本文实例为大家分享了python3实现证件照背景替换的具体代码，供大家参考，具体内容如下
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
import cv2import numpy as npimg=cv2.imread('zjz.jpg')#缩放rows,cols,channels = img.shapeimg=cv2.resize(img,None,fx=0.5,fy=0.5)rows,cols,channels = img.shapecv2.imshow('img',img)#转换hsvhsv=cv2.cvtColor(img,cv2.COLOR_BGR2HSV)lower_blue=np.array([78,43,46])upper_blue=np.array([110,255,255])mask = cv2.inRange(hsv, lower_blue, upper_blue)cv2.imshow('Mask', mask)#腐蚀膨胀erode=cv2.erode(mask,None,iterations=1)cv2.imshow('erode',erode)dilate=cv2.dilate(erode,None,iterations=1)cv2.imshow('dilate',dilate)#遍历替换for i in range(rows): for j in range(cols): if dilate[i,j]==255: img[i,j]=(0,0,255)#此处替换颜色，为BGR通道cv2.imshow('res',img)cv2.waitKey(0)cv2.destroyAllWindows() |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
