Patent ID: 8743424

Claim:
A method for pre-print enhancement of a raster image, the method comprising: receiving the raster image; performing image analysis on the raster image to categorize an element in the raster image as a graphical element, wherein the performing image analysis includes: defining a window comprising a plurality of pixels surrounding the element, each pixel of the plurality of pixels having a value; determining a number representing a quantity of different pixel values associated with the plurality of pixels, wherein each pixel value comprises a vector representation of a corresponding pixel of the plurality of pixels, and wherein determining the number representing the quantity of different pixel values includes determining whether a vector distance between the pixel values of the plurality of pixels is smaller than a predetermined threshold value; determining whether the number representing the quantity of different pixel values is greater than a predetermined number; and in response to determining that the number representing the quantity of different pixel values is greater than the predetermined number, categorizing the element as a graphical element; and applying graphical enhancement to the element categorized as the graphical element.