| | |
| | | ) |
| | | |
| | | // 按尺寸去切图 |
| | | func SubImg(i protomsg.Image, x0, y0, x1, y1 int, ) []byte { |
| | | func SubImg(i protomsg.Image, x0, y0, x1, y1 int, type1 string ) []byte { |
| | | img, _ := gocv.NewMatFromBytes(int(i.Height), int(i.Width), gocv.MatTypeCV8UC3, i.Data) |
| | | rect := image.Rect(EnlargeSize(x0, y0, x1, y1, i)) |
| | | region := img.Region(rect) |
| | | bytes, _ := gocv.IMEncode(".jpg", region) |
| | | return bytes |
| | | if type1 == "face" { |
| | | rect := image.Rect(EnlargeSize(x0, y0, x1, y1, i)) |
| | | region := img.Region(rect) |
| | | bytes, _ := gocv.IMEncode(".jpg", region) |
| | | return bytes |
| | | } else { |
| | | rect := image.Rect(EnlargeSizeForCar(x0, y0, x1, y1, i)) |
| | | region := img.Region(rect) |
| | | bytes, _ := gocv.IMEncode(".jpg", region) |
| | | return bytes |
| | | } |
| | | } |
| | | |
| | | // 长宽变为一比一,每边各扩百分之20 |
| | |
| | | } |
| | | return |
| | | } |
| | | |
| | | // 每边各扩百分之20 |
| | | func EnlargeSizeForCar(x0, y0, x1, y1 int, i protomsg.Image) (int,int,int,int) { |
| | | |
| | | // 先把长宽变为一比一 |
| | | chazhi := (y1 - y0) - (x1 - x0) |
| | | x0 = x0 - chazhi/2 |
| | | if x0 < 0 { |
| | | x0 = 0 |
| | | } |
| | | x1 = x1 + chazhi/2 |
| | | if x1 > int(i.Width) { |
| | | x1 = int(i.Width) |
| | | } |
| | | return x0, y0, x1, y1 |
| | | } |