Re: [Bug-ocrad] reading color images

[Antonio Diaz Diaz]

> I've noticed that GNU Ocrad 0.14 implements reading of color images and
> looked at the code (without testing it). You seem to use the formula
>
> greyvalue = min(red, green, blue)
>
> which does not at all work like the human eye.

You are right in that it does not at all work like the human eye, but I 
tried several formulas and this gave the best results for detecting 
color letters on a white background. Your formulas seem to give better 
results for images of real objects.

Of course I am willing to change the formula as soon as I have proof 
that some other works better.


Best regards,
Antonio.