Search found 3 matches

by displayguy
2015-04-17T10:51:23-07:00
Forum: Users
Topic: "convert -colorspace lab" output out of range
Replies: 7
Views: 2287

Re: "convert -colorspace lab" output out of range

Here comes the files (plus screenshots from Colormine and Photoshop): https://drive.google.com/folderview?id=0B5NsdVYF0z_ZfkFCNy1XOEY5blc4UjlKT1N3dUs1bXg0RVloS21CemZsWm83VVhkeGVIQkE&usp=sharing It's the original sRGB file and the output of: convert original.tif -colorspace lab -define quantum:format ...
by displayguy
2015-04-17T09:55:09-07:00
Forum: Users
Topic: "convert -colorspace lab" output out of range
Replies: 7
Views: 2287

Re: "convert -colorspace lab" output out of range

Thanks a bunch! To sum up, I installed libtiff* on my system and compiled IM from source with the following (just being thorough for the benefit of future inquirers): ./configure --enable-hdri --with-libtiff make clean make sudo make install Then I convert the images with: convert input.tif ...
by displayguy
2015-04-15T07:52:41-07:00
Forum: Users
Topic: "convert -colorspace lab" output out of range
Replies: 7
Views: 2287

"convert -colorspace lab" output out of range

Hi all, I'm trying to convert sRGB pictures to CIELAB by running: convert original.tif -colorspace lab output.tif When I extract the values with: convert output.tif output.txt The L value is a LOT higher than the values that I get from resources like Photoshop and colormine.org. More worryingly, the ...