Python3 圖片水平鏡像實現

# -*- coding: utf-8 -*-
"""
Created on Sun Feb  4 12:15:38 2018

@author: markli
"""
from PIL import Image;
import os;

class Mirror:
    def __init__(self):
        #self.path = path;
        self.formats = ['.png','.jpg','.jpeg','.bmp','.gif'];
    
    def ImageMirror(self,fp,savepath):
        filepath = fp;
        f_format = '';
        if(os.path.exists(filepath) == False):
            print("路徑不存在");
            return;
        f_format = os.path.splitext(filepath)[1].lower();
        if(f_format not in self.formats):
            print("圖片格式不正確");
            return;
            
        img = Image.open(filepath);
        img_pixel = img.load();
        mirror = Image.new(img.mode,img.size,"white");
        
        width, height = img.size;
        """水平鏡像轉換，遍歷每個像素點，將后列變前列"""
        for y in range(height):
            for x in range(width):
                pixel = img_pixel[width-1-x,y];
                mirror.putpixel((x,y),pixel);
        
        sp,f = os.path.splitext(savepath);
        if(f != f_format):
            savepath = sp + f_format;
        mirror.save(savepath);
    
    def TranslateAll(self,filedir,savedir):
        """
        將目標圖片集全部進行鏡像處理
        filedir 目標圖片集所在的文件夾路徑
        savedir 鏡像圖片保存的文件夾路徑
        """  
        filelist = self.Getfile(filedir);
        if(os.path.exists(savedir) == True):
            print("保存路徑已存在，請重新設定路徑");
            return;
        os.mkdir(savedir);
        for f in filelist:
            fn,ext = os.path.splitext(os.path.split(f)[1]);
            fn = fn + "mirror"; #給定鏡像圖片的名稱
            filename = fn + ext; #鏡像圖片與原圖具有相同的擴展名
            savefile = os.path.join(savedir,filename); #構造出完整的保存路徑
            self.ImageMirror(f,savefile);
    
    def Getfile(self,filedir):
        """獲得文件夾filedir目錄下所有的文件路徑"""
        filepath = [];
        if(os.path.exists(filedir) == False):
            print("路徑不存在");
            return filepath;
        if(os.path.isdir(filedir) == False):
            print("該路徑不是文件夾");
            return filepath;
        filelist = os.listdir(filedir);
        
        for f in filelist:
            f = os.path.join(filedir,f);
            if(os.path.isfile(f) == True):
                filepath.append(f);
            elif(os.path.isdir(f) == True):
                filepath.extend(self.Getfile(f));
            else:
                continue;
        return filepath;

#fp = "C:\\Users\\yangp\\Desktop\\python_b_blue.jpg";
#m = Mirror();
#savep = "C:\\Users\\yangp\\Desktop\\python_b_blue_m.jpg";
#m.ImageMirror(fp,savep);
        
filedir = "C:\\Users\\yangp\\Desktop\\mirror";
savedir = "C:\\Users\\yangp\\Desktop\\mirror2";
m = Mirror();
m.TranslateAll(filedir,savedir);