imageutil

Documentation

Index

• func AutoThresholdTriangle(histogram [256]int) uint8
• func GrayImageHistogram(img *image.Gray) (histogram [256]int)
• func ImgToBinary(i image.Image, threshold uint8) *image.Gray
• func ImgToGray(i image.Image) *image.Gray
• func IsGrayImgBlackAndWhite(i *image.Gray) bool

Functions

func AutoThresholdTriangle

func AutoThresholdTriangle(histogram [256]int) uint8

AutoThresholdTriangle is a function that returns threshold value on the base of provided histogram. It is calculated using triangle method.

func GrayImageHistogram

func GrayImageHistogram(img *image.Gray) (histogram [256]int)

GrayImageHistogram gets histogram for the provided Gray 'img'.

func ImgToBinary

func ImgToBinary(i image.Image, threshold uint8) *image.Gray

ImgToBinary gets the binary (black/white) image from the given image 'i' and provided threshold 'threshold'

func ImgToGray

func ImgToGray(i image.Image) *image.Gray

ImgToGray gets the gray-scaled image from the given 'i' image.

func IsGrayImgBlackAndWhite

func IsGrayImgBlackAndWhite(i *image.Gray) bool

IsGrayImgBlackAndWhite checks if provided gray image is BlackAndWhite - Binary image.