(54) MEDIAN COMPUTATION-BASED
INTEGRATED COLOR INTERPOLATION
AND COLOR SPACE CONVERSION
METHODOLOGY FROM 8-BIT BAYER
PATTERN RGB COLOR SPACE TO 24-BIT
CIE XYZ COLOR SPACE
(75) Inventor: Tinku Acharya, Tempe, AZ (US)
(73) Assignee: Intel Corporation, Santa Clara, CA (US)
( * ) Notice: This patent issued on a continued prosecution application filed under 37 CFR 1.53(d), and is subject to the twenty year patent term provisions ol 35 U.S.C. 154(a)(2).
Subject to any disclaimer, the term ol this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
This patent is subject to a terminal disclaimer.
(21) Appl. No.: 09/050,743
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* cited by examiner
Primary Examiner—Leo Boudreau
Assistant Examiner—Ishrat Sherali
(74) Attorney, Agent, or Firm—Blakely, Sokoloff, Taylor & Zalman LLP
What is disclosed is an integrated color interpolation and color space conversion technique and apparatus. A raw image that is arranged in a Bayer pattern where each pixel has only one of the color components needed to form a full color resolution pixel may be converted using this technique directly to a XYZ space image without any intermediate conversion or interpolation steps. Specifically, in one instance, an 8-bit Bayer pattern raw image may be converted directly to a 24-bit XYZ space in a single pass approach. Such an integrated technique may more readily and inexpensively implemented in hardware such as on a digital camera, or in software.
15 Claims, 6 Drawing Sheets
COMBINE WITH COLOR SPACE CONVERSION TO FORM INTEGRATED TECHNIQUE 220
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