System and method for determining a gamma curve of a display device
First Claim
Patent Images
1. A method of determining a gamma curve of a display device, the method comprising:
- identifying a region of interest of a display surface of the display device;
calculating a centroid of the region of interest;
applying a plurality of input levels to the display device to generate a corresponding plurality of displayed images on the display surface;
capturing at least one image of each of the displayed images with a camera; and
calculating a gamma curve of the display device based on the captured images and the centroid,wherein calculating a gamma curve comprises;
identifying a neighborhood region around the centroid; and
for each captured image, calculating an average value of pixels positioned within the identified neighborhood region, wherein the calculated average values represent output values of the gamma curve corresponding to the plurality of input levels.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of determining a gamma curve of a display device includes identifying a region of interest of a display surface of the display device. A centroid of the region of interest is calculated. A plurality of input levels is applied to the display device to generate a corresponding plurality of displayed images on the display surface. At least one image of each of the displayed images is captured with a camera. A gamma curve of the display device is calculated based on the captured images and the centroid.
-
Citations
18 Claims
-
1. A method of determining a gamma curve of a display device, the method comprising:
-
identifying a region of interest of a display surface of the display device; calculating a centroid of the region of interest;
applying a plurality of input levels to the display device to generate a corresponding plurality of displayed images on the display surface;capturing at least one image of each of the displayed images with a camera; and calculating a gamma curve of the display device based on the captured images and the centroid, wherein calculating a gamma curve comprises; identifying a neighborhood region around the centroid; and for each captured image, calculating an average value of pixels positioned within the identified neighborhood region, wherein the calculated average values represent output values of the gamma curve corresponding to the plurality of input levels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A system for determining a gamma curve of a display device, comprising:
-
a first controller configured to apply a plurality of input levels to the display device to generate a corresponding plurality of displayed images on a display surface of the display device; a camera configured to capture at least one image of each of the displayed images; and a second controller configured to identify a region of interest of the display surface, calculate a centroid of the region of interest, and calculate a gamma curve of the display device based on the captured images and the centroid'"'"' wherein the second controller is configured to identify a neighborhood region around the centroid, and, for each captured image, calculate an average value of pixels positioned within the identified neighborhood region, wherein the calculated average values represent output values of the gamma curve corresponding to the plurality of input levels. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. A computer-readable medium having computer-executable instructions for performing a method of determining a gamma curve of a display device, the method comprising:
-
calculating a centroid of a region of interest of a display surface; identifying a neighborhood region around the centroid; applying a plurality of input levels to the display device to generate a corresponding plurality of displayed images on the display surface; causing at least one image of each of the displayed images to be captured with a camera; and for each captured image, calculating an average value of pixels positioned within the identified neighborhood region, wherein the calculated average values represent output values of a gamma curve corresponding to the plurality of input levels.
-
Specification