Bug #11975: Colour picker min values for patch are wrongly displayed - darktable - darktable - photography workflow application

Bug #11975

Colour picker min values for patch are wrongly displayed

Added by Jim Robinson 12 months ago. Updated 12 months ago.

Status:

Fixed

Priority:

Low

Assignee:

Category:

Target version:

2.6.0

Start date:

01/28/2018

Due date:

% Done:

100%

Affected Version:

2.4.1

System:

all

bitness:

64-bit

hardware architecture:

amd64/x86

Description

Hi,

This issue is most easily demonstrated on blue sky, but does occur elsewhere. Using colour picker to select an are on the blue sky will report correct values for mean and (I think) max values, but for the minimum it always displays a green patch. If the patch is saved by using the add button then for min value a small green patch is displayed with appropriate RGB values. If the colour picker pipette is now deselected by clicking the small green patch in the live samples area changes to blue with corresponding changed RGB values. The large green patch above remains. 4 files attached show mean value after selecting piece of sky, min value, the saved min value and the change after the colour picker is switched off.

regards,

Jim

mean_value.PNG (7.91 KB) Jim Robinson, 01/28/2018 07:23 PM

Min Value.PNG (7.31 KB) Jim Robinson, 01/28/2018 07:23 PM

min_value_saved.PNG (7.91 KB) Jim Robinson, 01/28/2018 07:24 PM

colour_picker_switched_off.PNG (8.05 KB) Jim Robinson, 01/28/2018 07:24 PM

Associated revisions

Revision 25050d71
Added by Tobias Ellinghaus 12 months ago

Fix #11975: Min color picker was broken

This fixes a typo, introduced in
27e5861b7d1e7f110ecbb33131bc83f1e8c832ac 6.5 years ago ...

Revision 466da762
Added by Tobias Ellinghaus 11 months ago

Fix #11975: Min color picker was broken

This fixes a typo, introduced in
27e5861b7d1e7f110ecbb33131bc83f1e8c832ac 6.5 years ago ...

(cherry picked from commit 25050d71b482d595b84267d87c95ba97434b3073)

History

#1 Updated by Jim Robinson 12 months ago

On further investigation I see that the the B value of the RGB triplet for the min value of the selected patch is displayed as zero until the colour picker pipette is deselected.

#2 Updated by Jim Robinson 12 months ago

Sorry further investigation suggests that it is a little more complicated, but it seems that one of the values of the RGB triplet is initially recorded wrongly, but is corrected in the live samples area once the picker pipette is deselected.