how to resolve this input size error

i am having trouble to resolve this input size error, tried putting (224 224) the input size as my pretrained model is googlenet, tried putting 22 which is the no of folders in my dataset, that I have trained my model on

pretrained = load("D:\Training\T6\netTransfer.mat");
classes = pretrained;
cam = webcam;
player = vision.VideoPlayer;
classifyInterval = 10;

sequenceLength = pretrained.InputSize(22);
maxNumFrames = 280;
numFrames = 0;
text = "";

while numFrames <= maxNumFrames
    frame = snapshot(cam);
    
    numFrames = numFrames + 1;
    pretrained = updateSequence(pretrained,frame);
    if mod(numFrames, classifyInterval) == 0 && numFrames >= sequenceLength
        [label,scores] = classifySequence(pretrained);
        if ~isempty(label)
            text = string(label) + "; " + num2str(max(scores), "%0.2f");
        end
    end
    frame = insertText(frame,[30,30],text,'FontSize',18);
    step(player,frame);
end

but it didnot work, I don't get now what it is asking for. Please suggest me ways to resolve this.

Answer 1

[Image Analyst]

You forgot to attach "D:\Training\T6\netTransfer.mat". Pretrained is a structure that contains all the variables you saved as fields of that structure. Evidently there is no InputSize field of the pretrained structure, hence it throws that error. When you call save(), make sure you also tell it to save the InputSize variable.

[Aiman Zara]

@Image Analyst it throws the same error, even after loading the pretrained file. I dont get your point of input size which you discussed above. Please elaborate it for me or provide some solutions to get through this problem. waiting

[Image Analyst]

When you get the error, open up classes or pretrained by double clicking on them in the Workspace panel. What do you see? Do you see a InputSize field on those structures? (The answer is No.) So how can you use if if it's not there?