GNOME Bugzilla – Bug 647957
GimpColorFrame's CMYK mode is not color managed
Last modified: 2016-10-18 20:53:35 UTC
Created attachment 186087 [details] screenshot When a tab "About Cursor" mode is CMYK and the cursor hovers over the image, the CMYK values do not coincide with the values of CMYK samples made Dropper tool. In the setting of Gimp allowed to color management, selected "Imitation printer, determine the profile of the press.
Created attachment 186124 [details] right screenshot Sorry, the previous screenshot is not valid
Is this related to bug #467930?
've seen this bug reports. Partly it is the same with my case. But I would like to see in the GIMP tool that adequately demonstrates the amount of paint on all channels of CMYK, and lays it on every channel. In this form it is not usable. The total amount of paint on all channels of CMYK should not exceed 240 percent. This requirement is the company that prints the newspaper. Where can I see it in GIMP?
P.S. Yoshinori Yamakawa filter on my subjective feelings are very adequate. But his work does not match your instrument to control the values of the color channels. I do not demand immediate implementation of CMYK in GIMP, but for an adequate amount of paint on all channels of CMYK, I'll be very grateful ..
Fixed in master: commit f9170b667e5e6579f08d1b9662dd27987d7f3c17 Author: Michael Natterer <mitch@gimp.org> Date: Tue Oct 18 22:48:04 2016 +0200 Bug 647957 - GimpColorFrame's CMYK mode is not color managed Convert GimpRGB to CMYK using a color transform to the configured CMYK profile instead of the naive gimp_rgb_to_cmyk(). Add gimp_color_frame_set_color_config() and call it on all color frames in the GUI (color picker tool, cursor info, sample point view). Keep a GimpColorTransform around that does the conversion. Also color manages the frame's color area now (visible in the sample point view), which was forgotten earlier. Addresses bug #467930. app/display/gimpcursorview.c | 24 ++++++-- app/display/gimpcursorview.h | 2 +- app/tools/gimpcolorpickertool.c | 4 ++ app/widgets/gimpcolorframe.c | 154 ++++++++++++++++++++++++++++++++++++++++++++++------ app/widgets/gimpcolorframe.h | 10 +++- app/widgets/gimpsamplepointeditor.c | 31 ++++++++--- app/widgets/gimpsamplepointeditor.h | 2 +- 7 files changed, 192 insertions(+), 35 deletions(-)