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Gamut compression - reduce artifacts resulting from out of gamut (#7205)

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* First functions needs for ACES

* New file GUI compressgamut

* GUI first step

* GUI first step

* Gui step 2

* GUI procparams and paramsedit

* GUI read

* GUI step 4

* GUI step 5

* First tooltip

* Gamut compression tooltips

* Various GUI improvment

* History msg

* Comment code with Aces remarks

* First change improccoordinator and events

* Save work on matrix

* Compress gamut next work

* First try gamut compress

* Replace cout by printf in invertmatrix

* Change tooltips and events

* Added namespace std to iplab2rgb

* Comment code

* Active rtthumbnail

* Change tooltip

* Various improvment GUI and rolloff

* Added adobeRGB gamut

* Appimage windows yml

* Remove rttumbnail gamutcompr

* Change event to COMPR

* Change tooltip and verbose

* Restore raw de-haze history message

* Refactor ACES gamut compression functions

* Fix gamut compression color space history message

Correctly display the color space name.

* Add "unchanged" for gamut compression color space

Allow "unchanged" in batch mode.

* Fix gamut compression yellow distance for batch

* Update copyright for gamut compression GUI

* Fix gamut compression color space names

* Refactor gamut compression code

* Remove comment rtthumnail.cc - Acesp1 default

* Change matrix DCI-P3 - threshold maximum to 1 in GUI and in gamut compression - tooltips

* Change tooltip

* Clean code - change tooltips

* Remove appimage windows yml

---------

Co-authored-by: Lawrence Lee <45837045+Lawrence37@users.noreply.github.com>
This commit is contained in:
Desmis
2024-11-14 13:08:52 +01:00
committed by GitHub
parent 691fe80896
commit b73840cf3c
20 changed files with 1059 additions and 2 deletions
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@@ -1404,6 +1404,16 @@ HISTORY_MSG_COLORTONING_LABREGION_SHOWMASK;CT - region show mask
HISTORY_MSG_COLORTONING_LABREGION_SLOPE;CT - region slope
HISTORY_MSG_COMPLEX;Wavelet complexity
HISTORY_MSG_COMPLEXRETI;Retinex complexity
HISTORY_MSG_CG_COLORSPACE;Gamut Compression - Target
HISTORY_MSG_CG_CYANTH;Gamut Compression - Threshold Cyan
HISTORY_MSG_CG_MAGENTATH;Gamut Compression - Threshold Magenta
HISTORY_MSG_CG_YELLOWTH;Gamut Compression - Threshold Yellow
HISTORY_MSG_CG_CYANLIM;Gamut Compression - Max Limits Cyan
HISTORY_MSG_CG_MAGENTALIM;Gamut Compression - Max Limits Magenta
HISTORY_MSG_CG_YELLOWLIM;Gamut Compression - Max Limits Yellow
HISTORY_MSG_CG_ROLLOFF;Gamut Compression - Rolloff
HISTORY_MSG_CG_VALUE;Gamut Compression - Power
HISTORY_MSG_CG_ENABLED;Gamut Compression - Enabled
HISTORY_MSG_DEHABLACK;Dehaze Bayer Black
HISTORY_MSG_DEHABLACKX;Dehaze X-Trans Black
HISTORY_MSG_DEHAZE_DEPTH;Dehaze - Depth
@@ -2504,6 +2514,28 @@ TP_COLORTONING_TWOALL;Special chroma
TP_COLORTONING_TWOBY;Special a* and b*
TP_COLORTONING_TWOCOLOR_TOOLTIP;Standard chroma:\nLinear response, a* = b*.\n\nSpecial chroma:\nLinear response, a* = b*, but unbound - try under the diagonal.\n\nSpecial a* and b*:\nLinear response unbound with separate curves for a* and b*. Intended for special effects.\n\nSpecial chroma 2 colors:\nMore predictable.
TP_COLORTONING_TWOSTD;Standard chroma
TP_COMPRESSGAMUT_LABEL;Gamut Compression
TP_COMPRESSGAMUT_MAIN_COLORSPACE;Target Compression Gamut
TP_COMPRESSGAMUT_COLORSPACE_TOOLTIP;Gamut-compress is a tool which allows you to compress highly chromatic camera source colorimetry into a smaller gamut.\n Out of gamut negative pixel values are problematic for working on images and should be avoided if possible.\n Blue LED are perceive as highly colorful and colors like beetles, flowers and hummingbirds often over saturated.\n\n This is not a gamut conversion : converting from one gamut to another does change the values of the pixels. However it does not actually change the colorimetric meaning of the pixel data. You could say that by converting between gamuts, you are changing frame of reference to the same colors. After compression the working profile is restored.\n\n Choose the workspace that will be used to set the gamut limits. Depending on the case you can choose:\n The display gamut (sRGB, DCI P3,...). \n The gamut of an output file for use by another software (Prophoto, Rec 2020...).
TP_COMPRESSGAMUT_THRESHOLD_TOOLTIP;Threshold: controls the percentage of the outer gamut to affect. A value of 0.8 will compress out of gamut values into the outer 20% of the gamut. The inner 80% of the gamut core will not be affected. You can adjust the colors separately: for example if you wanted to protect magenta and yellow a little more than cyan, you could set the threshold a bit higher for cyan.\n\nThe thresholds are relative to the Target Compression Gamut. They may need to be adjusted after changing the target gamut if you want the protected color range to remain unchanged.
TP_COMPRESSGAMUT_DCIP3;DCI-P3
TP_COMPRESSGAMUT_ACESP1;ACES AP1
TP_COMPRESSGAMUT_POWER_TOOLTIP;Power: Control the aggressiveness of the compression curve.\n Higher power values result in more compressed values distributed closer to the gamut boundary. This will increase the "color purity" or "saturation" once the image has been rendered through a display transform.\n Higher values have a smoother transition.
TP_COMPRESSGAMUT_LIMIT_TOOLTIP;Maximum Distance Limit: is the distance outside of the gamut boundary to compress to the gamut boundary. For example, a value of 1.2 will compress distance values of 1.2 to a value of 1.0. \nIndividual controls are given for each color component. They are named cyan magenta and yellow because they actually control the max distance from the edge of the triangle (primaries related to the CIExy diagram), not the corner. For example, boosting the value of the cyan distance limit will increase the distance from which values are mapped to the edge between the blue and green corners of the triangle.\nThe distance limits also control the RGB ratios of the compressed values, which affects the apparent hue.\n\nThe distances are relative to the Target Compression Gamut. They may need to be adjusted after changing the target gamut if you want the amount of compression to remain unchanged.
TP_COMPRESSGAMUT_PROPHOTO;ProPhoto
TP_COMPRESSGAMUT_REC2020;Rec. 2020
TP_COMPRESSGAMUT_ADOBE;Adobe RGB
TP_COMPRESSGAMUT_SRGB;sRGB
TP_COMPRESSGAMUT_CYANTH;Cyan
TP_COMPRESSGAMUT_MAGENTATH;Magenta
TP_COMPRESSGAMUT_YELLOWTH;Yellow
TP_COMPRESSGAMUT_THRESHOLD;Threshold
TP_COMPRESSGAMUT_CYANLIM;Cyan
TP_COMPRESSGAMUT_MAGENTALIM;Magenta
TP_COMPRESSGAMUT_YELLOWLIM;Yellow
TP_COMPRESSGAMUT_LIMIT;Maximum Distance Limits
TP_COMPRESSGAMUT_ROLLOFF;Rolloff
TP_COMPRESSGAMUT_PWR;Power
TP_CROP_FIXRATIO;Lock ratio
TP_CROP_GTCENTEREDSQUARE;Centered square
TP_CROP_GTDIAGONALS;Rule of Diagonals