Differences between revisions 5 and 6
 ⇤ ← Revision 5 as of 2007-05-28 10:08:14 → Size: 1725 Editor: OlegKobchenko Comment: clarified formula ← Revision 6 as of 2008-12-08 10:45:30 → ⇥ Size: 1747 Editor: anonymous Comment: converted to 1.6 markup Deletions are marked like this. Additions are marked like this. Line 1: Line 1: (./) Download: attachment:coloradj.ijs (./) Download: [[attachment:coloradj.ijs]] Line 3: Line 3: inline:coloradj.png {{attachment:coloradj.png}} Line 12: Line 12: [[latex( $f(x) = \,_0^{255}]\, B + C\, \hat x^{1/G}, \quad \,_a^b] x=max\{a,min\{b,\lfloor x \rfloor\}\}, \quad f(\hat x) = 255 \,f(x/_{255})$ )]] <> Line 19: Line 19: The [:Essays/Histogram:histogram] shows input levels The [[Essays/Histogram|histogram]] shows input levels Line 22: Line 22: The image is loaded from a file using Self:Addons/media/platimg. The image is loaded from a file using [[Addons/media/platimg]]. Line 34: Line 34: * [http://www.colorpilot.com/curvepilotmac.html Curve Pilot for Mac], Two Pilots * [http://dl-c.com/content/view/16/30/ Color Mechanic], Digital Light & Color * [http://thephotofinishes.com/demoCurves.htm Curves Tool for Color Corrections], Photoshop screencast * [http://www.vividlight.com/articles/1014.htm Understanding Curves and Levels], Photoshop tutorial * [http://www.google.com/search?q=color+curves color curves], Google * [[http://www.colorpilot.com/curvepilotmac.html|Curve Pilot for Mac]], Two Pilots * [[http://dl-c.com/content/view/16/30/|Color Mechanic]], Digital Light & Color * [[http://thephotofinishes.com/demoCurves.htm|Curves Tool for Color Corrections]], Photoshop screencast * [[http://www.vividlight.com/articles/1014.htm|Understanding Curves and Levels]], Photoshop tutorial * [[http://www.google.com/search?q=color+curves|color curves]], Google Line 40: Line 40: [[BR]] <
>

Color Adjust is an application that applies color adjustments on an image. The adjustment is the result of applying a linear-power transformation with coefficients: brightness B (-100..100), contrast C (0.2..5) and gamma G (0.2..5), to each pixel channel x (0..255) of the original image:

The adjustment can be applied to separate or common RGB channels. The color curve plot shows the filter profile which maps the horizontal x input into vertical y.

The histogram shows input levels of the common RGB channel in the original image.

The image is loaded from a file using Addons/media/platimg. The result can be obtained as render verb of the application locale with 0 for separate and 3 for common RGB channels.