公司的一个项目要求把所有4096x4096的图片全部转化成2048x2048的图片,这种批量转换图片大小的软件网上很多,我的同事原来使用的美图看看的批量转换,但是稍微有点麻烦,每次还需要指定要转换的图片的输入路径和输出路径,而且每次都只能处理一个文件夹,很繁琐,于是我想到了万能的Python,然后写了一个脚本来批量处理图片,同一个根目录下的所有文件夹的子文件等的图片全部会处理掉。
代码中还加入了很多的异常捕获机制和提示,希望对大家有帮助。
备注:
1.导入了PIL库,是处理图片用的,很强大;
2.导入了win32库,是判断隐藏文件用的,我们的项目需要删除隐藏文件,不需要的可以直接找到删除。
3.导入send2trash库,是把删除的文件放进垃圾箱,而不是永久删除,这个我只是防止删除有用的文件而搞得,有点严谨了是吧,不需要的可以删掉啊。
4.我这个脚本是Python2.7编写的,但是在处理中文编码的时候非常恶心,尽管最后被我解决了,这个解决的方法,我随后会再单独写一篇,但是此刻我是建议大家不要用2.x版本的python 了。据说3.x的版本的已经解决了编码的问题。希望大家听我的建议。
- #coding=utf-8
- import sys
- import os, glob
- import platform
- import win32file,win32con
- from PIL import Image
- from send2trash import send2trash
- reload(sys)
- sys.setdefaultencoding('utf-8')
- #new_width =2048
- #width =int(raw_input("the width U want:"))
- #imgslist = glob.glob(path+'/*.*')
- ShuiPing="水平"
- ShiZhuang="矢状"
- GuanZhuang="冠状"
- def Py_Log(_string):
- print "----"+_string.decode('utf-8')+"----"
- def is_windows_system():
- return 'Windows' in platform.system()
- def is_hiden_file(file_Path):
- if is_windows_system():
- fileAttr = win32file.GetFileAttributes(file_Path)
- if fileAttr & win32con.FILE_ATTRIBUTE_HIDDEN :
- return True
- return False
- return False
- def remove_hidden_file(file_path):
- send2trash(file_path)
- print "Delete hidden file path:"+file_path
- def astrcmp(str1,str2):
- return str1.lower()==str2.lower()
- def resize_image(img_path):
- try:
- mPath, ext = os.path.splitext(img_path)
- if (astrcmp(ext,".png") or astrcmp(ext,".jpg")):
- img = Image.open(img_path)
- (width,height) = img.size
- if(width != new_width):
- new_height = int(height * new_width / width)
- out = img.resize((new_width,new_height),Image.ANTIALIAS)
- new_file_name = '%s%s' %(mPath,ext)
- out.save(new_file_name,quality=100)
- Py_Log("图片尺寸修改为:"+str(new_width))
- else:
- Py_Log("图片尺寸正确,未修改")
- else:
- Py_Log("非图片格式")
- except Exception,e:
- print e
- #改变图片类型
- def change_img_type(img_path):
- try:
- img = Image.open(img_path)
- img.save('new_type.png')
- except Exception,e:
- print e
- #处理远程图片
- def handle_remote_img(img_url):
- try:
- request = urllib2.Request(img_url)
- img_data = urllib2.urlopen(request).read()
- img_buffer = StringIO.StringIO(img_data)
- img = Image.open(img_buffer)
- img.save('remote.jpg')
- (width,height) = img.size
- out = img.resize((200,height * 200 / width),Image.ANTIALIAS)
- out.save('remote_small.jpg')
- except Exception,e:
- print e
- def rename_forder(forder_path):
- Py_Log("------------rename_forder--------------------------")
- names = os.path.split(forder_path)
- try:
- if(unicode(ShuiPing) in unicode(names[1],'gbk')):
- os.rename(forder_path,names[0]+"\\"+"01")
- Py_Log(names[1]+"-->"+"01")
- if(unicode(ShiZhuang) in unicode(names[1],'gbk')):
- os.rename(forder_path,names[0]+"\\"+"02")
- Py_Log(names[1]+"-->"+"02")
- if(unicode(GuanZhuang) in unicode(names[1],'gbk')):
- os.rename(forder_path,names[0]+"\\"+"03")
- Py_Log(names[1]+"-->"+"03")
- except Exception,e:
- print e
- def BFS_Dir(dirPath, dirCallback = None, fileCallback = None):
- queue = []
- ret = []
- queue.append(dirPath);
- while len(queue) > 0:
- tmp = queue.pop(0)
- if(os.path.isdir(tmp)):
- ret.append(tmp)
- for item in os.listdir(tmp):
- queue.append(os.path.join(tmp, item))
- if dirCallback:
- dirCallback(tmp)
- elif(os.path.isfile(tmp)):
- ret.append(tmp)
- if fileCallback:
- fileCallback(tmp)
- return ret
- def DFS_Dir(dirPath, dirCallback = None, fileCallback = None):
- stack = []
- ret = []
- stack.append(dirPath);
- while len(stack) > 0:
- tmp = stack.pop(len(stack) - 1)
- if(os.path.isdir(tmp)):
- ret.append(tmp)
- for item in os.listdir(tmp):
- stack.append(os.path.join(tmp, item))
- if dirCallback:
- dirCallback(tmp)
- elif(os.path.isfile(tmp)):
- ret.append(tmp)
- if fileCallback:
- fileCallback(tmp)
- return ret
- def printDir(dirPath):
- print "dir: " + dirPath
- if(is_hiden_file(dirPath)):
- remove_hidden_file(dirPath)
- else:
- rename_forder(dirPath)
- def printFile(dirPath):
- print "file: " + dirPath
- resize_image(dirPath)
- return True
- if __name__ == '__main__':
- while True:
- path = raw_input("Path:")
- new_width =int(raw_input("the width U want:"))
- try:
- b = BFS_Dir(path , printDir, printFile)
- Py_Log ("\r\n **********\r\n"+"*********图片处理完毕*********"+"\r\n **********\r\n")
- except:
- print "Unexpected error:", sys.exc_info()
- raw_input('press enter key to rehandle')