Instance Method

HEIFRepresentationOfImage:format:colorSpace:options:

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

Declaration

- (NSData *)HEIFRepresentationOfImage:(CIImage *)image format:(CIFormat)format colorSpace:(CGColorSpaceRef)colorSpace options:(NSDictionary<CIImageRepresentationOption, id> *)options;

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 kCGColorSpaceModelRGB or kCGColorSpaceModelMonochrome model and must be compatible with the specified pixel format.

options

Return Value

A data representation of the rendered image in HEIF 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 imageByClampingToExtent method.

See Also

Rendering Images for Data or File Export

- TIFFRepresentationOfImage:format:colorSpace:options:

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

- JPEGRepresentationOfImage:colorSpace:options:

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

- PNGRepresentationOfImage:format:colorSpace:options:

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

- writeTIFFRepresentationOfImage:toURL:format:colorSpace:options:error:

Renders the image and exports the resulting image data as a file in TIFF format.

- writeJPEGRepresentationOfImage:toURL:colorSpace:options:error:

Renders the image and exports the resulting image data as a file in JPEG format.

- writePNGRepresentationOfImage:toURL:format:colorSpace:options:error:

Renders the image and exports the resulting image data as a file in PNG format.

- writeHEIFRepresentationOfImage:toURL:format:colorSpace:options:error:

Renders the image and exports the resulting image data as a file in HEIF format.

kCIImageRepresentationAVDepthData

options dictionary key for image export methods to represent data as AVDepthData.

kCIImageRepresentationDepthImage

options dictionary key for image export methods to output depth data.

kCIImageRepresentationDisparityImage

options dictionary key for image export methods to output disparity data.