Contents

init(planarBuffers:)

Creates a 4-channel, 8-bit-per-channel interleaved buffer from four 32-bit planar buffers.

Declaration

init(planarBuffers: [vImage.PixelBuffer<vImage.PlanarF>])

Parameters

  • planarBuffers:

    An array that contains four 32-bit planar buffers.

Discussion

This function treats floating point pixels represented by the range 0 ... 1 as the UInt8 range 0 ... 255.

Use this function to interleave four discrete planar buffers. For example, the following code creates a four-channel interleaved buffer from four planar buffers:

let planar0 = vImage.PixelBuffer<vImage.PlanarF>(
    pixelValues: [Float(1.0 / 17)],
    size: vImage.Size(width: 1, height: 1))

let planar1 = vImage.PixelBuffer<vImage.PlanarF>(
    pixelValues: [Float(1.0 / 15)],
    size: vImage.Size(width: 1, height: 1))

let planar2 = vImage.PixelBuffer<vImage.PlanarF>(
    pixelValues: [Float(1.0 / 5)],
    size: vImage.Size(width: 1, height: 1))

let planar3 = vImage.PixelBuffer<vImage.PlanarF>(
    pixelValues: [Float(1.0 / 3)],
    size: vImage.Size(width: 1, height: 1))

let interleaved = vImage.PixelBuffer<vImage.Interleaved8x4>(
    planarBuffers: [planar0, planar1, planar2, planar3])

// Prints "[15, 17, 51, 85]"
// = [255 / 17, 255 / 15, 255 / 5, 255 / 3]
print(interleaved.array)

See Also

Creating an interleaved buffer from another buffer