py_contour_detection.py 文件源码

def detect_contours(self):
        blurred = cv2.GaussianBlur(self.src, (self.kernel_size, self.kernel_size), self.sigma)

        # apply canny detector
        detected_edges = cv2.Canny(blurred, self.threshold, self.threshold * self.ratio, apertureSize=self.apertureSize, L2gradient=True)

        if self.use_dilate:
            kernel = np.ones((3, 3), np.uint8)
            detected_edges = cv2.morphologyEx(detected_edges, cv2.MORPH_CLOSE, kernel)

        self.contours_img, self.simple_contours, self.hierarchy = cv2.findContours(detected_edges.copy(), cv2.RETR_CCOMP, cv2.CHAIN_APPROX_TC89_KCOS)
        # pdb.gimp_message(self.hierarchy)
        _, self.full_contours, _ = cv2.findContours(detected_edges, cv2.RETR_LIST, cv2.CHAIN_APPROX_NONE)