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:
Jul. 25, 2017
Filed:
Jan. 22, 2015
Apple Inc., Cupertino, CA (US);
Jiefu Zhai, San Jose, CA (US);
Yeping Su, Sunnyvale, CA (US);
Hsi-Jung Wu, San Jose, CA (US);
Chris Y. Chung, Sunnyvale, CA (US);
Xiaosong Zhou, Campbell, CA (US);
Ke Zhang, San Jose, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An encoder may include a luma transform, a transformer, and a chroma transform. The luma transform may determine a linear luminance value based upon a plurality of primary color values of a pixel. The transformer may generate a transformed luminance value based upon the linear luminance value and a plurality of transformed color values based upon corresponding more than one of the primary color values of the pixel. The chroma transform may determine a plurality of chroma values based upon corresponding plurality of transformed color values and the transformed luminance value of the pixel.