Legacy ImageMagick Discussions Archive

This is real quick, thanks for the fix !

Thanks for testing ! It suggests the change was between 6.9.9 and 6.9.10, and that my install is not messed up, pheew !

-extent seems to be able to replace -crop for this usage, so theses commands :


convert rose: -crop 40x30-10-10\! crop_vp_tl.gif
convert rose: -crop 90x60-10-10\! crop_vp_all.gif
convert rose: -crop 100x100-15-25\! -background skyblue -flatten crop_viewport.gif


converted to use -extent like ...

Hi all !

On Debian testing, ImageMagick 6.9.10-23, i'm not able to use virtual canvas adjustment with negative offset anymore.
Using examples from the doc http://www.imagemagick.org/Usage/crop/#crop_viewport , the result differs on my system :

https://framapic.org/lrfZYdoklqVO/nIWVnDoYSFzd.png ...

Here is a different method is it any quicker ?


Tested both nesting method to crop a 10000 x 10000 image to 2048 x 2048 tiles.

- original bash for loop : 191s
- mpr:image method : 32s
- +clone method : 32s

So both method seem to be equivalent for this use case, and are huge time saver.

Thanks ...