initwithlanguage

[flavie lancereau]

are arguments of TessBaseAPI::InitWithLanguage efficient for ocr ?

i do a c++ program which clean image then call for tesseract. Result
are completely different between calling terressarct with : system
("tesseract ...") and call TessBaseAPI .

[rthomas]

The process do a thresholding on the image, the library doesn't.

Rémi

On Oct 30, 5:39 pm, flavie lancereau <lancereau.fla...@gmail.com>
wrote:

[flavie lancereau]

i do a threshold too before calling tesserac but this can be my problem thank you. I will try to add otsu threshold in my program (i have see that tesseract use that threshold)

2009/10/31 rthomas <remi....@gmail.com>

[flavie lancereau]

i found my problem it was the use of opencv buffer
so if people want to use opencv then tesseract you can use buffer as
follow :
text = TessBaseAPI::TesseractRect((unsigned char*)img->imageData,img-
>depth/8,img->widthStep,0,0,img->width,img->height);
text = TessBaseAPI::TesseractRectBoxes((unsigned char*)img-
>imageData,img->depth/8,img->widthStep,0,0,img->width,img->height,img-
>height);
where img is an IplImage for opencv

did someone know how to mask output error : "Using substitute bounding
box at ..." ?

On 1 nov, 11:11, flavie lancereau <lancereau.fla...@gmail.com> wrote:
> i do a threshold too before calling tesserac but this can be my problem
> thank you. I will try to add otsu threshold in my program (i have see that
> tesseract use that threshold)
>

> 2009/10/31 rthomas <remi.tho...@gmail.com>

[flavie lancereau]

ok i answer myself
on ubuntu when calling my program i use 2>/dev/null error messages
will not appear