MATLAB Answers


Can't reload 'C:\Program Files\MATL​AB\R2018b\​bin\win64\​ocv.dll' when using detectMSERFeatures, while the Computer Vision Toolbox installed indeed.

Asked by Shin Wang on 23 Oct 2018
Latest activity Commented on by sodisetty sarath on 24 Jan 2019
I'm using Matlab R2018b, running on Windows 10 64bit. The problem came out when I tried to run a piece of code that contents detectMSERFeatures. It said : Can't reload 'C:\Program Files\MATLAB\R2018b\bin\win64\ocv.dll'. The code is working fine on the MacOS and another Windows 10 Desktop. Also the computer vision toolbox has been installed and I could use ocr command to recognize the text in the image without any error.I have reinstalled the software and tried to disable the anti-virus software, as well as deleted the prefdir folder.
But nothing works so far. Please help.


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2 Answers

Answer by Shin Wang on 23 Oct 2018
Edited by Shin Wang on 23 Oct 2018
 Accepted Answer

I just fixed the problem by replacing R2018b with R2918a.


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Answer by Amith Kamath on 13 Nov 2018

This happens due to the unavailability of the Visual C redistributable DLLs, which can be downloaded from here:
For more details about what changed, see the following:
Upon the installation, restarting MATLAB should resolve this problem. Please report back here if the problem persists in spite of installing this. Thanks!

  1 Comment

noo sir i install vc_redist.x64.exe.i restart the matlab but same reload is showing.what i have to do

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