python處理.seq文件

# Deal with .seq format for video sequence
# Author: Kaij
# The .seq file is combined with images,
# so I split the file into several images with the image prefix 
# "\xFF\xD8\xFF\xE0\x00\x10\x4A\x46\x49\x46".

import os.path
import fnmatch
import shutil

def open_save(file,savepath):
    # read .seq file, and save the images into the savepath
    
    f = open(file,'rb')
    string = str(f.read())
    splitstring = "\xFF\xD8\xFF\xE0\x00\x10\x4A\x46\x49\x46"
    # split .seq file into segment with the image prefix
    strlist=string.split(splitstring)
    f.close()
    count = 0
    # delete the image folder path if it exists
    if os.path.exists(savepath):
        shutil.rmtree(savepath)
    # create the image folder path
    if not os.path.exists(savepath):
        os.mkdir(savepath)
    # deal with file segment, every segment is an image except the first one
    for img in strlist:
        filename = str(count)+'.jpg'
        filenamewithpath=os.path.join(savepath, filename)
        # abandon the first one, which is filled with .seq header
        if count > 0:
            i=open(filenamewithpath,'wb+')
            i.write(splitstring)
            i.write(img)
            i.close()
        count += 1

if __name__=="__main__":
    rootdir = "D:\\Data\\feifei"
    # walk in the rootdir, take down the .seq filename and filepath
    for parent, dirnames, filenames in os.walk(rootdir):
        for filename in filenames:
            # check .seq file with suffix
            if fnmatch.fnmatch(filename,'*.seq'):
                # take down the filename with path of .seq file
                thefilename = os.path.join(parent, filename)
                # create the image folder by combining .seq file path with .seq filename
                thesavepath = parent+'\\'+filename.split('.')[0]
                print "Filename=" + thefilename
                print "Savepath=" + thesavepath
                open_save(thefilename,thesavepath)

　　先貼出代碼，最近作實驗要用到加州理工的行人數據庫，下載一看，是把圖像按照二進制數據形式存儲爲.seq文件，沒辦法，找到一個哥們寫的用python處理seq文件，將數據轉換爲.jpg圖像。代碼直接可用，只須要把文件搜索目錄「rootdir」改成你本身文件的目錄就OK了