图像处理工具箱已安装 Undefined function 'extractHOGFeatures' for input arguments of type 'uint8'

Question

我正在 matlab 中执行以下代码。

ver
img = imread('/usr/local/MATLAB/coursera_svm/10.pgm');
[featureVector, hogVisualization] =extractHOGFeatures(img);

输出：

MATLAB Version: 8.6.0.267246 (R2015b)
MATLAB License Number: 
Operating System: Linux 3.16.0-51-generic #69~14.04.1-Ubuntu SMP Wed Oct 7 15:32:41 UTC 2015 x86_64
Java Version: Java 1.7.0_60-b19 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
MATLAB           Version 8.6         (R2015b)
Computer Vision System Toolbox                        Version 7.0         (R2015b)
Curve Fitting Toolbox                                 Version 3.5.2       (R2015b)
Database Toolbox                                      Version 6.0         (R2015b)
Global Optimization Toolbox                           Version 3.3.2       (R2015b)
Image Acquisition Toolbox                             Version 4.10        (R2015b)
Image Processing Toolbox                              Version 9.3         (R2015b)
Neural Network Toolbox                                Version 8.4         (R2015b)
Optimization Toolbox                                  Version 7.3         (R2015b)
Parallel Computing Toolbox                            Version 6.7         (R2015b)
Signal Processing Toolbox                             Version 7.1         (R2015b)
Statistics and Machine Learning Toolbox               Version 10.1        (R2015b)
Symbolic Math Toolbox                                 Version 6.3         (R2015b)

Undefined function 'extractHOGFeatures' for input arguments of type 'uint8'.

有人可以帮我解决这个问题吗？谢谢。

Answer 1

extractHOGFeatures是Computer Vision System Toolbox的一部分，你好像已经安装了...如果你做了你会看到什么

>> which extractHOGFeatures

如果它告诉您未找到 extractHOGFeatures，请执行以下操作：

>> rehash toolboxcache

然后再试一次。如果这不起作用，则计算机视觉系统工具箱的许可证可能有问题。您可能需要联系您的系统管理员，或致电 Mathworks 技术支持。

请参阅 rehash toolboxcache 的文档。

图像处理工具箱已安装 Undefined function 'extractHOGFeatures' for input arguments of type 'uint8'

image processing toolbox already installed still Undefined function 'extractHOGFeatures' for input arguments of type 'uint8'

matlab

computer-vision

matlab-cvst