python3 基于 OpenCV 实现证件照背景替
换
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
import cv2
import numpy as np
img=cv2.imread('zjz.jpg')
#
缩放
rows,cols,channels = img.shape
img=cv2.resize(img,None,fx=0.5,fy=0.5)
rows,cols,channels = img.shape
cv2.imshow('img',img)
#
转换
hsv
hsv=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)