hello everyone, I have faced this error on my CNN

rehana_paul asked: 2022-01-12 deep learning , dl , cnn , convolutional neur...

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Expert Answer

Prashant Kumar answered . 2025-07-12 16:54:59

The error is located in the "NumChannels", it must have the same amout of channels of the filters used in the poir Convolution layer, so, the correct way to write it is:

          convolution2dLayer(5,32,'NumChannels',1);
          reluLayer();
          maxPooling2dLayer(2,'Stride',2);

         convolution2dLayer(5,32,'NumChannels', 32);
         reluLayer();
          maxPooling2dLayer(2,'Stride',2);

          convolution2dLayer(5,64)
          reluLayer();
          maxPooling2dLayer(2,'Stride',2);

          fullyConnectedLayer(5);
          softmaxLayer
          classificationLayer()];

In other cases, it may be no necessary to specify the number of channels, and let it be automaticaly get.

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