Summary: | Color Channel Mixer ui & usability | ||
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Product: | [Applications] digikam | Reporter: | Jens Mueller <tschenser> |
Component: | Plugin-Editor-Channels | Assignee: | Digikam Developers <digikam-bugs-null> |
Status: | RESOLVED NOT A BUG | ||
Severity: | normal | ||
Priority: | NOR | ||
Version: | 1.1.0 | ||
Target Milestone: | --- | ||
Platform: | Ubuntu | ||
OS: | Unspecified | ||
Latest Commit: | Version Fixed In: | 1.1.0 | |
Sentry Crash Report: |
Description
Jens Mueller
2010-01-28 22:39:47 UTC
Channel Mixer is generally a tool to mix channel together and make black and white images. I have used histogram channel combo to setup mixer chanel, to not duplicates settings here. Try gimp channel mixer tool to compare. The code is ported from gimp to digiKam with 16 bits color depth support. Gilles Caulier Yes Gilles, Gimp behaves the same. It's perfect to do black & white images, but I do still not understand why there are different settings per channel (gimp also). I have to dive deeper in this. A the moment channel mixer tool makes only sense with monochrome option always on for me. As I mentioned colour balance tool: gimp can do it with hightlights|midtones| shadows and has also a preserve luminosity option. It would be nice to have this also in digikam, do you think so? Jens With the channel mixer you can also change the brightness of the image and also use a channel as a weighted subtraction whereas the balance tool doesn't allow this and has another focus. Yes Johannes, weihtened subtraction is the keyword. Most of this entry is invalid. If I think about, everythink is clear. But perhaps we can make things more clear for beginners. Some suggestion would be to rename the "channel" label to "mix channel" or "ouput channel" as gimp. But "output channel" is not the best, as the top right histogram is always output. Another option would be to have a second "mix channel" drop down box between histogram and mixer sliders and make histogram independent of shown mixer settings. Then we can also add a "colours entry" to the histogram channel drop down box. What do you think about? Jens SVN commit 1082351 by jmueller: make the single channel reset toolbuttons work to point to per channels defaults CCBUGS: 224682 M +12 -0 channelmixertool.cpp WebSVN link: http://websvn.kde.org/?view=rev&revision=1082351 |