No, it must be something given by tesseract because there could be more red than black (font color in this example) and so it would all screw up! Anyway I can just get the text from tesseract before with the boxes positions... but the problem is that I also need the exact color of the word tesseract picked up.
Tesseract surelly store the positions of the texts when it compute the image, but the point is... is there a way to get these? On 3 Mag, 21:01, Sven Pedersen <[email protected]> wrote: > Using filters to cancel out colors other than the target color, it > should be possible to iteratively extract text of a certain color (say > red, green, blue, black, etc.) But that would be hard. Generally > people just want to get the text and fix the colors later. > --Sven > > > > > > On Sun, May 2, 2010 at 1:41 PM, Sandro Zahra <[email protected]> wrote: > > I think that OCR is not about colours..... > > > On 2 May 2010 17:35, lux <[email protected]> wrote: > > >> I need the RIGHT position of the text or the RIGHT color, not an > >> average color :/. > > >> On 11 Apr, 20:48, MARTIN Pierre <[email protected]> wrote: > >> > > So how can I get the position of text? > >> > > I've tryed with makebox but it's not really right, it gives me the > >> > > cordinates of the whole "letter box" so it's impossible for me to get > >> > > the right pixel of the letter > >> > > (e.g. it would work for an 'I' but for an 'A' it gives me the box left > >> > > up and right down position so I don't know how to get the letter color > >> > > because the 'A' is not at the start nor at the end of the box). > > >> > That's the right method. If you want to know where the "pixels" are, do > >> > an histogram equalization of your picture, then contrast it with a fairly > >> > agressive threshold (If it's not already in 1bpp), this will give you a > >> > copy > >> > of your picture with only black and black pixels. Now, that's on this > >> > picture (Basically 1bpp depth picture) that you run tesseract. > >> > Then given the boxes, you look in your black & white picture where black > >> > pixels are in the boxes, and then with the same coordinates you can see > >> > them > >> > in your original picture. After that, do color average from all pixels > >> > in a > >> > box in your original picture and you're good. > > >> > Pierre. > > >> -- > >> You received this message because you are subscribed to the Google Groups > >> "tesseract-ocr" group. > >> To post to this group, send email to [email protected]. > >> To unsubscribe from this group, send email to > >> [email protected]. > >> For more options, visit this group at > >>http://groups.google.com/group/tesseract-ocr?hl=en. > > > -- > > You received this message because you are subscribed to the Google Groups > > "tesseract-ocr" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group at > >http://groups.google.com/group/tesseract-ocr?hl=en. > > -- > ``All that is gold does not glitter, > not all those who wander are lost; > the old that is strong does not wither, > deep roots are not reached by the frost. > From the ashes a fire shall be woken, > a light from the shadows shall spring; > renewed shall be blade that was broken, > the crownless again shall be king.” > > -- > You received this message because you are subscribed to the Google Groups > "tesseract-ocr" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group > athttp://groups.google.com/group/tesseract-ocr?hl=en. -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/tesseract-ocr?hl=en.
