Tesseract not recognize number

[radioja...@gmail.com]

Hi, i'm working under raspberry pi 2.
I capture the image from ip camera and clean it with textcleaner script.
this is the image that i used into tesseract to recognize the number 1234

but i have always empty output txt file.
You can help me about this problem?

[Brian51]

Hi, Try deskewing and cropping the area that is important, i.e. the numbers, and remove all the background noise.

[radioja...@gmail.com]

It's possible to remove backgroud and crop by bash script ?
How?

[Brian51]

If it is just one image, I would use one of the image manipulation programs, if you have a lot of images then Scan-tailor is one of the better programs for pre-processing!

On Thursday, June 8, 2017 at 10:20:10 AM UTC+2, radioja...@gmail.com wrote: