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pngRepresentation(of:format:colorSpace:options:)

Renders the image and exports the resulting image data in PNG format.

Declaration

func pngRepresentation(of image: CIImage, format: CIFormat, colorSpace: CGColorSpace, options: [CIImageRepresentationOption : Any] = [:]) -> Data?

Parameters

  • image:

    The image object to render.

  • format:

    The pixel format for the output image.

  • colorSpace:

    The color space in which to render the output image. This color space must conform to either the Rgb or Monochrome model and must be compatible with the specified pixel format.

  • options:

    No options keys are supported at this time.

Return Value

A data representation of the rendered image in PNG format, or nil if the image could not be rendered.

Discussion

To render an image for export, the image’s contents must not be empty and its extent dimensions must be finite. To export after applying a filter whose output has infinite extent, see the clampedToExtent() method.

See Also

Rendering Images for Data or File Export