downloadTrainedNetwork not found (deep learning toolbox?)

조회 수: 5 (최근 30일)
Lauren
Lauren 2025년 6월 9일
편집: Matt J 2025년 6월 11일
Hi, I am a new MATLAB R2025a user and am trying to follow along this tutorial: https://www.mathworks.com/help/images/segment-3d-brain-tumor-using-deep-learning.html#Segment3DBrainTumorsUsingDeepLearningExample-3. When I try to run many of the functions, such as downloadTrainedNetwork, I get this message and find that the function is not defined. I'm having trouble finding documentation for this function online and often see it referred to as being included as a supplementary function in some of these tutorials, though I have not found a defined function. Can somebody help me find where these functions are defined? I have the Computer Vision, Deep Learning, and Image Processing Toolboxes installed.
'downloadTrainedNetwork' is used in the following examples:

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Matt J
Matt J 2025년 6월 9일
This well get you all the required functions,
openExample('images_deeplearning/Segment3DBrainTumorsUsingDeepLearningExample')
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Lauren
Lauren 2025년 6월 9일
Hi Matt! Thank you for the quick response. The functions are now defined but I'm running into other errors with loading the data. Do you know if these are installation related or is there another way to solve them?
(1) Error using load
Unable to find file or directory '/Users/laurentso/Downloads/BraTS/brainTumorSegmentation3DUnet_v2.mat'.
Here, the downloadTrainedNetwork downloads the file brainTumorSegmentation3DUnet_v2.zip but fails to unzip or locate a .mat file.
Function UNTAR was unable to read URL ''https://www.mathworks.com/supportfiles/vision/data/sampleBraTSTestSetValid.tar.gz''.
fullfilename = downloadArchiveFile(protocol, filename, functionName);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[archiveFilename, url] = matlab.io.internal.archive.checkFilename(archiveFilename, validExtensions, archiveFcn, argName);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error in untar (line 10)
matlab.io.internal.archive.parseUnArchiveInputs(mfilename, tarFilename, ...
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
untar(sampledata_url,destination);
Matt J
Matt J 2025년 6월 10일
편집: Matt J 2025년 6월 11일
The code is trying to download data from MathwWorks and failing. MathWorks has had IT problems recently, and I guess they aren't fully resolved.

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