Bug 258717

Summary: RGB values Missing
Product: [Applications] digikam Reporter: David Vincent-Jones <davidvincentjones>
Component: Plugin-Editor-CurvesAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: caulier.gilles
Priority: NOR    
Version First Reported In: 1.6.0   
Target Milestone: ---   
Platform: Unlisted Binaries   
OS: Linux   
Latest Commit: https://invent.kde.org/graphics/digikam/-/commit/2f603e9f078ca148bd354befe73a87637e2191d0 Version Fixed/Implemented In: 9.0.0
Sentry Crash Report:

Description David Vincent-Jones 2010-12-03 18:32:28 UTC 
Version:           1.6.0 (using KDE 4.5.4) 
OS:                Linux

During COLOR > CURVES ADJUST the value of the image pixel(s) under the cursor is no longer shown and the corresponding location of that luminescence is no longer shown as an indicator line on the curve.

The above was a part of previous DK versions.

Reproducible: Always

Steps to Reproduce:
Tried in several display modes

Actual Results:  
Function unavailable

Expected Results:  
Either a permanent vertical line to be marked on the curve after a click on an image location or a line or mark is displayed on the curve as the cursor moves over the image. Either would be acceptable. The RGB values also need to be displayed in the lower footer. 

OS: Linux (i686) release 2.6.35-23-generic
Compiler: cc
Comment 1 caulier.gilles 2011-11-10 10:27:28 UTC 

*** This bug has been marked as a duplicate of bug 266335 ***
Comment 2 caulier.gilles 2026-01-25 11:00:05 UTC 
Git commit 2f603e9f078ca148bd354befe73a87637e2191d0 by Gilles Caulier.
Committed on 25/01/2026 at 10:58.
Pushed by cgilles into branch 'master'.

restore the curves histogram indicator with pick colors tools
Related: bug 266335
FIXED-IN: 9.0.0

M  +8    -9    core/dplugins/editor/colors/adjustcurves/adjustcurvestool.cpp
M  +1    -1    core/dplugins/editor/colors/adjustcurves/adjustcurvestool.h
M  +5    -0    core/libs/dimg/filters/curves/curvessettings.cpp
M  +2    -0    core/libs/dimg/filters/curves/curvessettings.h
M  +2    -3    core/libs/dimg/filters/curves/curveswidget.cpp
M  +2    -0    core/libs/widgets/graphicsview/graphicsdimgview.cpp
M  +10   -10   core/libs/widgets/graphicsview/graphicsdimgview.h
M  +24   -4    core/utilities/imageeditor/widgets/imageregionwidget.cpp
M  +3    -1    core/utilities/imageeditor/widgets/imageregionwidget.h

https://invent.kde.org/graphics/digikam/-/commit/2f603e9f078ca148bd354befe73a87637e2191d0