The assigned pixel name is having error in semnatic segmentation "pixellabeldatastore".

The code i am working upon:

pxDir = fullfile('C:\Users\Admin\Downloads\13521488\Mask');
classNames = ["Background","ground-glass" ];
pixelLabelID = [0 1]
pxds = pixelLabelDatastore(pxDir,classNames,pixelLabelID);

Error displayed:

Error using pixelLabelDatastore>parseInputs (line 265)

The value of 'classNames' is invalid. 'ground-glass' is not a valid class name. Class names must be valid MATLAB variable

names. See ISVARNAME for more details.

Error in pixelLabelDatastore (line 211)

[location, classes, values,params] = parseInputs(varargin{:});

Note- Predefined labels are:

ground-glass (mask value =1), consolidation (=2) and pleural effusion (=3)

Answer 1

[Image Analyst]

Evidently it doesn't like the minus sign. Try

classNames = ["Background","GroundGlass"]; % String vector

or

classNames = {'Background', 'GroundGlass'}; % Cell array

[Sakshi Ahuja]

Thanks for the help! This resolved my issue but when i am trying to display the label over input image i am not getting the desired output.

imDir = fullfile('C:\Users\Admin\Downloads\13521488\Train_png');
pxDir = fullfile('C:\Users\Admin\Downloads\13521488\Mask_png');
imds = imageDatastore(imDir);
classNames = ["Background","GroundGlass"];
pixelLabelID = [0 1]
pxds = pixelLabelDatastore(pxDir,classNames,pixelLabelID);

I = readimage(imds,1);
C=readimage(pxds,1);
B = labeloverlay(I,C);
imshow(B)