Back to results
US 2009/0021753 A1Published application
Methods and Systems for Refining Text Color in a Digital Image
AssigneeSharp Laboratories of America, Inc.
InventorsAhmet Mufit Ferman, John E. Dolan
Life of this patent
Estimating the term…
Abstract
Aspects of the present invention relate to systems and methods for refining text color in a digital image.
Claims23
A method for determining a refinement color value for a pixel of interest in a digital image, said method comprising:
- a) from a digital image comprising a first plurality of pixels, wherein each pixel in said first plurality of pixels comprises an associated color value, selecting a pixel of interest from said first plurality of pixels, said pixel of interest comprising a pixel-of-interest color value;
- b) separating said first plurality of pixels into a second plurality of pixels and a third plurality of pixels based on said pixel-of-interest color value;
- c) calculating a refinement color value based on said second plurality of pixels when said second plurality of pixels meets a quantity threshold;
- d) calculating said refinement color value based on said third plurality of pixels when said second plurality of pixels does not meet said quantity threshold;
- and
- e) assigning said refinement color value to said pixel of interest.
3 more elements
A system for determining a refinement color value for a pixel of interest in a digital image, said system comprising:
- a) a pixel-of-interest selector for, from a digital image comprising a first plurality of pixels, wherein each pixel in said first plurality of pixels comprises an associated color value, selecting a pixel of interest from said first plurality of pixels, said pixel of interest comprising a pixel-of-interest color value;
- b) a classifier for separating said first plurality of pixels into a second plurality of pixels and a third plurality of pixels based on said pixel-of-interest color value;
- c) a refinement color calculator for:
- i) calculating a refinement color value based on said second plurality of pixels when said second plurality of pixels meets a quantity threshold;
- and
- ii) calculating said refinement color value based on said third plurality of pixels when said second plurality of pixels does not meet said quantity threshold;
- and
- d) color-value assigner for assigning said refinement color value to said pixel of interest.
5 more elements
A method for determining a color value for a pixel of interest in a digital image, said method comprising:
- a) from a digital image comprising a first plurality of pixels, wherein each pixel in said first plurality of pixels comprises an associated color value, selecting a pixel of interest from said first plurality of pixels, said pixel of interest comprising a pixel-of-interest color value;
- b) identifying from said first plurality of pixels a second plurality of pixels, wherein said color values associated with said second plurality of pixels are substantially dissimilar to a background-color estimate;
- c) calculating a refinement color value based on said second plurality of pixels;
- and
- d) assigning said refinement color value to said pixel of interest.
2 more elements
Dependencies are inferred from the claim text.