python - 从 python 脚本调用 exe

Question

我正在尝试从文件夹中读取文件并运行 colorDescriptor.exe，它与 .py 文件位于同一目录中。实际上我想要，每次它读取一个文件来计算 colorDescriptor。

我的代码如下:

import os

from os import listdir
from os.path import isfile, join
mypath1 = "/clothes/"
mypath2 = "/i386-win-vc/"
onlyfiles = [ f for f in listdir(mypath1) if isfile(join(mypath1,f)) ]
image = mypath1+f
os.popen("colorDescriptor image --detector harrislaplace --descriptor sift --output 
onlyfiles.txt ")
print image

在终端中，使用 colorDescriptor.exe 的语法例如是:

colorDescriptor image.jpg --detector harrislaplace --descriptor sift --output onlyfiles.txt

我收到错误信息:

Tue04 10:53:30,248 - [Impala.Persistency.FileSystem ] Unable to find image in path 
Tue04 10:53:30,248 - [Impala.Core.Array.ReadFile ] Don't know how to read 
Tue04 10:53:30,248 - [Sandbox.koen.mainColorDescriptor ] [ERROR] Could not read input   
file: is it really a valid image? image

用建议的代码更改后:

import os

from os import listdir
from os.path import isfile, join
mypath1 = "C:/Documents and Settings/Desktop/clothes/"
mypath2 = "C:/Documents and Settings/My  
Documents/colordescriptors40/i386-win-vc/"
onlyfiles = [ f for f in listdir(mypath1) if isfile(join(mypath1,f)) ]
image = mypath1+f
print  image
pattern = "colorDescriptor %s --detector harrislaplace --descriptor sift --output 
onlyfiles.txt" 
os.system(pattern % image)

我现在收到以下信息:

 Tue04 11:06:45,091 ERROR [Impala.Persistency.FileSystem ] Unable to find C:/Documents 
 in 
 path 
 Tue04 11:06:45,091 INFO  [Impala.Persistency.FileSystem ]     
 Tue04 11:06:45,091 ERROR [Impala.Core.Array.ReadFile ] Don't know how to read 
 Tue04 11:06:45,091 ERROR [Sandbox.koen.mainColorDescriptor ] [ERROR] Could not read input 

文件:它真的是一个有效的图像吗？ C:/文档 [0.1s完成]

Answer 1

问题是您没有使用在命令中生成的值。您需要使用 glob.glob 来获取图像列表(可能是“*.jpg”)、目录中的文件，然后为每个文件创建一个新的 outfile.text 名称并执行如下命令:

    cmd = "colorDescriptor %s --detector harrislaplace --descriptor sift --output %s.txt " % (imagepath, imagepath)
    os.popen(cmd)