python小玩意——图片转素描

效果如下：

代码如下：

import cv2
import numpy as np
 
 
def rgb_to_sketch(src_image, dst_image):
    img_rgb = cv2.imread(src_image_name)
    img_gray = cv2.cvtColor(img_rgb, cv2.COLOR_BGR2GRAY)
    img_blur = cv2.GaussianBlur(img_gray, ksize=(21, 21), sigmaX=0, sigmaY=0)
    img_blend = cv2.divide(img_gray, img_blur, scale=255)  # 除法运算，改变的是每个像素的颜色深度
    cv2.imwrite(dst_image_name, img_blend)


    img_gray2 = cv2.medianBlur(img_gray, 5)
    img_edge = cv2.adaptiveThreshold(img_gray2, 255, cv2.ADAPTIVE_THRESH_MEAN_C,
                                     cv2.THRESH_BINARY, blockSize=3, C=2)
    cv2.imwrite(dst_image_name2, img_edge)

if __name__ == '__main__':
    src_image_name = 'photo.jpg'
    dst_image_name = 'end1.jpg'
    dst_image_name2 ='end2.jpg'
    rgb_to_sketch(1, 2)
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