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# Module composite Methods

## CompositeImageChannel

CompositeImageChannel() returns the second image composited onto the first at the specified offset, using the specified composite method.

The format of the CompositeImageChannel method is:

      MagickBooleanType CompositeImage(Image *image,
        const CompositeOperator compose,Image *composite_image,
        const ssize_t x_offset,const ssize_t y_offset)
      MagickBooleanType CompositeImageChannel(Image *image,
        const ChannelType channel,const CompositeOperator compose,
        Image *composite_image,const ssize_t x_offset,const ssize_t y_offset)

A description of each parameter follows:

##### image

the destination image, modified by he composition

##### channel

the channel.

##### compose

This operator affects how the composite is applied to the image. The operators and how they are utilized are listed here http://www.w3.org/TR/SVG12/#compositing.

##### composite_image

the composite (source) image.

##### x_offset

the column offset of the composited image.

##### y_offset

the row offset of the composited image.

Extra Controls from Image meta-data in 'composite_image' (artifacts)

o "compose:args" A string containing extra numerical arguments for specific compose methods, generally expressed as a 'geometry' or a comma separated list of numbers.

Compose methods needing such arguments include "BlendCompositeOp" and "DisplaceCompositeOp".

o "compose:outside-overlay" Modify how the composition is to effect areas not directly covered by the 'composite_image' at the offset given. Normally this is dependant on the 'compose' method, especially Duff-Porter methods.

If set to "false" then disable all normal handling of pixels not covered by the composite_image. Typically used for repeated tiling of the composite_image by the calling API.

Previous to IM v6.5.3-3 this was called "modify-outside-overlay"

## TextureImage

TextureImage() repeatedly tiles the texture image across and down the image canvas.

The format of the TextureImage method is:

      MagickBooleanType TextureImage(Image *image,const Image *texture)

A description of each parameter follows:

##### image

the image.

##### texture

This image is the texture to layer on the background.

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