coding colors

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Permalink Reply by Giulio Piacentino on May 27, 2010 at 5:23am

Hi Miguel,

I'm not able to test everything from the code posted... in case I miss your goal, could you please post a small definition of what you are trying to do? However, the code here should check if a RGB color is in any way "grayish" (pure white and pure black are included).

In the first part of the "if":
//checks if red, green and blue values are the same
(parcela[i].R == parcela[i].G && parcela[i].R == parcela[i].B)
otherwise, this code is a little more extensible:
//checks if saturation is less than 12%
(parcela[i].GetSaturation() < 0.12f)
Hope this helps,

- Giulio
___________________
giulio@mcneel.com
McNeel Europe, Barcelona

Permalink Reply by Miguel Vidal on May 27, 2010 at 6:03am

thanks for your quick reply!

good idea checking if RGB are same value, but I think I didn´t explain myself becase actually I have a grayscale image, like the one I´m attaching, I think it´s better to go for the GetSaturation method.

could you explain it a bit more? how could I get only the most "blackish grays"?

Attachments:

• vientosFav_actuacion_i.jpg, 101 KB

Permalink Reply by Giulio Piacentino on May 27, 2010 at 7:17am

Colors are expressed in RGB in the Color struct. In this case, is it possible that you are in fact looking for the darker colors in fact? You could use this code:

//checks if brightness is less than 12%
(parcela[i].GetBrightness() < 0.12f)

- Giulio
___________________
giulio@mcneel.com
McNeel Europe, Barcelona

Permalink Reply by Miguel Vidal on May 27, 2010 at 10:30am

ok, thanks giulio!