Computer Vision - Undefined function 'detectSURFFeatures' for input arguments of type 'uint8'.
显示 更早的评论
When I am trying to follow the Computer Vision Toolbox tutorial with the following code, I am getting the error
Undefined function 'detectSURFFeatures' for input
arguments of type 'uint8'.
>> imshow(TextDetectionExample_01)
>> I = rgb2gray(TextDetectionExample_01);
>> points= detectSURFFeatures(I);
Undefined function 'detectSURFFeatures' for input
arguments of type 'uint8'.
I have Computer Vision installed onto my computer, so am wondering why this is happening? Can anyone help?
采纳的回答
Geoff Hayes
2014-7-25
1 个投票
Deborah - in the Command Window, type which detectSURFFeatures -all to locate the function. If it doesn't exist, you will see a 'detectSURFFeatures' not found message.
Which version of MATLAB are you running? In the Command Window, type ver and check the MATLAB version.
Based on Computer Vision System Toolbox Release Notes, the detectSURFFeatures was introduced in R2011b.
4 个评论
Robert Schneider
2015-3-23
Im getting a similar error with the computer vision toolbox. Im running 2014a, and says stereoAnaglyph not found when i type which stereoAnaglyph -all. Why am I getting this issue, I have the license, working for all my other CV functions.
Image Analyst
2015-3-23
Show us what it says when you type "ver" on the command line. Delete your license number before posting back here.
Robert Schneider
2015-3-23
编辑：Walter Roberson
2016-2-22
MATLAB Version: 8.3.0.532 (R2014a)
Operating System: Mac OS X Version: 10.10.2 Build: 14C1514
Java Version: Java 1.7.0_71-b14 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
MATLAB Version 8.3 (R2014a)
Simulink Version 8.3 (R2014a)
Computer Vision System Toolbox Version 6.0 (R2014a)
Control System Toolbox Version 9.7 (R2014a)
DSP System Toolbox Version 8.6 (R2014a)
Image Processing Toolbox Version 9.0 (R2014a)
Instrument Control Toolbox Version 3.5 (R2014a)
Optimization Toolbox Version 7.0 (R2014a)
Signal Processing Toolbox Version 6.21 (R2014a)
Simulink Control Design Version 4.0 (R2014a)
Statistics Toolbox Version 9.0 (R2014a)
Symbolic Math Toolbox Version 6.0 (R2014a)
Robert Schneider
2015-3-23
I see that the functions were released in a later version. I guess when u buy new toolboxes, you are actually buying old software based on what your original version is.
更多回答（2 个）
Deborah
2014-7-25
0 个投票
1 个评论
Geoff Hayes
2014-7-25
Or maybe you share licenses with other people at wherever you are (work, school, etc.)? If there is a limited number of licenses available then maybe you have to wait until someone else releases it before you can start using that toolbox.
Fatma Buharoon
2016-2-22
0 个投票
If I am having 2015b version free trail why can't I use computer vision toolbox or how can install it with this free trail ??
1 个评论
Walter Roberson
2016-2-22
You need to specifically request the toolboxes you want to trial at the time you get the trial.
Not all toolboxes are installed by default; you may need to go into the MATLAB installer and request that the toolbox be installed.
类别
在 帮助中心 和 File Exchange 中查找有关 Introduction to Installation and Licensing 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
