[原創]python下opencv圖像加法測試

[原創]python下opencv圖像加法測試

Author: chad
Mail: [email protected]

當兩張圖片權值係數都爲0.5時實驗結果如下:

源碼：

#!/usr/bin/env python

import cv2
import numpy as np
ph1 = "/home/chad/01.jpg"
ph2 = "/home/chad/02.jpg"


s1 = cv2.imread(ph1,0)
s2 = cv2.imread(ph2,0)

p1 = 0.5
p2 = 0.5

emptyimg = np.zeros(s1.shape,np.uint8)

def pic_add(dest,s1,s2):
    for x in range(dest.shape[0]):
        for y in range(dest.shape[1]):
                dest[x,y] = s2[x,y]*p1 + s1[x,y]*p2


pic_add(emptyimg,s1,s2)

cv2.namedWindow("s1")
cv2.namedWindow("s2")
cv2.namedWindow("result")

cv2.imshow("s1",s1)
cv2.imshow("s2",s2)
cv2.imshow("result",emptyimg)

cv2.waitKey(0)
cv2.destroyAllWindows()

上面的程序只能處理單通道灰度圖，3通道圖片處理方法如下：

#!/usr/bin/env python

import cv2
import numpy as np
ph1 = "/home/chad/test1.png"
ph2 = "/home/chad/test3.png"


s1 = cv2.imread(ph1)
s2 = cv2.imread(ph2)

p1 = 0.6
p2 = 0.4

emptyimg = np.zeros((s1.shape[0],s1.shape[1],3),np.uint8)

def pic_add(dest,s1,s2):
    for x in range(dest.shape[0]):
        for y in range(dest.shape[1]):
                dest[x,y,0] = s2[x,y,0]*p1 + s1[x,y,0]*p2
                dest[x,y,1] = s2[x,y,1]*p1 + s1[x,y,1]*p2
                dest[x,y,2] = s2[x,y,2]*p1 + s1[x,y,2]*p2


pic_add(emptyimg,s1,s2)

cv2.namedWindow("s1")
cv2.namedWindow("s2")
cv2.namedWindow("result")

cv2.imshow("s1",s1)
cv2.imshow("s2",s2)
cv2.imshow("result",emptyimg)

cv2.waitKey(0)
cv2.destroyAllWindows()