Error in minibatchqueue (line 290) numVariables = numel(getPreviewFromDatastore(originalDatastore));

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Abu Yusuf 2022-3-31

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1685864-error-in-minibatchqueue-line-290-numvariables-numel-getpreviewfromdatastore-original

评论： Abu Yusuf 2022-4-21

Hi,

I am only trying to recreate this example: https://www.mathworks.com/help/images/unsupervised-medical-image-denoising-using-unit.html

I get this error :

------

Error in minibatchqueue (line 290)

numVariables = numel(getPreviewFromDatastore(originalDatastore));

Error in ourmodel (line 32)

mbqLDTrain = minibatchqueue(imdsLDTrain,MiniBatchSize=miniBatchSize, ...

------

Part of the code:

miniBatchSize = 1;

mbqLDTrain = minibatchqueue(imdsLDTrain,MiniBatchSize=miniBatchSize, ...

MiniBatchFormat="SSCB",DispatchInBackground=canUseGPU);

mbqHDTrain = minibatchqueue(imdsHDTrain,MiniBatchSize=miniBatchSize, ...

MiniBatchFormat="SSCB",DispatchInBackground=canUseGPU);

My matlab is R2021a version with Deep Learning Toolbox.

How do i fix this error ?

Thank You

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Abu Yusuf 2022-4-18

Invalid transform function defined on datastore.

The cause of the error was:

Undefined function 'augmentDataForLD2HDCT' for input arguments of type 'double'.

Error in @(x)augmentDataForLD2HDCT(x,inputSize)

Error in matlab.io.datastore.TransformedDatastore/applyTransforms (line 607)

data = ds.Transforms{ii}(data);

Error in matlab.io.datastore.TransformedDatastore/read (line 222)

[data, info] = ds.applyTransforms(data, info);

Error in matlab.io.datastore.TransformedDatastore/preview (line 292)

dataFromRead = read(copyds);

Error in getPreviewFromDatastore (line 9)

previewData = preview(inputDatastore);

Error in minibatchqueue (line 290)

numVariables = numel(getPreviewFromDatastore(originalDatastore));

Joss Knight 2022-4-18

Great! So there's your answer. When you modified this example you presumably forgot to copy over the accompanying file augmentDataForLD2HDCT.m.

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采纳的回答

Joss Knight 2022-4-18

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1685864-error-in-minibatchqueue-line-290-numvariables-numel-getpreviewfromdatastore-original#answer_945395

Make sure the accompanying file augmentDataForLD2HDCT.m that comes with this example is on the path when you run your code.

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Abu Yusuf 2022-4-21

-----------------------------------------------------------------------------------------------------

MATLAB Version: 9.10.0.1602886 (R2021a)

MATLAB License Number: 968398

Operating System: Microsoft Windows 10 Professionnel Éducation Version 10.0 (Build 19043)

Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode

-----------------------------------------------------------------------------------------------------

MATLAB Version 9.10 (R2021a)

Simulink Version 10.3 (R2021a)

5G Toolbox Version 2.2 (R2021a)

Audio Toolbox Version 3.0 (R2021a)

Bioinformatics Toolbox Version 4.15.1 (R2021a)

Communications Toolbox Version 7.5 (R2021a)

Computer Vision Toolbox Version 10.0 (R2021a)

Control System Toolbox Version 10.10 (R2021a)

Curve Fitting Toolbox Version 3.5.13 (R2021a)

DSP System Toolbox Version 9.12 (R2021a)

Data Acquisition Toolbox Version 4.3 (R2021a)

Database Toolbox Version 10.1 (R2021a)

Datafeed Toolbox Version 6.0 (R2021a)

Deep Learning HDL Toolbox Version 1.1 (R2021a)

Deep Learning Toolbox Version 14.2 (R2021a)

GPU Coder Version 2.1 (R2021a)

Image Acquisition Toolbox Version 6.4 (R2021a)

Image Processing Toolbox Version 11.3 (R2021a)

Instrument Control Toolbox Version 4.4 (R2021a)

MATLAB Coder Version 5.2 (R2021a)

MATLAB Compiler Version 8.2 (R2021a)

MATLAB Compiler SDK Version 6.10 (R2021a)

MATLAB Parallel Server Version 7.4 (R2021a)

MATLAB Report Generator Version 5.10 (R2021a)

Mapping Toolbox Version 5.1 (R2021a)

Optimization Toolbox Version 9.1 (R2021a)

Parallel Computing Toolbox Version 7.4 (R2021a)

Partial Differential Equation Toolbox Version 3.6 (R2021a)

Signal Processing Toolbox Version 8.6 (R2021a)

SimBiology Version 6.1 (R2021a)

SimEvents Version 5.10 (R2021a)

Simscape Version 5.1 (R2021a)

Simscape Driveline Version 3.3 (R2021a)

Simscape Electrical Version 7.5 (R2021a)

Simscape Fluids Version 3.2 (R2021a)

Simscape Multibody Version 7.3 (R2021a)

Simulink 3D Animation Version 9.2 (R2021a)

Simulink Check Version 5.1 (R2021a)

Simulink Code Inspector Version 3.8 (R2021a)

Simulink Coder Version 9.5 (R2021a)

Simulink Compiler Version 1.2 (R2021a)

Simulink Control Design Version 5.7 (R2021a)

Simulink Coverage Version 5.2 (R2021a)

Statistics and Machine Learning Toolbox Version 12.1 (R2021a)

Symbolic Math Toolbox Version 8.7 (R2021a)

System Identification Toolbox Version 9.14 (R2021a)

Joss Knight 2022-4-21

Well, that explains it. That example didn't exist in R2021a and doesn't work with it. Either upgrade MATLAB, or look for an example in the archive documentation that will work and which you can adapt for your purposes: https://www.mathworks.com/help/releases/R2021a/deeplearning/examples.html

Abu Yusuf 2022-4-21