composite - Merge image pixels using a specified algorithm
unsigned int CompositeImage( Image *canvas_image, const CompositeOperator compose, const Image *composite_image, const long x_offset, const long y_offset );
CompositeImage() returns the second image ( composite_image ) composited onto the first ( canvas_image ) at the specified offsets.
The format of the CompositeImage method is:
unsigned int CompositeImage ( Image *canvas_image, const CompositeOperator compose, const Image *composite_image, const long x_offset, const long y_offset );
A description of each parameter follows:
The image to be updated.
This operator affects how the composite is applied to the image. The default is Over. Choose from one of these operators: AddCompositeOp, AtopCompositeOp, BumpmapCompositeOp, ClearCompositeOp, ColorizeCompositeOp, CopyBlackCompositeOp, CopyBlueCompositeOp, CopyCompositeOp, CopyCyanCompositeOp, CopyGreenCompositeOp, CopyMagentaCompositeOp, CopyOpacityCompositeOp, CopyRedCompositeOp, CopyYellowCompositeOp, DarkenCompositeOp, DifferenceCompositeOp, DisplaceCompositeOp, DissolveCompositeOp, DivideCompositeOp, HueCompositeOp, InCompositeOp, LightenCompositeOp, LuminizeCompositeOp, MinusCompositeOp, ModulateCompositeOp, MultiplyCompositeOp, NoCompositeOp, OutCompositeOp, OverlayCompositeOp, PlusCompositeOp, SaturateCompositeOp, ScreenCompositeOp, SubtractCompositeOp, ThresholdCompositeOp, XorCompositeOp.
The composite image.
The column offset of the composited image.
The row offset of the composited image.