descriptors.py 文件源码

def orb(img):
    """
    Calculate the ORB descriptors for an image and resizes the image
    having the larger dimension set to 640 and keeping the size relation.

    Args:
        img (BGR matrix): The image that will be used.

    Returns:
        list of floats array: The descriptors found in the image.
    """
    orb = cv2.ORB()
    kp, des = orb.detectAndCompute(img, None)
    return des