go/src/image/color/ycbcr_test.go

func delta(x, y uint8) uint8 { … }

func eq(c0, c1 Color) error { … }

// TestYCbCrRoundtrip tests that a subset of RGB space can be converted to YCbCr
// and back to within 2/256 tolerance.
func TestYCbCrRoundtrip(t *testing.T) { … }

// TestYCbCrToRGBConsistency tests that calling the RGBA method (16 bit color)
// then truncating to 8 bits is equivalent to calling the YCbCrToRGB function (8
// bit color).
func TestYCbCrToRGBConsistency(t *testing.T) { … }

// TestYCbCrGray tests that YCbCr colors are a superset of Gray colors.
func TestYCbCrGray(t *testing.T) { … }

// TestNYCbCrAAlpha tests that NYCbCrA colors are a superset of Alpha colors.
func TestNYCbCrAAlpha(t *testing.T) { … }

// TestNYCbCrAYCbCr tests that NYCbCrA colors are a superset of YCbCr colors.
func TestNYCbCrAYCbCr(t *testing.T) { … }

// TestCMYKRoundtrip tests that a subset of RGB space can be converted to CMYK
// and back to within 1/256 tolerance.
func TestCMYKRoundtrip(t *testing.T) { … }

// TestCMYKToRGBConsistency tests that calling the RGBA method (16 bit color)
// then truncating to 8 bits is equivalent to calling the CMYKToRGB function (8
// bit color).
func TestCMYKToRGBConsistency(t *testing.T) { … }

// TestCMYKGray tests that CMYK colors are a superset of Gray colors.
func TestCMYKGray(t *testing.T) { … }

func TestPalette(t *testing.T) { … }

var sink8 …

var sink32 …

func BenchmarkYCbCrToRGB(b *testing.B) { … }

func BenchmarkRGBToYCbCr(b *testing.B) { … }

func BenchmarkYCbCrToRGBA(b *testing.B) { … }

func BenchmarkNYCbCrAToRGBA(b *testing.B) { … }