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#!/usr/bin/env python
#-*- coding: utf-8 -*-
import cv2
import numpy as npfn="test2.jpg"if __name__ == '__main__':print 'http://blog.csdn.net/myhaspl'print 'myhaspl@qq.com'printprint 'loading %s ...' % fnprint '正在处理中',img = cv2.imread(fn)w=img.shape[1]h=img.shape[0] ii=0#生成底片b, g, r = cv2.split(img)b=255-bg=255-gr=255-r#直接通过索引改变色彩分量 img[:,:,0]=bimg[:,:,1]=gimg[:,:,2]=r#加上水印cv2.putText(img,"http://blog.csdn.net/myhaspl", (20,20),cv2.FONT_HERSHEY_PLAIN, 2.0, (0, 0, 0), thickness = 2)cv2.putText(img,"code by myhaspl:myhaspl@qq.com", (20,100),cv2.FONT_HERSHEY_PLAIN, 2.0, (0, 0, 0), thickness = 2) cv2.namedWindow('img') cv2.imshow('img', img)cv2.waitKey()cv2.destroyAllWindows()
opencv底片效果和加上水印
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