Re: [Bug-ocrad] The function ignore_wide_blobs() doth ignore too much, methinks

[Antonio Diaz Diaz]

Hello Tilman,

Tilman Hausherr wrote:
> I researched the issue why, for some images with tables and grey (noisy)
> areas, OCRAD returns no text at all, although some of the texts are in
> clean white areas. I was able to focus on a part in ignore_wide_blobs(),
> which apparently decides about whether a wide blob is an "image" (I
> assume you mean a photograph) or a frame. In my case, the function makes
> a "wrong" decision and then completely deletes blobp_vector.

Did you try the "--layout" or "--cut" options?


> Commenting out the "if" line does solve the problem with the test image,
> obviously - but what are the risks? Getting a lot of useless output? Or
> losing on speed?

Getting a lot of useless output. A photograph can produce thousands of 
noise blobs.


Best regards,
Antonio.