Python实现处理图片水印的方法详解

image = cv2.imread("watermark.png")
 
HSV = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)

mask = cv2.inRange(HSV, (0, 0, 195), (0, 0, 255))
cv2.imshow("mask", mask)

import cv2
 
image = cv2.imread(r"watermark.png")
 
HSV = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)
# cv2.imshow("HSV", HSV)
 
mask = cv2.inRange(HSV, (0, 0, 195), (0, 0, 255))
cv2.imshow("mask", mask)
 
cv2.imwrite('watermark-result.png', mask)
cv2.waiTKEy(0)

import cv2
 
# 读取图片
image = cv2.imread(r"./images/screenshot/target_open.jpg")
 
# 转为HSV图
HSV = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)
 
# 定义一个鼠标左键按下去的事件
def getpos(event, x, y, flags, param):
    if event == cv2.EVENT_LBUTTONDOWN:
        print(HSV[y, x])
 
# cv2.imshow('image', image)
cv2.imshow("imageHSV", HSV)
 
cv2.setMouseCallback("imageHSV", getpos)
cv2.waitKey(0)