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How to set SDL_Surface's saturation,lighteness,balance..?

 
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lifecat9



Joined: 29 Aug 2008
Posts: 7
PostPosted: Wed Sep 10, 2008 12:58 pm    Post subject: How to set SDL_Surface's saturation,lighteness,balance..? Reply with quote
How to set the SDL_Surface color's saturation,lighteness,balance and contrast value like Photoshop in PSP???

1.use SDL_Image read a Image to a SDL_Surface.
2.modify SDL_Surface's color saturation(or lighteness,balance,contrast) just like Photoshop..

I want to write a PSP Photoshop software.

Is anyone help me?
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Noko



Joined: 06 Sep 2008
Posts: 23
PostPosted: Wed Sep 10, 2008 3:44 pm    Post subject: Reply with quote
http://www.google.com/search?hl=en&q=RGB+to+HSL

second link
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lifecat9



Joined: 29 Aug 2008
Posts: 7
PostPosted: Thu Sep 11, 2008 6:00 pm    Post subject: Reply with quote
Noko wrote:
http://www.google.com/search?hl=en&q=RGB+to+HSL

second link



thinks.
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