How can I create

I refer to this URL to create

here is my codes.

Answer 1

[Kenta]

The output you want is something like below, right?

Do not use preview function. First, specify the minibatch size as you want.

patchds = randomPatchExtractionDatastore(imds1,imds2,[16 16], ... 
    'DataAugmentation',augmenter,'PatchesPerImage',256)
patchds.MiniBatchSize=256;

Preview a set of augmented image patches and the corresponding smoothed image patches using read function.

patchesRead=read(patchds);
inputPatch=patchesRead.InputImage;
figure;montage(inputPatch)

Likewise, display the response images.

ResponsePatch=patchesRead.ResponseImage;
figure;montage(ResponsePatch)