不知怎的,我运行了一个带参数的python脚本,在cmd上运行得很完美,但当我把它传给我的C#时,似乎它没有正确地传递参数。
Cmd的结果。
C:\Users\Sick\source\repos\phoneScraper\phoneScraper\bin\Debug\netcoreapp3.1\Captchas>script.py dztfi.png
mysycd
代码:
static string run_cmd(string arg) // arg value = image.png
{
string result = "";
ProcessStartInfo start = new ProcessStartInfo();
start.FileName = @"C:\Users\Sick\AppData\Local\Programs\Python\Python38-32\python.exe";//cmd is full path to python.exe
start.Arguments = "Captchas/script.py " + arg;//args is path to .py file and any cmd line args
start.UseShellExecute = false;
start.RedirectStandardOutput = true;
using (Process process = Process.Start(start))
{
using (StreamReader reader = process.StandardOutput)
{
result = reader.ReadToEnd();
Console.WriteLine(result);
}
}
return result;
}
c# error:
Traceback (most recent call last):
File "Captchas/script.py", line 11, in <module>
close = cv2.morphologyEx(img, cv2.MORPH_OPEN, kernel)
cv2.error: OpenCV(4.2.0) C:\projects\opencv-python\opencv\modules\core\src\matrix.cpp:757: error: (-215:Assertion failed) dims <= 2 && step[0] > 0 in function 'cv::Mat::locateROI'
Python代码
import cv2
import numpy as np
import pytesseract
import sys
img = cv2.imread(sys.argv[1], cv2.IMREAD_GRAYSCALE)
img = cv2.bitwise_not(img)
kernel = np.ones((7, 7), np.uint8)
close = cv2.morphologyEx(img, cv2.MORPH_OPEN, kernel)
newkernel = np.ones((5, 5), np.uint8)
inv = cv2.erode(close, newkernel, iterations=1)
inv = cv2.bitwise_not(inv)
custom_config = r'-l eng --oem 3 --psm 7 -c tessedit_char_whitelist="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"'
text = pytesseract.image_to_string(inv, config=custom_config)
print(text)
谢谢!
你应该指定ProcessStartInfo的WorkingDirectory。例如,你在你的应用程序中使用Application.StartupPath。所以如果你从cmd启动你的应用程序,我认为python.exe正在运行你的脚本。但是你的应用程序是在你的脚本的地方启动的,所以试试脚本给出的脚本目录。
static string run_cmd(string arg) // arg value = image.png
{
string result = "";
ProcessStartInfo start = new ProcessStartInfo();
start.FileName = @"C:\Users\Sick\AppData\Local\Programs\Python\Python38-32\python.exe";//cmd is full path to python.exe
start.Arguments = "Captchas/script.py " + arg;//args is path to .py file and any cmd line args
start.UseShellExecute = false;
start.WorkingDirectory = ""//scriptPath
start.RedirectStandardOutput = true;
using (Process process = Process.Start(start))
{
using (StreamReader reader = process.StandardOutput)
{
result = reader.ReadToEnd();
Console.WriteLine(result);
}
}
return result;
}