Question

我运行opencv 3.2.0，ubuntu 14.04和最新的opencv_contrib。

我跑检查： https://github.com/opencv/opencv_contrib/blob/master/modules/text/samples/textdetection.py

但它显示错误：

$ python textdetection.py scenetext_word01.jpg 

textdetection.py
   A demo script of the Extremal Region Filter algorithm described in:
   Neumann L., Matas J.: Real-Time Scene Text Localization and Recognition, CVPR 2012
Extracting Class Specific Extremal Regions from 9 channels ...
(...) this may take a while (...)
OpenCV Error: Bad argument (Default classifier file not found!) in ERClassifierNM1, file /home/vietnam/opencv_and_contri/opencv_contrib/modules/text/src/erfilter.cpp, line 1022
Traceback (most recent call last):
  File "textdetection.py", line 38, in <module>
    erc1 = cv2.text.loadClassifierNM1(pathname+'/trained_classifierNM1.xml')
cv2.error: /home/vietnam/opencv_and_contri/opencv_contrib/modules/text/src/erfilter.cpp:1022: error: (-5) Default classifier file not found! in function ERClassifierNM1

如何解决这个问题？

Answer 1

尝试在cv2.text.loadClassifierNM1（）和cv2.text.loadClassifierNM2（）的参数中使用相对路径所以现在代码的一部分看起来像这样：

   <uses-feature
            android:glEsVersion="0x00020000"
            android:required="true" />

Also

<supports-screens
        android:anyDensity="true"
        android:largeScreens="true"
        android:normalScreens="true"
        android:resizeable="true"
        android:smallScreens="true"
        android:xlargeScreens="true" />

我不确定为什么会这样（它确实适用于我），但是在看了VS2015中针对类似问题发布的解决方案之后我尝试了这个：https://github.com/cesardelgadof/OpenCVBinaries/issues/1

希望这有帮助。

Answer 2

尝试使用绝对路径，例如＆＃34; /usr/lib/opencv-3.2.0/opencv_contrib-3.2.0/modules/text/samples/trained_classifierNM1.xml" 在我的案例中适用于Ubuntu 16.04，C ++ < / p>

OpenCV错误：ERClassifierNM1中的错误参数

2 个答案: