pixel label image must have 3 channels when RGB triplet pixel label IDs are specified

When tried to run segmentation program , following error occured

[Rus Gabriela]

Hello!

Did you find the answer for your problem? I have the same error.

[john]

Did you guys got the answer? I too have the same error

[Fernando Perez]

Same error here!!

Answer 1

[Antoni Woss]

This error is being thrown because of the second argument being passed to pixelLabelImageSource, pxdsTrain, which is of type ImageDatastore rather than PixelLabelDatastore. You need to ensure the second argument is of type PixelLabelDatastore (https://www.mathworks.com/help/vision/ref/pixellabeldatastore.html). The following documentation page gives more information on the function arguments: https://www.mathworks.com/help/vision/ref/pixellabelimagesource.html

Note from this documentation page that this function, pixelLabelImageSource, has been removed since R2018a.