1. A computer-implemented method for providing a text-based representation of a region of interest of an image to a user, the method comprising the steps of: identifying text zones within the image, each text zone comprising textual content and having a respective rank assigned thereto based on an arrangement of the text zones within the image; determining a processing sequence for performing optical character recognition on the text zones, the processing sequence being based, firstly, on an arrangement of the text zones with respect to the region of interest and, secondly, on the ranks assigned to the text zones; and performing an optical character recognition process on the text zones according to the processing sequence to progressively obtain a machine-encoded representation of the region of interest, and concurrently present said machine-encoded representation to the user, via an output device, as the text-based representation.