SYSTEMS AND METHODS FOR LOCAL TONE MAPPING

Patent №

US 9,105,078

Granted

2015-08-11

Filed 2012

Owner

APPLE INC.

Lab

AI components

1

vision

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

13485421

Systems and methods for local tone mapping are provided. In one example, an electronic device includes an electronic display, an imaging device, and an image signal processor. The electronic display may display images of a first bit depth, and the imaging device may include an image sensor that obtains image data of a higher bit depth than the first bit depth. The image signal processor may process the image data, and may include local tone mapping logic that may apply a spatially varying local tone curve to a pixel of the image data to preserve local contrast when displayed on the display. The local tone mapping logic may smooth the local tone curve applied to the intensity difference between the pixel and another nearby pixel exceeds a threshold.

VisionG06T 5/94G06T 1/20G06T 5/20G06T 5/50G06T 5/70G06T 5/73G06T 2207/10024G06T 2207/20012+2 more

AI classification

Vision1.00
Planning0.01
AI hardware0.00
Machine learning0.00
Natural language0.00
Evolutionary computation0.00
Speech0.00
Knowledge representation0.00

Ownership

APPLE INC.

assignment · 295030453

Assignors

LIM, SUK HWAN, SILVERSTEIN, D. AMNON, COTE, GUY, HORDLEY, STEVEN DAVID, FINLAYSON, GRAHAM, KU, WEICHUN, BRATT, JOSEPH P.

On an employer assignment, the assignors are typically the inventors.

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