gray14

func AGCLinear ¶

func AGCLinear(i *image.Gray16) *image.Gray

AGCLinear reduces the dynamic range of a 14 bits down to 8 bits very naively without gamma.

func Diff ¶

func Diff(a, b *image.Gray16) *image.Gray

Diff encodes the difference in the image as a 8 bit image centered at 128.

func Equal ¶

func Equal(a, b *image.Gray16) bool

Equal returns true if the two frames are equal.

func Max ¶

func Max(i *image.Gray16) uint16

Max returns the highest intensity pixel of the image.

func Min ¶

func Min(i *image.Gray16) uint16

Min returns the lowest intensity pixel of the image.

Ignores pixels of less than 100 in intensity.

func PaletteGray ¶

func PaletteGray(vertical bool) *image.Gray

PaletteGray returns a gray palette.

func PaletteRGB ¶

func PaletteRGB(vertical bool) *image.NRGBA

PaletteRGB returns the default colorful palette.

func PseudoColor ¶

func PseudoColor(i *image.Gray16) *image.NRGBA

PseudoColor reduces the dynamic range of a 14 bits down to RGB. It doesn't apply AGC.

func ToRGB ¶

func ToRGB(intensity uint16) color.NRGBA

ToRGB converts the image into a RGB with pseudo-colors.

Uses 9bits long palette (512) centered around 8192 for a total range of 512. TODO(maruel): Confirm it's real. With room temperature of 20C° and precision per unit of 0.025°K, range is 512*0.025 = 12.8. (?)