Natural Language Processing
A very full page of text can contain up to a thousand words, or about 5000 characters. An image of the same page, scanned at 300dpi, contains 8.7 million pixels.
A text in its conceptual form contains only two relationships: one word may be before or after another. Once a page of text scanned, the pixels can have an infinite number of relations: on the left, on the right, atop, above and all possible angles.
This clearly illustrate the complexity of image processing with respect to natural language processing. CoReNum's level of competence obviously allows us to process documents in text mode to, for example, extract keywords, key-phrases, or even an automatic summarization.