imread() 函数断言失败

Question

我正在尝试用 openCV-python 做一个简单的模板匹配，但一开始就出错了。我有运行以下代码：

import cv2 as cv
import numpy as np


haystackImg = cv.imread('fullImage.png', cv.IMREAD_UNCHANGED)
needleImg = cv.imread('diamond.png', cv.IMREAD_UNCHANGED)

result = cv.matchTemplate(haystackImg,needleImg, cv.TM_CCOEFF_NORMED)

cv.imshow('result', result)
cv.waitKey() ```

...我收到此错误：

[ WARN:0@0.186] global D:\a\opencv-python\opencv-python\opencv\modules\imgcodecs\src\loadsave.cpp (239) cv::findDecoder imread_('fullImage.png'): can't open/read file: check file path/integrity
[ WARN:0@0.195] global D:\a\opencv-python\opencv-python\opencv\modules\imgcodecs\src\loadsave.cpp (239) cv::findDecoder imread_('diamond.png'): can't open/read 
file: check file path/integrity                                                                                                                                 ython39/python.exe "c:/U
Traceback (most recent call last):
  File "[myFilePath]\starting.py", line 8, in <modd file: check file path/ule>
    result = cv.matchTemplate(haystackImg,needleImg, cv.TM_CCOEFF_NORMED)
cv2.error: OpenCV(4.5.5) D:\a\opencv-python\opencv-python\opencv\modules\imgproc\src\templmatch.cpp:588: error: (-215:Assertion failed) corr.rows <= img.rows + 
templ.rows - 1 && corr.cols <= img.cols + templ.cols - 1 in function 'cv::crossCorr'

其中令人困惑的部分是，我什至没有 D: 驱动器，而模块正在上面搜索一些东西。我重新安装了它，但没有帮助。

Answer 1

问题是，我的源路径包含非 ASCII 字符，例如 á 和 é...创建了一个没有任何非 ASCII 字符和空格的新位置，现在工作正常。

imread() 函数断言失败

Assertion failed in imread() function

c++

python

opencv