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Hi, Can you let me know which pixel format do you use and what kind of merge operation you want. Give an example for better understanding

Try this code: ------------------------------ // // source buffer for blending #1 // Pixel16* pic_1 = ... // (imageWidth * imageHeight * 2) bytes allocated. RGB565; // source buffer for blending #2 // Pixel16* pic_2 = ... // (imageWidth * imageHeight * 2) bytes allocated. RGB565; // destination (blending result stored) // Pixel16* pic_3 = ... // (imageWidth * imageHeight * 2) bytes allocated. RGB565; // // Image size for testing: 350 x 500 // typedef unsigned short Pixel16; typedef unsigned long Pixel32; int imageWidth = 350; int imageHeight = 500; int imagePpl = imageWidth; for (int y = 0; y < imageHeight; y++) { for (int x = 0; x < imageWidth; x++) { int offset = y * imagePpl + x; // extract color components of source#1 (RGB565) Pixel32 r1 = Pixel32(pic_1[offset] & 0xF800); Pixel32 g1 = Pixel32(pic_1[offset] & 0x07E0); Pixel32 b1 = Pixel32(pic_1[offset] & 0x001F); // extract color components of source#2 (RGB565) Pixel32 r2 = Pixel32(pic_2[offset] & 0xF800); Pixel32 g2 = Pixel32(pic_2[offset] & 0x07E0); Pixel32 b2 = Pixel32(pic_2[offset] & 0x001F); // blend two sources (50% blending) Pixel32 r3 = (r1 + r2) >> 1; Pixel32 g3 = (g1 + g2) >> 1; Pixel32 b3 = (b1 + b2) >> 1; // composite each component to make RGB565 pic_3[offset] = (r3 & 0xF800) | (g3 & 0x07E0) | (b3 & 0x001F); } }