Gocv split color channel

gocv Split picture color channel

Open the window

window := gocv.NewWindow("Hello")

Set window mode adaptation

window.SetWindowProperty(gocv.WindowPropertyAutosize,gocv.WindowAutosize)

Read the picture

read := gocv.IMRead("image/front.jpg", gocv.IMReadColor)

View picture type

fmt.Println(read.Type())

Split color channel （ After the image is split 3 The channels are BGR）

var rgbChan1 []gocv.Mat
bgrChan := gocv.Split(read)

The color of each channel after image splitting

//blue:= bgrChan[0]
green := bgrChan[1]
//red := bgrChan[2]

New black picture

back_ch := gocv.Zeros(read.Rows(),read.Cols(),gocv.MatTypeCV8UC1)

Combine this channel with the black picture 3 Channel picture

rgbChan1 = append(rgbChan1,back_ch)
rgbChan1 = append(rgbChan1,green)
rgbChan1 = append(rgbChan1,back_ch)

establish 3 Channel new picture

image := gocv.NewMatWithSize(read.Rows(),read.Cols(),gocv.MatTypeCV8UC3)

Combine the above channels with pictures and show

gocv.Merge(rgbChan1,&image)
window.IMShow(image)
window.WaitKey(0)