BlinkPipeline.py 文件源码

def __find_blobs(input, min_area, circularity, dark_blobs):
        """Detects groups of pixels in an image.
        Args:
            input: A numpy.ndarray.
            min_area: The minimum blob size to be found.
            circularity: The min and max circularity as a list of two numbers.
            dark_blobs: A boolean. If true looks for black. Otherwise it looks for white.
        Returns:
            A list of KeyPoint.
        """
        params = cv2.SimpleBlobDetector_Params()
        params.filterByColor = 1
        params.blobColor = (0 if dark_blobs else 255)
        params.minThreshold = 10
        params.maxThreshold = 220
        params.filterByArea = True
        params.minArea = min_area
        params.filterByCircularity = True
        params.minCircularity = circularity[0]
        params.maxCircularity = circularity[1]
        params.filterByConvexity = False
        params.filterByInertia = False
        detector = cv2.SimpleBlobDetector_create(params)
        return detector.detect(input)