#!/usr/bin/env python |
# encoding: utf-8 |
''' |
python图片转换特效 - 卡通滤镜 蜡笔特效 |
''' |
import cv2 |
import numpy as np |
class picture: |
def __init__( self ): |
self .path = 'assets/picture.jpeg' |
def hello( self ): |
return self |
def run( self ): |
# 读取原始图像 |
img = cv2.imread( self .path) |
# 定义双边滤波的数目 |
num_bilateral = 7 |
# 用高斯金字塔降低取样 |
img_color = img |
# 双边滤波处理 |
for i in range (num_bilateral): |
img_color = cv2.bilateralFilter(img_color, d = 9 , sigmaColor = 9 , sigmaSpace = 7 ) |
# 灰度图像转换 |
img_gray = cv2.cvtColor(img, cv2.COLOR_RGB2GRAY) |
# 中值滤波处理 |
img_blur = cv2.medianBlur(img_gray, 7 ) |
# 边缘检测及自适应阈值化处理 |
img_edge = cv2.adaptiveThreshold(img_blur, 255 , |
cv2.ADAPTIVE_THRESH_MEAN_C, |
cv2.THRESH_BINARY, |
blockSize = 9 , |
C = 2 ) |
# 转换回彩色图像 |
img_edge = cv2.cvtColor(img_edge, cv2.COLOR_GRAY2RGB) |
# 与运算 |
img_cartoon = cv2.bitwise_and(img_color, img_edge) |
# 显示图像 |
cv2.imshow( 'src' , img) |
cv2.imshow( 'dst' , img_cartoon) |
cv2.waitKey() |
cv2.destroyAllWindows() |
if __name__ = = '__main__' : |
picture().hello().run() |