go/src/image/ycbcr.go

type YCbCrSubsampleRatio …

const YCbCrSubsampleRatio444 …

const YCbCrSubsampleRatio422 …

const YCbCrSubsampleRatio420 …

const YCbCrSubsampleRatio440 …

const YCbCrSubsampleRatio411 …

const YCbCrSubsampleRatio410 …

func (s YCbCrSubsampleRatio) String() string { … }

type YCbCr …

func (p *YCbCr) ColorModel() color.Model { … }

func (p *YCbCr) Bounds() Rectangle { … }

func (p *YCbCr) At(x, y int) color.Color { … }

func (p *YCbCr) RGBA64At(x, y int) color.RGBA64 { … }

func (p *YCbCr) YCbCrAt(x, y int) color.YCbCr { … }

// YOffset returns the index of the first element of Y that corresponds to
// the pixel at (x, y).
func (p *YCbCr) YOffset(x, y int) int { … }

// COffset returns the index of the first element of Cb or Cr that corresponds
// to the pixel at (x, y).
func (p *YCbCr) COffset(x, y int) int { … }

// SubImage returns an image representing the portion of the image p visible
// through r. The returned value shares pixels with the original image.
func (p *YCbCr) SubImage(r Rectangle) Image { … }

func (p *YCbCr) Opaque() bool { … }

func yCbCrSize(r Rectangle, subsampleRatio YCbCrSubsampleRatio) (w, h, cw, ch int) { … }

// NewYCbCr returns a new YCbCr image with the given bounds and subsample
// ratio.
func NewYCbCr(r Rectangle, subsampleRatio YCbCrSubsampleRatio) *YCbCr { … }

type NYCbCrA …

func (p *NYCbCrA) ColorModel() color.Model { … }

func (p *NYCbCrA) At(x, y int) color.Color { … }

func (p *NYCbCrA) RGBA64At(x, y int) color.RGBA64 { … }

func (p *NYCbCrA) NYCbCrAAt(x, y int) color.NYCbCrA { … }

// AOffset returns the index of the first element of A that corresponds to the
// pixel at (x, y).
func (p *NYCbCrA) AOffset(x, y int) int { … }

// SubImage returns an image representing the portion of the image p visible
// through r. The returned value shares pixels with the original image.
func (p *NYCbCrA) SubImage(r Rectangle) Image { … }

// Opaque scans the entire image and reports whether it is fully opaque.
func (p *NYCbCrA) Opaque() bool { … }

// NewNYCbCrA returns a new [NYCbCrA] image with the given bounds and subsample
// ratio.
func NewNYCbCrA(r Rectangle, subsampleRatio YCbCrSubsampleRatio) *NYCbCrA { … }