ICC Profile Creator - Revision history

DrSlony at 23:44, 3 June 2021

2021-06-03T23:44:43Z

← Older revision		Revision as of 23:44, 3 June 2021
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	==Usage==		==Usage==

	~~To access~~ the ~~Profile Generator dialog box, click on the button next to the Preferences and Help icons~~		Access this module via the [[File:Gamut-plus.png]] ICC Profile Creator button located either in the bottom-left or top-right of the RawTherapee window.
	([[File:~~toolbar_icc~~-~~creator~~.~~jpg\|x26px\|text-bottom~~]]~~) at~~ the ~~far~~ left or top right of the RawTherapee window.

	To make the profiles ~~subsequently~~ available for use in RawTherapee, save them in the ~~standard~~ color ~~profile directory of your operating system~~ as ~~defined~~ in ~~the~~ Preferences >[[Preferences#Color_Management_Tab\| Color Management ~~tab~~]].		To make the profiles you generate available for use in RawTherapee, save them to the "directory containing color profiles" as specified in Preferences > [[Preferences#Color_Management_Tab\|Color Management]].

	===Primary Colors===		===Primary Colors===

DrSlony at 23:13, 3 June 2021

2021-06-03T23:13:49Z

← Older revision		Revision as of 23:13, 3 June 2021
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	The code and the basic principles are similar to those used for[[Color_Management#Abstract_Profiles \| Abstract profiles]]		The code and the basic principles are similar to those used for[[Color_Management#Abstract_Profiles \| Abstract profiles]]

	==~~Using the profile generator~~==		==Usage==

	To access the Profile Generator dialog box, click on the button next to the Preferences and Help icons		To access the Profile Generator dialog box, click on the button next to the Preferences and Help icons
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	To make the profiles subsequently available for use in RawTherapee, save them in the standard color profile directory of your operating system as defined in the Preferences >[[Preferences#Color_Management_Tab\| Color Management tab]].		To make the profiles subsequently available for use in RawTherapee, save them in the standard color profile directory of your operating system as defined in the Preferences >[[Preferences#Color_Management_Tab\| Color Management tab]].

	===~~The primary colors~~===		===Primary Colors===

	The three primary colors - Red, Green, Blue - are additive and form the basis of all other colors. In the ICC profile generator, you specify the location of the primary colors on the 1931 CIE xy chromaticity diagram using the xy coordinates.		The three primary colors - Red, Green, Blue - are additive and form the basis of all other colors. In the ICC profile generator, you specify the location of the primary colors on the 1931 CIE xy chromaticity diagram using the xy coordinates.
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	[[Color_Management#How_the_.22Primaries_and_White_Point.22_algorithm_works\| Operation of the algorithm]]		[[Color_Management#How_the_.22Primaries_and_White_Point.22_algorithm_works\| Operation of the algorithm]]

	===~~The tone reproduction curve (TRC)~~===		===Tone Reproduction Curve===

	The TRC is essentially a curve that transforms the initial or input values of the image into values that will be recorded in the output image. We can modify 2 parameters:		The TRC is essentially a curve that transforms the initial or input values of the image into values that will be recorded in the output image. We can modify 2 parameters:

DrSlony at 22:41, 3 June 2021

2021-06-03T22:41:22Z

← Older revision		Revision as of 22:41, 3 June 2021
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	==Using the profile generator==		==Using the profile generator==

	To access the Profile Generator dialog box, click on the button next to the Preferences and Help icons		To access the Profile Generator dialog box, click on the button next to the Preferences and Help icons
	([[File:toolbar_icc-creator.jpg\|x26px\|text-bottom]]) at the far left or top right of the RawTherapee window.		([[File:toolbar_icc-creator.jpg\|x26px\|text-bottom]]) at the far left or top right of the RawTherapee window.
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	===The primary colors===		===The primary colors===

	The three primary colors - Red, Green, Blue - are additive and form the basis of all other colors. In the ICC profile generator, you specify the location of the primary colors on the 1931 CIE xy chromaticity diagram using the xy coordinates.		The three primary colors - Red, Green, Blue - are additive and form the basis of all other colors. In the ICC profile generator, you specify the location of the primary colors on the 1931 CIE xy chromaticity diagram using the xy coordinates.

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	===The tone reproduction curve (TRC)===		===The tone reproduction curve (TRC)===

	The TRC is essentially a curve that transforms the initial or input values of the image into values that will be recorded in the output image. We can modify 2 parameters:		The TRC is essentially a curve that transforms the initial or input values of the image into values that will be recorded in the output image. We can modify 2 parameters:
	* ~~gamma;~~		* Gamma,
	* ~~slope;~~		* Slope.

	You can choose predefined values such as 'standard g 2.2', 'sRGB g=2.4 s=12.92' or build a custom TRC. In the case of a custom TRC, the curve will consist of a linear part and a parabolic part with a seamless connection between the two.		You can choose predefined values such as 'standard g 2.2', 'sRGB g=2.4 s=12.92' or build a custom TRC. In the case of a custom TRC, the curve will consist of a linear part and a parabolic part with a seamless connection between the two.

	You can see other uses of the TRC in Abstract profiles > ~~TRC~~		You can see other uses of the TRC in Abstract profiles > [[Color_Management#TRC_-_Tone_Response_Curve\|TRC_-_Tone_Response_Curve]].
	[[Color_Management#TRC_-_Tone_Response_Curve \| ~~Tone response curve~~]]

	===Illuminant===		===Illuminant===
	The illuminant is used to derive the white-point reference for color profiles. The white point, which is identified by its temperature and a symbol (D50, ~~stdA~~ 2856K, Fluorescent F11,...) is represented using either XYZ or xyY data calculated as follows: X,Z (Y= 1) = Sum of the matrix product from 350nm to 830nm [Observer 2° x or z][Illuminant I]/ Sum of the matrix product from 350nm to 830nm [Observer 2° y][Illuminant I].
			The illuminant is used to derive the white-point reference for color profiles. The white point, which is identified by its temperature and a symbol (D50, StdA 2856K, Fluorescent F11, etc.) is represented using either XYZ or xyY data calculated as follows: X,Z (Y= 1) = Sum of the matrix product from 350nm to 830nm [Observer 2° x or z][Illuminant I]/ Sum of the matrix product from 350nm to 830nm [Observer 2° y][Illuminant I].

	Although the colors are usually encoded using one of the standard D50, D60 or D65 illuminants, you can specify a different illuminant in the drop-down list. In this case, the profile generator will add the necessary chromaticity adaptation to convert the colors to the selected illuminant.		Although the colors are usually encoded using one of the standard D50, D60 or D65 illuminants, you can specify a different illuminant in the drop-down list. In this case, the profile generator will add the necessary chromaticity adaptation to convert the colors to the selected illuminant.

	For further information on illuminants and Abstract Profiles see:		For further information on illuminants and Abstract Profiles see: [[Color_Management#Illuminant_-_white_point\| Illuminant - Abstract profile]].
	[[Color_Management#Illuminant_-_white_point\| Illuminant - Abstract profile]]

Jdc: /* Illuminant */

2021-05-31T06:13:36Z

Illuminant

← Older revision		Revision as of 06:13, 31 May 2021
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	===Illuminant===		===Illuminant===
	The illuminant is used to derive the white-point reference for color profiles. The white point, which is identified by its temperature and a symbol (D50, stdA 2856K, Fluorescent F11,...) is represented using either XYZ or xyY data calculated as follows: X,Z (Y= 1) = Sum of the matrix product from ~~380nm~~ to 830nm [Observer 2° x or z][Illuminant I]/ Sum of the matrix product from ~~380nm~~ to 830nm [Observer 2° y][Illuminant I].		The illuminant is used to derive the white-point reference for color profiles. The white point, which is identified by its temperature and a symbol (D50, stdA 2856K, Fluorescent F11,...) is represented using either XYZ or xyY data calculated as follows: X,Z (Y= 1) = Sum of the matrix product from 350nm to 830nm [Observer 2° x or z][Illuminant I]/ Sum of the matrix product from 350nm to 830nm [Observer 2° y][Illuminant I].

	Although the colors are usually encoded using one of the standard D50, D60 or D65 illuminants, you can specify a different illuminant in the drop-down list. In this case, the profile generator will add the necessary chromaticity adaptation to convert the colors to the selected illuminant.		Although the colors are usually encoded using one of the standard D50, D60 or D65 illuminants, you can specify a different illuminant in the drop-down list. In this case, the profile generator will add the necessary chromaticity adaptation to convert the colors to the selected illuminant.

Jdc: /* Using the profile generator */

2021-05-31T06:10:57Z

Using the profile generator

← Older revision		Revision as of 06:10, 31 May 2021
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	([[File:toolbar_icc-creator.jpg\|x26px\|text-bottom]]) at the far left or top right of the RawTherapee window.		([[File:toolbar_icc-creator.jpg\|x26px\|text-bottom]]) at the far left or top right of the RawTherapee window.

	To make the profiles subsequently available for use in RawTherapee, save them in the standard color p profile directory of your operating system as defined in the Preferences >[[Preferences#Color_Management_Tab\| Color Management tab]].		To make the profiles subsequently available for use in RawTherapee, save them in the standard color profile directory of your operating system as defined in the Preferences >[[Preferences#Color_Management_Tab\| Color Management tab]].

	===The primary colors===		===The primary colors===
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	The illuminant is used to derive the white-point reference for color profiles. The white point, which is identified by its temperature and a symbol (D50, stdA 2856K, Fluorescent F11,...) is represented using either XYZ or xyY data calculated as follows: X,Z (Y= 1) = Sum of the matrix product from 380nm to 830nm [Observer 2° x or z][Illuminant I]/ Sum of the matrix product from 380nm to 830nm [Observer 2° y][Illuminant I].		The illuminant is used to derive the white-point reference for color profiles. The white point, which is identified by its temperature and a symbol (D50, stdA 2856K, Fluorescent F11,...) is represented using either XYZ or xyY data calculated as follows: X,Z (Y= 1) = Sum of the matrix product from 380nm to 830nm [Observer 2° x or z][Illuminant I]/ Sum of the matrix product from 380nm to 830nm [Observer 2° y][Illuminant I].

	Although the ~~illuminant~~ usually ~~used to encode the colors is~~ one of the standard D50, D60 or D65 illuminants, you can specify a different illuminant in the list. In this case, the profile generator will add the necessary chromaticity adaptation to convert the colors to the selected illuminant.		Although the colors are usually encoded using one of the standard D50, D60 or D65 illuminants, you can specify a different illuminant in the drop-down list. In this case, the profile generator will add the necessary chromaticity adaptation to convert the colors to the selected illuminant.

	For further information on illuminants and Abstract Profiles see:		For further information on illuminants and Abstract Profiles see:
	[[Color_Management#Illuminant_-_white_point\| Illuminant - Abstract profile]]		[[Color_Management#Illuminant_-_white_point\| Illuminant - Abstract profile]]

Jdc: /* Using the profile generator */

2021-05-30T17:02:44Z

Using the profile generator

← Older revision		Revision as of 17:02, 30 May 2021
Line 19:		Line 19:
	([[File:toolbar_icc-creator.jpg\|x26px\|text-bottom]]) at the far left or top right of the RawTherapee window.		([[File:toolbar_icc-creator.jpg\|x26px\|text-bottom]]) at the far left or top right of the RawTherapee window.

	To make the profiles subsequently available for use in RawTherapee, save them in the standard color p profile directory of your operating system as defined in the Preferences[[Preferences#Color_Management_Tab\| Color Management tab]].		To make the profiles subsequently available for use in RawTherapee, save them in the standard color p profile directory of your operating system as defined in the Preferences >[[Preferences#Color_Management_Tab\| Color Management tab]].

	===The primary colors===		===The primary colors===

Jdc: /* Using the profile generator */

2021-05-30T17:01:51Z

Using the profile generator

← Older revision		Revision as of 17:01, 30 May 2021
Line 19:		Line 19:
	([[File:toolbar_icc-creator.jpg\|x26px\|text-bottom]]) at the far left or top right of the RawTherapee window.		([[File:toolbar_icc-creator.jpg\|x26px\|text-bottom]]) at the far left or top right of the RawTherapee window.

	To make the profiles subsequently available for use in RawTherapee, save them in the standard color p profile directory of your operating system as defined in the Preferences ~~> Color Management~~ [[Preferences#Color_Management_Tab\| Color Management tab]].		To make the profiles subsequently available for use in RawTherapee, save them in the standard color p profile directory of your operating system as defined in the Preferences[[Preferences#Color_Management_Tab\| Color Management tab]].

	===The primary colors===		===The primary colors===

Jdc: /* The tone reproduction curve (TRC) */

2021-05-30T17:00:07Z

The tone reproduction curve (TRC)

← Older revision		Revision as of 17:00, 30 May 2021
Line 30:		Line 30:
	===The tone reproduction curve (TRC)===		===The tone reproduction curve (TRC)===
	The TRC is essentially a curve that transforms the initial or input values of the image into values that will be recorded in the output image. We can modify 2 parameters:		The TRC is essentially a curve that transforms the initial or input values of the image into values that will be recorded in the output image. We can modify 2 parameters:
			* gamma;
	gamma;		* slope;
	slope;

	You can choose predefined values such as 'standard g 2.2', 'sRGB g=2.4 s=12.92' or build a custom TRC. In the case of a custom TRC, the curve will consist of a linear part and a parabolic part with a seamless connection between the two.		You can choose predefined values such as 'standard g 2.2', 'sRGB g=2.4 s=12.92' or build a custom TRC. In the case of a custom TRC, the curve will consist of a linear part and a parabolic part with a seamless connection between the two.

Jdc: /* Using the profile generator */

2021-05-30T16:54:19Z

Using the profile generator

← Older revision		Revision as of 16:54, 30 May 2021
Line 16:		Line 16:

	==Using the profile generator==		==Using the profile generator==
	To access the Profile Generator dialog box, click on the button next to the Preferences and Help icons (~~Toolbar icc~~-creator.jpg) at the far left or top right of the RawTherapee window.		To access the Profile Generator dialog box, click on the button next to the Preferences and Help icons
			([[File:toolbar_icc-creator.jpg\|x26px\|text-bottom]]) at the far left or top right of the RawTherapee window.

	To make the profiles subsequently available for use in RawTherapee, save them in the standard color profile directory of your operating system as defined in the Preferences > Color Management [[Preferences#Color_Management_Tab\| Color Management tab]].		To make the profiles subsequently available for use in RawTherapee, save them in the standard color p profile directory of your operating system as defined in the Preferences > Color Management [[Preferences#Color_Management_Tab\| Color Management tab]].

	===The primary colors===		===The primary colors===

Jdc: /* Illuminant */

2021-05-30T16:51:43Z

Illuminant

← Older revision		Revision as of 16:51, 30 May 2021
Line 43:		Line 43:
	Although the illuminant usually used to encode the colors is one of the standard D50, D60 or D65 illuminants, you can specify a different illuminant in the list. In this case, the profile generator will add the necessary chromaticity adaptation to convert the colors to the selected illuminant.		Although the illuminant usually used to encode the colors is one of the standard D50, D60 or D65 illuminants, you can specify a different illuminant in the list. In this case, the profile generator will add the necessary chromaticity adaptation to convert the colors to the selected illuminant.

	For further information on illuminants and Abstract Profiles see: ~~Illuminant - Abstract profile~~		For further information on illuminants and Abstract Profiles see:
	[[Color_Management~~/fr~~#Illuminant_-~~_point_blanc~~ \| Illuminant - Abstract profile]]		[[Color_Management#Illuminant_-_white_point\| Illuminant - Abstract profile]]