Creating Image Datastore as a struct for codegen throwing an error

Hi,

I am trying to create an ImageDatastore object to initialize a bag of features and then run codegen on it. Documentation says I can create it as a struct but it still throws an error.

images = cell(numImages, 1);

labels = cell(numImages, 1);

for k = 0:numImages-1

filename = fullfile(imageFolder, sprintf('%04d.jpg', int32(k)));

images{k+1} = imread(filename);

labels{k+1} = sprintf('%04d.jpg', int32(k));

end

imds.Images = images;

imds.Labels = categorical(labels);

bag = bagOfFeatures(imds, 'CustomExtractor',CustomFeatureExtractor, ...

bowParams{:});

This is the error I get:

• It no longer gives me an error on codegen.
• It doesn't work with regular execution.

Error using bagOfFeatures/parseInputs (line 1005)

The value of 'imds' is invalid. Expected imds to be one of these types:

matlab.io.datastore.ImageDatastore

Instead its type was struct.

Error in

bagOfFeatures (line 119)

[imgSets, params] = bagOfFeatures.parseInputs(varargin{:});

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Error in

main_vSLAM_VisualHull_RaspPi (line 283)

bag = bagOfFeatures(imds, 'CustomExtractor',CustomFeatureExtractor, ...

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Am I doing something wrong here?