ImageGear for C and C++ on Windows v19.1 - Updated
enumIGMergeModes
API Reference Guide > Core Component API Reference > Core Component Enumerations Reference > enumIGMergeModes

Identifies the type of arithmetic operation (merge method) that is performed on the values of all intersecting pixels resulting from the merge.

For example, if you set IG_ARITH_ADD merge method, the resulting pixel values (of those pixels that intersected from the two images) equal the sum of the value of the pixel in the original image and the value of pixel in the image being merged.

Values:

IG_ARITH_ADD Img1 = Img1 + Img2
IG_ARITH_ADD_SIGN_CENTERED Img1 = Img1+ SC_Img2
IG_ARITH_AND Img1 = Img1 & Img2
IG_ARITH_DIVIDE Img1 = Img1 / Img2
IG_ARITH_MULTI Img1 = Img1 * Img2
IG_ARITH_NOT Img1 = ~Img1
IG_ARITH_OR Img1 = Img1 | Img2
IG_ARITH_OVER Img1 = Img2
IG_ARITH_SUB Img1 = Img1 - Img2
IG_ARITH_XOR Img1 = Img1 ^ Img2