TesseractTool

[Olly]

TesseractTool - A Helper tool for finding the best (simple) filter to get the best recognition results.

I wrote a small tool in Lape so people can understand, and figure out how the simple filters we apply to images for Tesseract to work optimal.

Optimal way is to re-size > threshold > Tesseract.

Couple of tips:

• Left click on image to start to draw a box, left click again to finish the box.
• Press enter to crop the image.
• Control + v to paste from clipboard.
• Set whitelist (Chars to only read) under the tesseract menu.

To-do:

• Undo/Redo

Git: https://github.com/Olly-/TesseractTool



Also, Thanks to slacky, He made me release it.. and helped with bit of it.

[Clarity]

Thanks for this, especially since I didn't know exactly what the constants were doing, I had been guessing and checking up until now.

[Ross]

Nice! This can come in handy!

[slacky]

Great work Olly

[The Mayor]

Didn't you release this ages back? After moar reps i c

[Amichie]

Great tool!

[elephant]

Would this tool help with text recognition of AA text? If not what is this used for in text recognition? Seems interesting .

[Turpinator]

Would this tool help with text recognition of AA text? If not what is this used for in text recognition? Seems interesting .

Yes, probably. This uses TesseractOCR (https://code.google.com/p/tesseract-ocr/) and Tesseract is also used in SRL-6 on somethings where handmade fonts (as well as simba's method) just dont cut it.

There is nothing really required to do, ie font picking, sizing, spacing, etc, just give tesseract a bitmap (or in SRL-6's case, a tbox) and it extracts the text fairly well.

Keep in mind, as this is not like simba's OCR, it is slower. But for AA'ed text, it will probably work better.

[mario92]

Would this tool help with text recognition of AA text? If not what is this used for in text recognition

[Vacrin]

Hmmmm, been trying to use Tesseract to read green text letters. I can get the tool to work perfectly. It reads the text like a boss. However the actual tesseract that simba uses, outputs 3 different lines with about 10 digits each. (I'm only reading 3 characters....)

EDIT: Finally figured it out, maybe had something to do with saving the tesseract file before trying it out. Still though, the tesseractGetText function needed a filter of [3, 3, [false, 20, TM_MEAN]]. Yet the tool said that [5, 5, [false, 0, TM_MEAN]] would work perfectly for reading lime-green text.