The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2001
Filed:
Jun. 30, 1998
David G. Garber, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A method of allowing an Internet user to change the color of an object within an image includes a design phase in which a designer identifies pixels forming the object. This phase includes specifying a base color and ranges of hues, luminances, and saturations around those of the base color. Any pixels in these ranges are selected as part of the image and an HLS differential is calculate for each of the selected pixels. An HLS differential includes a hue component, which in turn includes a target hue toward which the pixel is tinted relative to a base hue of the object. The hue component also includes a variation degree indicating a degree by which the pixel is tinted from the base hue toward the target hue. The HLS differential also includes luminance and saturation components indicating luminance and saturation variations from the luminance and saturation of the base color. The HLS differentials are transmitted to requesting clients instead of the nominal pixel values, and the client uses the HLS differentials in conjunction with a new base color specified by a user to calculate actual pixel values.