1. A method implemented in a media processing device, comprising: obtaining, by the media processing device, media content; receiving, by the media processing device, pre-defined text comprising one of: subtitles and annotations associated with the media content; performing, by the media processing device, semantic analysis on the pre-defined text and a visual portion of the media content to obtain at least one semantic textual segment each corresponding to a text section of the pre-defined text, wherein the text section comprises at least one word in the pre-defined text in the at least a portion of the media content; generating, by the media processing device, at least one context token corresponding to the at least one semantic textual segment, wherein each context token comprises an entropy value representing a measure of contextual information conveyed by a corresponding semantic textual segment; and visually accentuating, by the media processing device, the text section according to the entropy value of each context token, wherein visually accentuating comprises selectively modifying a visual attribute of only the text section of the pre-defined text.