# Convert from RGB to HSV
hsv = cv2.cvtColor(image, cv2.COLOR_RGB2HSV)
# HSV channels
h = hsv[:,:,0]...s = hsv[:,:,1]
v = hsv[:,:,2]
f, (ax1, ax2, ax3) = plt.subplots(1, 3, figsize=(20,10))
ax1.set_title...Now try HSV!...# Define the masked area in HSV space
mask_hsv = cv2.inRange(hsv, lower_hue, upper_hue)
# mask the image...看看这个选择结果 我们会发现几乎所有粉色气球都被选中了,由此可见 HSV 空间更擅长选泽处于不同光线下的区域