I'm going to develop image segmentation engine using SOM NN.
It will be a preprocessing step of OCR.
So, I'm having an image that represents a single textline.
And I need it to be splitted into single characters.
I gave a shot to MatLab's SOM Toolbox, but the main point to me now is to understand how should it be trained.
What training data should I pass to the network?
any help appreciated.