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. 05, 2015
Filed:
Feb. 16, 2011
Michael Frank, Sunnyvale, CA (US);
Anup Sharma, Sunnyvale, CA (US);
Michael Frank, Sunnyvale, CA (US);
Anup Sharma, Sunnyvale, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Devices and methods for obtaining image data that preserves highlight details and shadow details from image data from a high dynamic range (HDR) image sensor are provided. For example, an image signal processor may include a first data path of a relatively high bit depth, front-end image processing logic, and a second data path of a relatively low bit depth. The first data path may receive HDR image data from an image sensor. The front-end image processing logic may convert the HDR image data into lower-bit-depth image data, while preserving highlight details and/or shadow details of the HDR image, by using at least two transfer functions that preserve different subsets of the high dynamic range. The second data path may output this lower-bit-depth image data to other image processing logic for additional image processing.