Hi
To aid my OCR component in recognizinig text I'd like to binary threshold my image first.
I'd like to try a new method of thresholding where I do not only define a threshold value, but als define that the R-G-B component values must be very close to each other.
This way I hope to separate dark-grey text from dark-blue background, where the pixels fall into the same intensity range, but a human could easily distinguish them because of their color.
Example:
- RGB(9, 9, 9) => becomes black
- RGB(1, 1, 10) => becomes white
Now I can figure out how to iterate over every pixel and do just that. The question is, do you know if this type of thresholding algorithm is already implemented or if there already exists a name for it?
Thank you very much!