NotFoundException: startSize = 0 about gozxing HOT 1 OPEN

	w, h := img.Bounds().Max.X, img.Bounds().Max.Y
	img2 := image.NewRGBA(image.Rect(0, 0, w*2, h*2))
	draw.Draw(img2, image.Rect(w/2, h/2, w*3/2, h*3/2), img, image.Pt(0, 0), draw.Over)
	for y := 0; y < h*2; y++ {
		for x := 0; x < w*2; x++ {
			c := color.White
			if r, _, _, _ := img2.At(x, y).RGBA(); r > 60000 {
				c = color.Black
			}
			img2.Set(x, y, c)
		}
	}