hi
if you are using bitmap, use an integer array to store the bitmap.
use bitmap.getPixel() to get the corresponding bitmap in integer array. By
using bitwise rotation operation, we will get RGB values. (Also byte array
can be used). See the code below.
int[] pix = new int[picw * pich];
bitmap.getPixels(pix, 0, picw, 0, 0, picw, pich);
int R, G, B,Y;
for (int y = 0; y < pich; y++)
for (int x = 0; x < picw; x++)
{
int index = y * picw + x;
int R = (pix[index] >> 16) & 0xff; //bitwise shifting
int G = (pix[index] >> 8) & 0xff;
int B = pix[index] & 0xff;
//R,G.B - Red, Green, Blue
//to restore the values after RGB modification, use //next
statement
pix[index] = 0xff000000 | (R << 16) | (G << 8) | B;
}
Thanks and Regards,
Andarena Vootog
Vootog Information Systems <http://www.vootog.com> Pvt Ltd.
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