Methods and systems for enhancing display characteristics with frequency-specific gain
First Claim
Patent Images
1. A method for adjusting an image for increased brightness, said method comprising:
- a) applying a tone scale adjustment model to a low-pass (LP) version of an image to form an adjusted LP image;
b) applying a constant gain factor to a high-pass (BP) version of said image to form an adjusted HP image;
c) adding said adjusted LP image to said adjusted HP image to form a brightness-enhanced image.
2 Assignments
0 Petitions
Accused Products
Abstract
Embodiments of the present invention comprise systems, methods and devices for increasing the perceived brightness of an image. In some embodiments this increase compensates for a decrease in display light source illumination.
-
Citations
20 Claims
-
1. A method for adjusting an image for increased brightness, said method comprising:
-
a) applying a tone scale adjustment model to a low-pass (LP) version of an image to form an adjusted LP image;
b) applying a constant gain factor to a high-pass (BP) version of said image to form an adjusted HP image;
c) adding said adjusted LP image to said adjusted HP image to form a brightness-enhanced image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for adjusting an image for increased brightness, said method comprising:
-
a) applying a low-pass (LP) filter to an image to create an LP version of said image;
b) subtracting said LP version of said image from said image to create a high-pass (HP) version of said image;
c) applying a tone scale adjustment model to said LP version of said image to form an adjusted LP image;
d) applying a constant gain factor to said HP version of said image to form an adjusted HP image;
e) adding said adjusted LP image to said adjusted HP image to form a brightness enhanced image. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. An apparatus for adjusting an image for increased brightness, said apparatus comprising:
-
a) a low-pass (LP) filter for fling an image and creating a LP version of said image;
b) a tone scale adjustment model for adjusting said LP version of said image thereby creating an adjusted LP image;
c) a processor for subtracting said LP version of said image from said image to create a HP version of said image;
d) a second processor for applying a constant gain factor to said high-pass (HP) version of said image to form an adjusted HP image;
e) an adder for adding said adjusted LP image to said adjusted HP image to form a brightness-enhanced image. - View Dependent Claims (17, 18, 19, 20)
-
Specification