小编Bri*_*rit的帖子

我正在尝试获取专辑封面的轮廓，但边缘检测器（Canny、Laplace）拾取了太多噪音。我不完全理解图像遮罩的工作原理，并且想在图像上放置白色遮罩，这样我只能看到黑色像素

我应用了 GaussianBlur 5x5 并将图像转换为 hsv 值。我有一系列黑色值，我已将其过滤掉。

# imported image and processing (shorthand here)
image = cv2.imread(args["image"])
blur = cv2.GaussianBlur(image, (5,5), 0)
blur_hsv = cv2.cvtColor(blur, cv2.COLOR_BGR2HSV)

# set regions of color 
boundaries = [
    # black 
    ([0,0,0],[180, 255, 40])

    #pink
    #([151, 80, 50], [174, 255, 255])   
]

# loop over the boundaries
for (lower, upper) in boundaries:
    # create NumPy arrays from the boundaries
    lower = np.array(lower, dtype = "uint8")
    upper = np.array(upper, dtype = "uint8")

    # find the colors …