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[OpenCV] Chapter01-02 Transform image size and flip

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OpenCV] Chapter02-01 Manipulating matrices creating, filling, accessing elements, ROIs

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Manipulating matrices creating, filling, accessing elements, ROIs Source Code package main import ( "gocv.io/x/gocv" "log" ) const ( WIDTH = 480 HEIGHT = 640 CHANNEL = 3 ) type Matrix []uint8 func main() { matrix := make(Matrix, WIDTH*HEIGHT*CHANNEL) // white matrix.changeColor(255, 255, 255) mat, err := gocv.NewMatFromBytes(HEIGHT, WIDTH, gocv.MatTypeCV8UC3, matrix) if err != nil { log.Panic("Can not change bytes to Mat") return } windowForWhite := gocv.NewWindow("White") defer windowForWhite.Close() windowForWhite.IMShow(mat) // red matrix.changeColor(0, 0, 255) mat, err = gocv.NewMatFromBytes(HEIGHT, WIDTH, gocv.MatTypeCV8UC3, matrix) if err != nil { log.Panic("Can not change bytes to Mat") return } windowForRed := gocv.NewWindow("Red") defer windowForRed.Close() windowForRed.IMShow(mat) // black matrix.changeColor(0, 0, 0) mat, err = gocv.NewMatFromBytes(HEIGHT, WIDTH, go...
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[OpenCV] What is gocv?

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GoCV           The GoCV package provides Go language bindings for the  OpenCV 4  computer vision library. The GoCV package supports the latest releases of Go and OpenCV (v4.0.0) on Linux, macOS, and Windows. We intend to make the Go language a "first-class" client compatible with the latest developments in the OpenCV ecosystem. GoCV also supports  Intel OpenVINO . Check out the  OpenVINO README  for more info on how to use GoCV with the Intel OpenVINO toolkit. How to use Hello, video This example opens a video capture device using device "0", reads frames, and shows the video in a GUI window: package main import ( " gocv.io/x/gocv " ) func main () { webcam , _ := gocv. OpenVideoCapture ( 0 ) window := gocv. NewWindow ( " Hello " ) img := gocv. NewMat () for { webcam. Read (&img) window. IMShow (img) window. WaitKey ( 1 ) } } Face detect This is a more complete example that opens a v...
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