The information used to compute the histogram channels of an image.
SDKs
- iOS 9.0+
- macOS 10.13+
- Mac Catalyst 13.0+
- tvOS 9.0+
Framework
- Metal Performance Shaders
Declaration
struct MPSImageHistogramInfo
StructureMPSImage
MPSImage
Topics
Instance Properties
var histogramSpecifies whether the histogram for the alpha channel should be computed or not.
var maxSpecifies the maximum pixel value. Any pixel value greater than this will be clipped to this value (for the purposes of histogram calculation), and assigned to the first histogram entry. This maximum value is applied to each of the four channels separately.
var minSpecifies the minimum pixel value. Any pixel value less than this will be clipped to this value (for the purposes of histogram calculation), and assigned to the first histogram entry. This minimum value is applied to each of the four channels separately.
var numberSpecifies the number of histogram entries (bins) for each channel.
See Also
Methods
init(device: MTLDevice, histogramInitializes a histogram with specific information.
func encode(to: MTLCommandEncodes the filter to a command buffer using a compute command encoder.
func histogramThe amount of space the histogram will take up in the output buffer.