1. A method for extracting highlighted regions in a scanned text document, comprising: converting a color space of a scanned text document comprising a highlighted text within a highlighted region into an sRGB color space by converting said scanned text document into a plurality of background image planes and a plurality of mask binary planes; applying constant threshold intervals for each color channel of said sRGB color space; extracting said highlighted region from said scanned text document by bounding a color of said highlighted region to a highlighted cuboid in said sRGB color space by determining if each background image plane of said plurality of background image planes is a uniform color; extracting said highlighted text from said highlighted cuboid by creating a highlighted region image by setting pixel values of uniform color pixels within said highlighted cuboid to white and remaining pixels within said highlighted region to black; and optically recognizing said highlighted text in order to recognize text extracted from said highlighted region image of said scanned text document.