func faceDetect(i *image.Image, o *image.Image) {
cvImage := opencv.FromImage(*i)
_, err := os.Stat(faceDetectionHaarCascade)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
cascade := opencv.LoadHaarClassifierCascade(faceDetectionHaarCascade)
faces := cascade.DetectObjects(cvImage)
gc := draw2d.NewGraphicContext((*o).(*image.RGBA))
if debug == true {
fmt.Println("Faces detected:", len(faces))
}
for _, face := range faces {
if debug == true {
fmt.Printf("Face: x: %d y: %d w: %d h: %d\n", face.X(), face.Y(), face.Width(), face.Height())
}
draw2d.Ellipse(
gc,
float64(face.X()+(face.Width()/2)),
float64(face.Y()+(face.Height()/2)),
float64(face.Width()/2),
float64(face.Height())/2)
gc.SetFillColor(color.RGBA{255, 0, 0, 255})
gc.Fill()
}
}
// Paint is called when the Area needs to be redrawn.
// The part of the Area that needs to be redrawn is stored in cliprect.
// Before Paint() is called, this region is cleared with a system-defined background color.
// You MUST handle this event, and you MUST return a valid image, otherwise deadlocks and panicking will occur.
// The image returned must have the same size as rect (but does not have to have the same origin points).
func (area *canvasArea) Paint(cliprect image.Rectangle) *image.RGBA {
//area.img.SetRGBA(0, 0, color.RGBA{0, 0, 0, 255})
dc := draw2d.NewGraphicContext(area.img)
dc.Save()
dc.SetFillColor(color.Black)
draw2d.Ellipse(dc, 16, 16, 8, 8)
dc.FillStroke()
dc.Restore()
return area.img.SubImage(cliprect).(*image.RGBA)
}
func gordon(gc draw2d.GraphicContext, x, y, w, h float64) {
h23 := (h * 2) / 3
blf := color.RGBA{0, 0, 0, 0xff}
wf := color.RGBA{0xff, 0xff, 0xff, 0xff}
nf := color.RGBA{0x8B, 0x45, 0x13, 0xff}
brf := color.RGBA{0x8B, 0x45, 0x13, 0x99}
brb := color.RGBA{0x8B, 0x45, 0x13, 0xBB}
gc.MoveTo(x, y+h)
gc.CubicCurveTo(x, y+h, x+w/2, y-h, x+w, y+h)
gc.Close()
gc.SetFillColor(brb)
gc.Fill()
draw2d.RoundRect(gc, x, y+h, x+w, y+h+h, 10, 10)
gc.Fill()
draw2d.Circle(gc, x, y+h, w/12) // left ear
gc.SetFillColor(brf)
gc.Fill()
draw2d.Circle(gc, x, y+h, w/12-10)
gc.SetFillColor(nf)
gc.Fill()
draw2d.Circle(gc, x+w, y+h, w/12) // right ear
gc.SetFillColor(brf)
gc.Fill()
draw2d.Circle(gc, x+w, y+h, w/12-10)
gc.SetFillColor(nf)
gc.Fill()
draw2d.Circle(gc, x+w/3, y+h23, w/9) // left eye
gc.SetFillColor(wf)
gc.Fill()
draw2d.Circle(gc, x+w/3+10, y+h23, w/10-10)
gc.SetFillColor(blf)
gc.Fill()
draw2d.Circle(gc, x+w/3+15, y+h23, 5)
gc.SetFillColor(wf)
gc.Fill()
draw2d.Circle(gc, x+w-w/3, y+h23, w/9) // right eye
gc.Fill()
draw2d.Circle(gc, x+w-w/3+10, y+h23, w/10-10)
gc.SetFillColor(blf)
gc.Fill()
draw2d.Circle(gc, x+w-(w/3)+15, y+h23, 5)
gc.SetFillColor(wf)
gc.Fill()
gc.SetFillColor(wf)
draw2d.RoundRect(gc, x+w/2-w/8, y+h+30, x+w/2-w/8+w/8, y+h+30+w/6, 5, 5) // left tooth
gc.Fill()
draw2d.RoundRect(gc, x+w/2, y+h+30, x+w/2+w/8, y+h+30+w/6, 5, 5) // right tooth
gc.Fill()
draw2d.Ellipse(gc, x+(w/2), y+h+30, w/6, w/12) // snout
gc.SetFillColor(nf)
gc.Fill()
draw2d.Ellipse(gc, x+(w/2), y+h+10, w/10, w/12) // nose
gc.SetFillColor(blf)
gc.Fill()
}