CIBlendWithAlphaMask - emcconville/cif GitHub Wiki

CIBlendWithAlphaMask

Uses values from a grayscale mask to interpolate between an image and the background. When a mask alpha value is 0.0, the result is the background. When the mask alpha value is 1.0, the result is the image.

• -inputMaskImage <image> : A masking image.
• -inputImage <image> : The image to use as an input image. For filters that also use a background image, this is the foreground image.
• -inputBackgroundImage <image> : The image to use as a background image.