finger_recongize.py 文件源码

def matchTemplate(img_full, img_template, meth):
    w, h = img_template.shape[::-1]
    img = img_full.copy()

    # Apply template Matching
    method = eval(meth)
    res = cv2.matchTemplate(img,img_template,method)
    min_val, max_val, min_loc, max_loc = cv2.minMaxLoc(res)

    # If the method is TM_SQDIFF or TM_SQDIFF_NORMED, take minimum
    if method in [cv2.TM_SQDIFF, cv2.TM_SQDIFF_NORMED]:
        top_left = min_loc
    else:
        top_left = max_loc
    bottom_right = (top_left[0] + w, top_left[1] + h)
    return [top_left, bottom_right]