How to improve blob detection in this example

[PorridgeBear]

Consider this case. The first image represents my input. Note the lefthand border area.

Using ScrollView to view the detected blobs, Tesseract is grouping that left hand border with the 'J'

Seen more easily here ...

Tesseract then recognises this shape as an 'F' which you can sort of see how it could.

The baseline has been detected quite well, so I assume the anti-skewing is working. I wonder if this is to do with the distance between the 'J' and this border.

I have a list of all the Tesseract configuration values but they are not documented all that well and not enough to know whether this is a case that can be solved with a configuration tweak.

I was surprised the size of the apparent 'F' is quite a bit bigger than the rest of the height.

Cheers

[PorridgeBear]

Seems my images did not work. Here are all 3 in a single image:

https://dl.dropboxusercontent.com/u/523401/ocr.jpg