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add more example doc

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wanglei.w
2020-11-19 15:05:55 +08:00
parent 5029339c82
commit 0782179c94
3 changed files with 78 additions and 6 deletions
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10
examples/opencv.go
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@@ -62,23 +62,25 @@ func openCvProcess(xmlFile string, reader io.ReadCloser, w, h int) {
if img.Empty() {
continue
}
img2 := gocv.NewMat()
gocv.CvtColor(img, &img2, gocv.ColorBGRToRGB)
// detect faces
rects := classifier.DetectMultiScale(img)
rects := classifier.DetectMultiScale(img2)
fmt.Printf("found %d faces\n", len(rects))
// draw a rectangle around each face on the original image,
// along with text identifing as "Human"
for _, r := range rects {
gocv.Rectangle(&img, r, blue, 3)
gocv.Rectangle(&img2, r, blue, 3)
size := gocv.GetTextSize("Human", gocv.FontHersheyPlain, 1.2, 2)
pt := image.Pt(r.Min.X+(r.Min.X/2)-(size.X/2), r.Min.Y-2)
gocv.PutText(&img, "Human", pt, gocv.FontHersheyPlain, 1.2, blue, 2)
gocv.PutText(&img2, "Human", pt, gocv.FontHersheyPlain, 1.2, blue, 2)
}
// show the image in the window, and wait 1 millisecond
window.IMShow(img)
window.IMShow(img2)
if window.WaitKey(10) >= 0 {
break
}