#!/usr/bin/env python  #encoding: utf-8 import Image  class myimg:   def __init__(self, open_file, save_file):     self.img = Image.open(open_file)     self.save_file = save_file   def Change_Size(self, percent=100, height=None, width=None):     '''''     percent：以百分比來決定大小     height， width:以指定的高、寬來決定大小     '''     if not (height and width):       width,height = self.img.size       new_img = self.img.resize((width*percent/100,height*percent/100),Image.BILINEAR)     new_img.save(self.save_file)   def Rotation(self, angle):     '''''     angle： 旋轉的度數     '''     rot_img = self.img.rotate(angle) #旋轉     rot_img.save(self.save_file)   def Save_as(self, filename):     '''''     filename: 另存為圖片格式，直接根據后綴名來     '''     self.img.save(filename)    def Draw_Something(self):     '''''         利用ImageDraw來畫圖形     '''     import ImageDraw     draw = ImageDraw.Draw(self.img)     width,height = self.img.size     draw.line(((0,0),(width-1,height-1)),fill=255) #畫直線     draw.line(((0,height-1),(width-1,0)),fill=255)     draw.arc((0,0,width-1,height-1),0,360,fill=255) #畫橢圓     self.img.save(self.save_file)   def Enhance_Something(self):     '''''         利用 ImageEnhance來增強圖片效果     '''     import ImageEnhance     brightness = ImageEnhance.Brightness(self.img)     bright_img = brightness.enhance(2.0) ##亮度增強     bright_img.save(self.save_file)     sharpness = ImageEnhance.Sharpness(self.img)     sharp_img = sharpness.enhance(7.0) #銳度增強     sharp_img.save(self.save_file)     contrast = ImageEnhance.Contrast(self.img) #對比度增強     contrast_img = contrast.enhance(2.0)      contrast_img.save(self.save_file) if __name__ == "__main__":   file_name = r"D:/test.png"   save_file = r"D:/save.png"   saveas_file = r"D:/save_as.bmp"   oimg = myimg(file_name, save_file)   oimg.Change_Size(30)   oimg.Rotation(45)   oimg.Save_as(saveas_file)   oimg.Draw_Something()   oimg.Enhance_Something()