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:
Aug. 28, 2018
Filed:
Feb. 10, 2016
Synaptics Incorporated, San Jose, CA (US);
Synaptics Llc, Zug, CH;
Li Liu, San Jose, CA (US);
Dam Le Quang, Hochiminh, VN;
SYNAPTICS INCORPORATED, San Jose, CA (US);
SYNAPTICS LLC, Zug, CH;
Abstract
Apparatus, methods, and other embodiments associated with image processing operations are disclosed that provide image contrast enhancement. According to one embodiment, an apparatus includes histogram stretching logic to generate a stretched histogram. The stretched histogram is generated by compressing an enlarging a contrast of brightness bins of an equalized histogram of brightness component values formed from a previous input frame of image pixel data. Flat region detection logic classifies pixels of the previous input frame of image pixel data as being flat pixels or non-flat pixels, and counts a number of the flat pixels. Noise detection logic classifies the flat pixels as being noisy pixels or non-noisy pixels, and counts a number of the noisy pixels. The number of noisy pixels and characteristics of the stretched histogram are used to enhance the contrast of a current input frame of image pixel data.