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You can use the following code to train your own classifiers: https://github.com/lluisgomez/erfilter_train I just did it with success. For this process I modified the JTessBoxEditor application so that recognized characters can be cut out, inverted and exported as individual image files. This can save you much time by avoiding cutting out by hand. If you're interested I would upload it somewhere so that you can use it.

I'm currently trying to improve the grouping phase, because I also need to support single characters which are dismissed at the moment. Therefore I tried to train my own erGrouping classifier with the code on Lluis Gomez's GitHub account, but there are no sample images and my results aren't satisfying so far. So I got back to modifying the exhaustive search algorithm...

You can use the following code to train your own classifiers: https://github.com/lluisgomez/erfilter_train I just did it with success. For this process I modified the JTessBoxEditor application so that recognized characters can be cut out, inverted and exported as individual image files. This can save you much time by avoiding cutting out by hand. If you're interested I would upload it somewhere so that you can use it.

I'm currently trying to improve the grouping phase, because I also need to support single characters which are dismissed at the moment. Therefore I tried to train my own erGrouping classifier with the code on Lluis Gomez's GitHub account, but there are no sample images and my results aren't satisfying so far. So I got back to modifying the exhaustive search algorithm...

You can use the following code to train your own classifiers: https://github.com/lluisgomez/erfilter_train I just did it with success. For this process I modified the JTessBoxEditor application so that recognized characters can be cut out, inverted and exported as individual image files. This can save you much time by avoiding cutting out by hand. If you're interested I would upload it somewhere so that you can use it.

I'm currently trying to improve the grouping phase, because I also need to support single characters which are dismissed at the moment. Therefore I tried to train my own erGrouping classifier with the code on Lluis Gomez's GitHub account, but there are no sample images and my results aren't satisfying so far. So I got back to modifying the exhaustive search algorithm...

Update: I finally uploaded the modded jTessBoxEditor to GitHub. Please see my note in the readme on how to invert the images as this is needed to train the erfilter.