Error using matlab.io.​datastore.​ImageDatas​tore/horzc​at Array formation and parentheses-style indexing with objects of class 'matlab.io​.datastore​.ImageData​store' is not allowed. Use objects of class 'matlab.io​.datastore​.ImageData​store' only as scalar

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Rahmawati Rahmawati
回答： Swetha Polemoni 2021-4-20
How to solve this error
clc; clear all; close all
digitDatasetPath = fullfile('Dataset Rahma')
imds = imageDatastore(digitDatasetPath, ...
'IncludeSubfolders',true, ...
'LabelSource','foldernames');
tbl = countEachLabel(imds);
minSetCount = min(tbl{:,2});
imds = splitEachLabel(imds, minSetCount, 'randomized')
countEachLabel(imds);
[trainingSet, testSet] = splitEachLabel(imds, 0.3,'randomize');
imageSize = [224 224 3];
% auimds = augmentedImageDatastore(ImageSize,imds);
augmentedTrainingSet= augmentedImageDatastore(imageSize,...
trainingSet, 'ColorPreprocessing','gray2rgb');
%To convert and resize any gray scale image to RGB
augmentedTestSet= augmentedImageDatastore(imageSize,...
testSet, 'ColorPreprocessing','gray2rgb');
encodingLayers = [ ...
convolution2dLayer(3,16,'Padding','same'), ...
reluLayer, ...
maxPooling2dLayer(2,'Padding','same','Stride',2), ...
convolution2dLayer(3,8,'Padding','same'), ...
reluLayer, ...
maxPooling2dLayer(2,'Padding','same','Stride',2), ...
convolution2dLayer(3,8,'Padding','same'), ...
reluLayer, ...
maxPooling2dLayer(2,'Padding','same','Stride',2)];
decodingLayers = [ ...
createUpsampleTransponseConvLayer(2,8), ...
reluLayer, ...
createUpsampleTransponseConvLayer(2,8), ...
reluLayer, ...
createUpsampleTransponseConvLayer(2,16), ...
reluLayer, ...
convolution2dLayer(3,1,'Padding','same'), ...
clippedReluLayer(1.0), ...
regressionLayer];
options = trainingOptions('adam', ...
'MaxEpochs',100, ...
'MiniBatchSize',imds.ReadSize, ...
'Plots','training-progress', ...
'Verbose',false);
layers = [imds,encodingLayers,decodingLayers,options];
net = trainNetwork(imds,layers,options);

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回答（1 个）

Swetha Polemoni
Swetha Polemoni 2021-4-20
Hi
You may find this Matlab answer helpful.

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