gesture_hci.py 文件源码

def find_contour(self, img_src, Rxmin, Rymin, Rxmax, Rymax):
        cv2.rectangle(img_src, (Rxmax, Rymax), (Rxmin, Rymin), (0, 255, 0), 0)
        crop_res = img_src[Rymin: Rymax, Rxmin:Rxmax]
        grey = cv2.cvtColor(crop_res, cv2.COLOR_BGR2GRAY)

        _, thresh1 = cv2.threshold(grey, 127, 255, cv2.THRESH_BINARY + cv2.THRESH_OTSU)

        cv2.imshow('Thresh', thresh1)
        contours, hierchy = cv2.findContours(thresh1.copy(), cv2.RETR_TREE, cv2.CHAIN_APPROX_NONE)

        # draw contour on threshold image
        if len(contours) > 0:
            cv2.drawContours(thresh1, contours, -1, (0, 255, 0), 3)

        return contours, crop_res


# Check ConvexHull  and Convexity Defects