[OpenCV] Chapter01-03 Save image for using lossy and lossless compression

Save image for using lossy and lossless compression

Source Code

package main

import (
 "log"

 "gocv.io/x/gocv"
)

func main() {
 imageFilePath := "../../data/Lena.png"
 mat := gocv.IMRead(imageFilePath, gocv.IMReadAnyColor)
 if mat.Empty() {
  log.Panic("Can not read Image file : ", imageFilePath)
  return
 }

 // PNG Lossless Compression
 compressedImageFilePathForPNG := "./Lena_compressed.png"
 gocv.IMWriteWithParams(compressedImageFilePathForPNG, mat, []int{gocv.IMWritePngCompression, 0})

 saveImage := gocv.IMRead(compressedImageFilePathForPNG, gocv.IMReadAnyColor)
 if &saveImage == nil {
  log.Panic("Can not read Image file : ", compressedImageFilePathForPNG)
  return
 }

 // JPG Lossy Compression
 compressedImageFilePathForJPG := "./Lena_compressed.jpg"
 gocv.IMWriteWithParams(compressedImageFilePathForJPG, mat, []int{gocv.IMWriteJpegQuality, 0})
}

Execute Result