Re: How to encode image produced by a recognition system?

["Chahine M. Hamila" <mch at chaham dot com>]

Salaam,

Nia Azniah a *crit :

>    Salaam.. i'm new to this subject... anyway i need to solve a post-processing phase for a Jawi ('Old Malay', origin from Arabic script) manuscripts 
>    recognition system.. hope to get help from this list ...
Cool, looks like serious stuff;)
>    1. This particular recognition system produce binary images of Jawi/arabic scripts.
More details please. What do you provide in input for example?
>  How do we transform the particular image to match the codes given 
>    by UNICODE? (In other words, how do we make the result of a recognition system to be accepted and used as UNICODE /UTF-8 encodings?)
I think I might need more details here too. But assuming you have an image
file of an Arabic/Jawi letter and you want it transformed into a unicode
encoded character, your best bet is to write :
1) a filter that would convert your binary image in a pixel array
2) write a neural network that you would train by feeding it arrays
representing different letters
If you are not dealing with images of seperate letters, it's a lot
more complex even. I am not aware of any arabic-related OCR technology,
so a 2-cents worth idea would be a similar training on neural networks
for seperating letters, with a "parallel" dichotomic work trying to estimate
letters width for example? Say, you take an arbitrary width for a start,
you pass it through your nn, if your program thinks the result is not ok,
it changes the width and redo it, etc?
I suppose there should be better approaches for seperating letters
though.
>    a) What is the best format to save the image?
Save an image of what?
>    b) Do i need to build databases for the images first then the codes?
In the case of character reckognition you need to build trained neural
networks.
>    I don't have much ideas about it...please help
More details please for a suitable help:)
Salaam,
Chahine