import cv2def cartoonise(picture_name):imgInput_FileName = picture_nameimgOutput_FileName = "cartoon" + picture_namenum_down = 2 #缩减像素采样的数目num_bilateral = 7 #定义双边滤波的数目img_rgb = cv2.imread(imgInput_FileName)#读取图片#用高斯金字塔降低取样img_color = img_rgb#for _ in range(num_down):# img_color = cv2.pyrDown(img_color)#重复使用小的双边滤波代替一个大的滤波for _ in range(num_bilateral):img_color = cv2.bilateralFilter(img_color,d=9,sigmaColor=9,sigmaSpace=7)#升采样图片到原始大小#for _ in range(num_down):# img_color = cv2.pyrUp(img_color)#转换为灰度并且使其产生中等的模糊img_gray = cv2.cvtColor(img_rgb, cv2.COLOR_RGB2GRAY)img_blur = cv2.medianBlur(img_gray, 7)#检测到边缘并且增强其效果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)img_cartoon = cv2.bitwise_and(img_color, img_edge)# 保存转换后的图片cv2.imwrite(imgOutput_FileName, img_cartoon)
cartoonise('shou.jpg')
