Question

我想将一些文件保存在当前目录的子目录中，但无论出于何种原因，即使Python“成功”保存输出文件，该目录也不会出现在任何地方。

com_path = './'
out_f = "output"
crop_f = "1-cropped"
(…)
curr_path = os.path.join(com_path, out_f, crop_f)
for elem in images:
    img = img_trim(elem['img'])
    filename = curr_path + 'p_%(p_num)s, (%(orig_name)s)%(ext)s' % elem
    cv2.imwrite(filename, img)
print(curr_path)
>>> ./output\1-cropped
print(com_path)
>>> ./

奇怪的是，在使用时（最初我在这里写的是 curr_path 而不是 com_path ，这是一个错误）：

filename = com_path + 'p_%(p_num)s, (%(orig_name)s)%(ext)s' % elem

一切正常，它将所需文件保存在.py脚本文件夹中。

从我收集到的其他主题和官方文档中，它应该有用 - 为什么不呢？

编辑：根据要求：

print(os.getcwd())
>>> C:\Users\iyoossaev\Desktop\Index Cards\tester

应该在哪里

print(filename)
>>> ./p_71, (p0089).png
>>> ./p_72, (p0090).png
>>> ./p_73, (p0091).png
>>> ./p_74, (p0092).png

文件不为空，当我使用“com_path”时，一切正常（加载和保存）它们按预期生成。更改保存目录会使事情变得混乱（无需更改加载目录）。

编辑2：我决定粘贴整个代码以确保。该程序用于加载图像，将它们转换为B＆amp; W，使用行/列中的像素的平均值来查找文本的相关性并修剪它们，然后使用修改的名称保存结果。一切都有效，除非我试图将它们放入子文件夹中。要测试的示例图片：http://imgur.com/X2mPZr0

# IndexCardSplitter
import cv2      # biblioteka do obróbki 
import os       # operating system-specific
import re       # RegEx
import numpy    # obliczenia matematyczne

p_num_off = -18 
t_thresh_hor = 210.0
t_thresh_ver = 240.0
t_thresh_m = 25


com_path = os.getcwd()
# com_path = '.'
filenames = os.listdir(com_path)
filenames = [ f for f in filenames if os.path.isfile(os.path.join(com_path, f)) and re.match('[^\_]*\.png$', f) ]

out_f = "output"
crop_f = "1-cropped"
col_f = "2-columns"
def_f = "3-definitions"


def name_mod(filename):
    elements = re.match("(p0{1,}([1-9][^\.]*?))(\.....?$)", filename)
    orig_name = elements.group(1)
    p_num = str(int(elements.group(2)) + p_num_off)
    ext = elements.group(3)
    return{'orig_name':orig_name, 'p_num':p_num, 'ext':ext}


def load_images(filenames):
    images = []
    for f in filenames:
        print(f)
        img_t = cv2.imread(os.path.join(com_path,f), cv2.IMREAD_GRAYSCALE)
        thresh, img_t = cv2.threshold(img_t, 128, 255, cv2.THRESH_OTSU)
        dictionary = name_mod(f)
        dictionary['img'] = img_t
        images.append(dictionary)
    return images


def img_trim(image):
    height, width = image.shape
    height = height - 1
    width = width - 1

    top_trim = 0
    bot_trim = height
    left_trim = 0
    right_trim = width

    i = 0           # GÓRA
    while i < height and top_trim == 0:
        row = image[i, 0:-1]
        if numpy.mean(row) < t_thresh_hor:
            top_trim = i
        i = i + 1

    i = height      # DÓŁ
    while i > 0 and bot_trim == height:
        row = image[i, 0:-1]
        if numpy.mean(row) < t_thresh_hor:
            bot_trim = i
        i = i - 1

    i = 0           # LEWO
    while i < width and left_trim == 0:
        col = image[0:-1, i]
        if numpy.mean(col) < t_thresh_ver:
            left_trim = i
        i = i + 1

    i = width       # PRAWO
    while i > 0 and right_trim == width:
        col = image[0:-1, i]
        # col = image[0:-1, 2700]
        if numpy.mean(col) < t_thresh_ver:
            right_trim = i
        i = i - 1

    top_trim = top_trim - t_thresh_m
    bot_trim = bot_trim + t_thresh_m
    left_trim = left_trim - t_thresh_m
    right_trim = right_trim + t_thresh_m

    image = image[top_trim:bot_trim, left_trim:right_trim]
    return(image)


print('*'*40)

# curr_path = os.path.join(os.getcwd(), out_f, crop_f)
# print(curr_path)
print(com_path)
for elem in images:
    img = img_trim(elem['img'])
    # filename = os.path.join(os.getcwd(), out_f, crop_f, 'p_%(p_num)s, (%(orig_name)s)%(ext)s' % elem)
    filename = com_path + 'p_%(p_num)s, (%(orig_name)s)%(ext)s' % elem
    print(filename)
    cv2.imwrite(filename, img)

输入文件名为：p0089.png, p0090.png等。

Answer 1

尝试将npm start设为'。'或C:\Users\RenysRonaldoDelaCruz\Documents\Phonegap\NuevaOFertas>npm start > nuevaofertas@1.0.0 start C:\Users\RenysRonaldoDelaCruz\Documents\Phonegap\NuevaOFertas > node config && HOST=0.0.0.0 webpack-dev-server module.js:471 throw err; ^ Error: Cannot find module 'replace' at Function.Module._resolveFilename (module.js:469:15) at Function.Module._load (module.js:417:25) at Module.require (module.js:497:17) at require (internal/module.js:20:19) at Object.<anonymous> (C:\Users\RenysRonaldoDelaCruz\Documents\Phonegap\NuevaOFertas\config.js:5:17) at Module._compile (module.js:570:32) at Object.Module._extensions..js (module.js:579:10) at Module.load (module.js:487:32) at tryModuleLoad (module.js:446:12) at Function.Module._load (module.js:438:3) npm ERR! Windows_NT 10.0.14393 npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "start" npm ERR! node v6.9.5 npm ERR! npm v3.10.10 npm ERR! code ELIFECYCLE npm ERR! nuevaofertas@1.0.0 start: `node config && HOST=0.0.0.0 webpack-dev-server` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the nuevaofertas@1.0.0 start script 'node config && HOST=0.0.0.0 webpack-dev-server'. npm ERR! Make sure you have the latest version of node.js and npm installed. npm ERR! If you do, this is most likely a problem with the nuevaofertas package, npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! node config && HOST=0.0.0.0 webpack-dev-server npm ERR! You can get information on how to open an issue for this project with: npm ERR! npm bugs nuevaofertas npm ERR! Or if that isn't available, you can get their info via: npm ERR! npm owner ls nuevaofertas npm ERR! There is likely additional logging output above. npm WARN Local package.json exists, but node_modules missing, did you mean to install? npm ERR! Please include the following file with any support request: npm ERR! C:\Users\RenysRonaldoDelaCruz\Documents\Phonegap\NuevaOFertas\npm-debug.log。 com_path不会将正斜杠替换为os.getcwd()。

Python os.path.join（） - 无法正确组合

1 个答案: