Function

vImageConvert_BGRAFFFFtoRGBFFF(_:_:_:)

Converts a four-channel BGRAFFFF image to a three-channel RGBFFF image by removing the alpha channel.

Declaration

func vImageConvert_BGRAFFFFtoRGBFFF(_ src: UnsafePointer<vImage_Buffer>!, _ dest: UnsafePointer<vImage_Buffer>!, _ flags: vImage_Flags) -> vImage_Error

Parameters

src

A pointer to a vImage buffer structure that contains the source image whose data you want to convert.

dest

A pointer to a vImage buffer data structure. You're responsible for filling out the height, width, and rowBytes fields of this structure, and for allocating a data buffer of the appropriate size. On return, the data buffer this structure points to contains the destination image data. When you no longer need the data buffer, you must deallocate the memory.

flags

The options to use when performing the operation. If you plan to perform your own tiling or use multithreading, pass kvImageDoNotTile.

Return Value

kvImageNoError; otherwise, one of the error codes described in Data Types and Constants.

Discussion

The red, green, and blue channels are simply copied. This function can be used in place.