Tesseract does not recognize single characters

Question

How to represent:

1. Create new image with paint (any size)
2. Add letter A to this image
3. Try to recognize -> tesseract will not find any letters

Answer 1

You must set the "page segmentation mode" to "single char".

For example, in Android you do the following:

api.setPageSegMode(TessBaseAPI.pageSegMode.PSM_SINGLE_CHAR);