Structureswift-png 4.4.5PNG
SuggestedPalette
A suggested image palette.
PNG.SuggestedPalette.swift:9struct SuggestedPaletteThis type models the information stored in an sPLT chunk. It should not be confused with the suggested palette stored in the color Format of an RGB, BGR, RGBA, or BGRA image.
See also
View members
Hide members
This section is hidden by default because it contains too many (14) members.
struct MetadataThe metadata in a PNG image.
struct HeaderAn image header.
struct BackgroundA background descriptor.
struct PaletteAn image palette.
struct TransparencyA transparency descriptor.
struct ChromaticityA chromaticity descriptor.
struct ColorProfileAn embedded color profile.
enum ColorRenderingA color rendering mode.
struct GammaA gamma descriptor.
struct HistogramA palette frequency histogram.
struct PhysicalDimensionsA physical dimensions descriptor.
struct SignificantBitsA color precision descriptor.
struct TextA text comment.
struct TimeModifiedAn image modification time.
Other members in extension
View members
Hide members
This section is hidden by default because it contains too many (37) members.
Protocols
protocol BytestreamDestinationA destination bytestream.
protocol BytestreamSourceA source bytestream.
protocol Color<Aggregate>A color target.
protocol ErrorFunctionality common to all library error types.
Types
struct ChunkA chunk type identifier.
struct ContextA decoding context.
enum DecodingErrorA decoding error.
enum FormatA color format.
enum FormattingErrorA formatting error.
struct ImageA rectangular image.
struct LayoutAn image layout.
enum LexingErrorA lexing error.
enum ParsingErrorA parsing error.
struct PercentmilleA rational percentmille value.
struct RGBA<T>An RGBA color target.
enum StandardA PNG standard.
struct VA<T>A grayscale-alpha color target.
Show obsolete interfaces (2)
Hide obsolete interfaces
enum BytestreamA namespace for bytestream utilities.
enum DataA namespace containing the
Imagetype.
Type members
static func convolve<A, T, C>([UInt8], dereference: (Int) -> A, kernel: (T) -> C) -> [C] Converts an image data buffer to a pixel array, using the given pixel kernel and dereferencing function.
static func convolve<A, T, C>([UInt8], dereference: (Int) -> (A, A), kernel: ((T, T)) -> C) -> [C] Converts an image data buffer to a pixel array, using the given pixel kernel and dereferencing function.
static func convolve<A, T, C>([UInt8], dereference: (Int) -> (A, A, A), kernel: ((T, T, T)) -> C) -> [C] Converts an image data buffer to a pixel array, using the given pixel kernel and dereferencing function.
static func convolve<A, T, C>([UInt8], dereference: (Int) -> (A, A, A, A), kernel: ((T, T, T, T)) -> C) -> [C] Converts an image data buffer to a pixel array, using the given pixel kernel and dereferencing function.
static func convolve<A, T, C>([UInt8], of: A.Type, depth: Int, kernel: ((T, T, T, T)) -> C) -> [C] Converts an image data buffer to a pixel array, using the given pixel kernel.
static func convolve<A, T, C>([UInt8], of: A.Type, depth: Int, kernel: ((T, T, T), (A, A, A)) -> C) -> [C] Converts an image data buffer to a pixel array, using the given pixel kernel.
static func convolve<A, T, C>([UInt8], of: A.Type, depth: Int, kernel: ((T, T)) -> C) -> [C] Converts an image data buffer to a pixel array, using the given pixel kernel.
static func convolve<A, T, C>([UInt8], of: A.Type, depth: Int, kernel: (T, A) -> C) -> [C] Converts an image data buffer to a pixel array, using the given pixel kernel.
static func deconvolve<A, T, C>([C], as: A.Type, depth: Int, kernel: (C) -> (T, T, T, T)) -> [UInt8] Converts a pixel array to an image data buffer, using the given pixel kernel.
static func deconvolve<A, T, C>([C], as: A.Type, depth: Int, kernel: (C) -> (T, T, T)) -> [UInt8] Converts a pixel array to an image data buffer, using the given pixel kernel.
static func deconvolve<A, T, C>([C], as: A.Type, depth: Int, kernel: (C) -> (T, T)) -> [UInt8] Converts a pixel array to an image data buffer, using the given pixel kernel.
static func deconvolve<A, T, C>([C], as: A.Type, depth: Int, kernel: (C) -> T) -> [UInt8] Converts a pixel array to an image data buffer, using the given pixel kernel.
static func deconvolve<A, T, C>([C], reference: (A) -> Int, kernel: (C) -> T) -> [UInt8] Converts a pixel array to an image data buffer, using the given pixel kernel and referencing function.
static func deconvolve<A, T, C>([C], reference: ((A, A)) -> Int, kernel: (C) -> (T, T)) -> [UInt8] Converts a pixel array to an image data buffer, using the given pixel kernel and referencing function.
static func deconvolve<A, T, C>([C], reference: ((A, A, A)) -> Int, kernel: (C) -> (T, T, T)) -> [UInt8] Converts a pixel array to an image data buffer, using the given pixel kernel and referencing function.
static func deconvolve<A, T, C>([C], reference: ((A, A, A, A)) -> Int, kernel: (C) -> (T, T, T, T)) -> [UInt8] Converts a pixel array to an image data buffer, using the given pixel kernel and referencing function.
static func premultiply<T>(T, alpha: T) -> T Premultiplies a color component with an alpha value.
static func straighten<T>(T, alpha: T) -> T Straightens a premultiplied color component given an alpha value.
Citizens in PNG
Types
enum EntriesA variant array of palette colors and frequencies.
Type members
init(name: String, entries: Entries) Creates a suggested palette.
init(parsing: [UInt8]) throws Creates a suggested palette by parsing the given chunk data.
Instance members
var entries: EntriesThe colors in this suggested palette, and their frequencies.
let name: StringThe name of this suggested palette.
var serialized: [UInt8]Encodes this suggested palette as the contents of an
sPLTchunk.