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Watershed Transform and PCA opencv 3.0 c++

I am trying to train a PCA(classification/recognition) with watershed transform(feature extraction) on Opencv 3.0 with C++. I have managed to get the watershed working but now I have trouble merging the watershed transform with the PCA.

Can Watershed algorithm be performed with PCA for training data?

Watershed Transform and PCA opencv 3.0 c++

I am trying to train a PCA(classification/recognition) with watershed transform(feature extraction) on Opencv 3.0 with C++. I have managed to get the watershed working but now I have trouble merging the watershed transform with the PCA.

Can Watershed algorithm be performed with PCA for training data?

Here is my output as watershedded image.

image description

Now i want to use it with PCA for activity recognition,that is, six different types of activities (named: bend, jack, run, side, skip, and wave) have to be recognized.