python教程分享Opencv马赛克和毛玻璃效果与图片融合的实现

  import cv2      # 马赛克效果  img = cv2.imread(filename='../anqila21.jpg',flags=1)  imginfo = img.shape  height = imginfo[0]  width = imginfo[1]  flag = 2   # 系数，系数越小，马赛克的效果越不明显  for m in range(26,height):      for n in range(140,880):          if m%flag==0 and n%flag==0:              for i in range(0,flag):                  for j in range(0,flag):                      (b,g,r) = img[m,n]                      img[i+m,j+n] = (b,g,r)    cv2.imshow('dst',img)  cv2.waitkey(0)  

  import cv2  import numpy as np  import random    # 毛玻璃效果  img = cv2.imread(filename='../anqila21.jpg',flags=1)  imginfo = img.shape  height = imginfo[0]  width = imginfo[1]  dst = np.zeros((height,width,3),np.uint8)  for i in range(height-8):      for j in range(width-8):          index = int(random.random()*8)  # 生成0-8之间的随机数(不包括8)          dst[i, j] = img[i+index,j+index]  cv2.imshow('dst',dst)  cv2.waitkey(0)  

  import cv2    img_1 = cv2.imread(filename='../anqila21.jpg',flags=1)  img_2 = cv2.imread(filename='../huanghe.jpg',flags=1)  imginfo = img_1.shape  height = imginfo[0]  width = imginfo[1]  # roi  roi = 0.5  dst = cv2.addweighted(img_1,roi,img_2,(1-roi),0)  cv2.imshow('dst',dst)  cv2.waitkey(0)  

  import cv2  import numpy as np    img_1 = cv2.imread(filename='../anqila21.jpg',flags=1)  img_2 = cv2.imread(filename='../huanghe.jpg',flags=1)  imginfo = img_1.shape  height = imginfo[0]  width = imginfo[1]  # roi  roi = 0.5  dst = np.zeros((height,width,3),np.uint8)    for i in range(height):      for j in range(width):          (b1,g1,r1) = img_1[i,j]          (b2,g2,r2) = img_2[i,j]          dst[i,j] = (int(b1*roi+b2*(1-roi)),int(g1*roi+g2*(1-roi)),int(r1*roi+r2*(1-roi)))    cv2.imshow('dst',dst)  cv2.waitkey(0)