegate?

Hello, I am trying to make a thumbnail of a .3gp video. This works fine with FFMPEG but I want to use IM. However it seems IM is not delegating it to FFMPEG. Is this correct? Or am I missing something?

Ok, I got the bad command completed in 50 seconds, by disabling all disk cache and pure heap memory cache. The heap memory cache is 4GiB, as before. Writing to disk, especially AWS EFS, was the root cause of this. Thanks Magick for pointing me to the debug option, that really helped.

Hi magick, thanks for giving it a try. For that command it also works perfect for us. However does it also finish so well for you when you run either of these?: Bad command 1: convert ./huge-document.psd ./huge-document.jpg Bad command 2: convert ./huge-document.psd -flatten ./huge-document.jpg With ...

Ok, it seems like you are right. Now it did finish the conversion in 10 minutes. Sorry for reporting it as a bug. Will try to tweak to the optimal setting.

There are 7 layers. The reason we put these limits in place as we don't want the server to crash, as the server is used as a rendition generator and most likely have to deal with multiple conversions at the same time. Will try to do the same task with 1952 GB of memory and 128 cores (AWS EC2 x1 ...

The resolution is 10115 × 20000. The moment everything is started and we are about to run the convert it has 28GB of memory available. I am pretty sure it is not just taking a long time, as we let it run for days actually. Also its not writing anything to disk the moment it hangs and uses no CPU at ...

Hello, Whenever I execute one of the bad commands it looks like it gets stuck in some form of infinite loop. When running 'top', this is the end result: PID PPID USER STAT VSZ %VSZ CPU %CPU COMMAND 159 135 root D 20044m 59% 2 0% convert ./huge-document.psd -flatten ./huge-document.jpg 143 135 root T ...