package producer

import (
	"fmt"

	"gocv.io/x/gocv"
)

// https://medium.com/radix-ai-blog/banishing-the-jitters-stabilizing-satellite-imagery-with-opencvs-phase-correlation-3ba2dc6ac096

// tackle the brightness and contrast problem
// by performing phase correlation on detected
// edges instead of the raw image

func FindEdges(img0 gocv.Mat) gocv.Mat {
	fmt.Println(img0.Cols(), img0.Rows(), img0.Type().String())
	dst8 := gocv.NewMatWithSize(img0.Rows(), img0.Cols(), gocv.MatTypeCV8U)
	defer dst8.Close()
	gocv.Normalize(img0, &dst8, 0, 255, gocv.NormMinMax)
	dst8.ConvertTo(&dst8, gocv.MatTypeCV8U)
	dstEdge := gocv.NewMat()
	gocv.Canny(dst8, &dstEdge, 10, 100)
	dstEdge.ConvertTo(&dstEdge, gocv.MatTypeCV16U)
	return dstEdge
}