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HSL<->RGB Conversion from Linear RGB
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IT & Programming > Other IT & Programming

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Apr 17, 2010
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Job Description

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  • Posted: Wed, Apr 14, 2010
  • Time Left: Closed
  • Location: Anywhere
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  • Start: Immediately
  • Budget: Less than $500
  • Fixed Price Job
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  • U.S. freelancers must have W9
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I need help to write functions (VBA or VB.NET) to convert HSL to/from sRGB from Linear RGB. Linear RGB can be transformed from/to sRGB (example on:   [obscured]  /wiki/SRGB). HLS information can be found on:   [obscured]  /wiki/HSL_and_HSV. Here is what is needed:

One or more functions to convert from sRGB to Linear RGB to HSL, change or modify any of the HSL values, and then convrt back from HSL to Linear RGB to sRGB.

Examples:
1. 35% Saturation Modulation: Given an sRGB value of R=255, G=153, B=255, convert to Linear RGB space and then modify (modulate) the Saturation value by 35%. The result, back in sRGB, should be R=222, G=186, B=222.
2. 350% Saturation Modulation: Given an sRGB value of R=255, G=153, B=255, convert to Linear RGB space and then modify (modulate) the Saturation value by 350% (three hundred fifty). The result, back in sRGB, should be R=255, G=25, B=255.

I would be happy to provide the VBA code for sRGB to/from LinearRGB transformation, but I do not hav...

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Desired Skills
.NET Framework, VB.NET, VBA
Job ID: 19694621
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