Python 读取数据

将一个文件夹下面的图像和对应的pts读进来，然后把pts文件里面的数据读入一个数组，然后画到图像上：

# -*- coding:utf- -*-

"""

测试数据样例

"""

import os

import cv2

list_dir = [

            "/Users/anitafang/Downloads/Datasets/jiaozheng/2017sdm/SDM/001/",

            "/Users/anitafang/Downloads/Datasets/jiaozheng/2017sdm/SDM/002/",

            "/Users/anitafang/Downloads/Datasets/jiaozheng/2017sdm/SDM/003/",

            "/Users/anitafang/Downloads/Datasets/jiaozheng/2017sdm/SDM/004/",

            "/Users/anitafang/Downloads/Datasets/jiaozheng/2017sdm/SDM/005/"

            ]

def readLmk(fileName):

    landmarks = []

    if not os.path.exists(fileName):

        return landmarks

    else:

        fp = open(fileName)

        i =

        for line in fp.xreadlines():

            #print line.strip("\n")

            TT = line.strip("\n")

            if i> and i<:

                # print TT

                TT_temp = TT.split(" ")

                x = int(float(TT_temp[]))

                y = int(float(TT_temp[].strip("\r")))

                landmarks.append((x,y))

            i +=

    return landmarks

def main():

    for temp in list_dir:

        for dirpath,dirnames,filenames in os.walk(temp):

            for file in filenames:

                if file.split('.')[] not in ['jpg','png']:

                    continue

                print file

                fullpath = os.path.join(temp,file)

                ptsFile = temp + ""+file.split('.')[] + ".pts"

                # 读取图片

                image = cv2.imread(fullpath)

                # 读取对应的pts文件

                landmarks = readLmk(ptsFile)

                for point in landmarks:

                    cv2.circle(image,point,,(,,))

                width = image.shape[]

                height = image.shape[]

                print (width,height)

                if width > :

                    # 归一化到1000

                    image = cv2.resize(image,(,height*/width))

                cv2.imshow("WW",image)

                cv2.waitKey()

                input = raw_input('请输入: ')

                if input == " ":

                    print ("copy正确的数据源")

                    newpath="/Users/anitafang/Downloads/Datasets/jiaozheng/2017sdm/SDM2/001/"

                    cmd = "cp " + fullpath + " " + ptsFile+ " "+ newpath

                    print cmd

                    os.system(cmd)

if __name__ == '__main__':

    main()

讲一下Python按行读取文件内容：

 filename = "/Users/anitafang/Downloads/Datasets/jiaozheng/annot/sdm/001/annot/"+cnt+".pts"

        f1 = open(filename)

        print(filename)

        line_nu =

        for line in f1.xreadlines():

            if line_nu >  and line_nu<:

                # print(line)

                linestr = line.strip()

                # print(linestr)

                linestrlist = linestr.split("\t")

                # print(linestrlist)

                # linelist = [int(i) for i in linestrlist]

                # print(linelist)

            line_nu +=