High dynamic range images from low dynamic range images
First Claim
Patent Images
1. A method for displaying an image comprising:
- (a) receiving an image having a first luminance dynamic range;
(b) modifying said image to a second luminance dynamic range free from being based upon other images, wherein said second dynamic range is greater than said first dynamic range; and
(c) displaying said modified image a display.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for displaying an image includes receiving an image having a first luminance dynamic range and modifying the image to a second luminance dynamic range free from being based upon other images, where the second dynamic range is greater than the first dynamic range. The modified image is displayed on a display.
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Citations
23 Claims
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1. A method for displaying an image comprising:
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(a) receiving an image having a first luminance dynamic range;
(b) modifying said image to a second luminance dynamic range free from being based upon other images, wherein said second dynamic range is greater than said first dynamic range; and
(c) displaying said modified image a display. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A display having a light valve comprising:
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(a) receiving an image signal having a first luminance dynamic range and first digital code value dynamic range;
(b) modifying said image signal to a second luminance dynamic range in a non-linear manner and a second digital code value dynamic range, where said second luminance dynamic range is greater than said first luminance dynamic range and said second digital code value is greater than said first digital code value dynamic range;
(c) display said modified image signal on said display. - View Dependent Claims (9, 10, 11, 12)
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13. A method for displaying an image on a display comprising:
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(a) receiving an image having at least one of;
(i) a first dynamic range;
(ii) a first black point;
(iii) a first white point;
(b) modifying said image to a respective at least one of;
(i) a second dynamic range;
(ii) a second black point;
(iii) a second white point;
(c) wherein said second dynamic range is greater than said first dynamic range, said second black point is different than said first black point, and said second white point is different than said first white point;
(d) wherein two different images are received, each of which has a different at least one of said first dynamic range, said first black point, and said first white point, that are said modified to the same respective said second dynamic range, said second black point, and said second white point;
(e) displaying said modified image on said display. - View Dependent Claims (14, 15, 16, 17)
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18. A method for displaying an image comprising:
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(a) receiving an image having a first dynamic range;
(b) modifying said image to a second dynamic range, wherein said second dynamic range is greater than said first dynamic range, wherein the lower range of said first dynamic range is mapped to the lower range of said second dynamic range with a first function, wherein the higher dynamic range of said first dynamic range is mapped to the higher range of said second dynamic range with a second function, wherein said first function has a denser mapping than said second function;
(c) displaying said modified image a display. - View Dependent Claims (19)
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20. A method for modifying an image to be displayed on a display comprising:
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(a) receiving an image;
(b) determining a substantially specular maximum of said image;
(c) determining a substantially diffuse maximum of said image;
(d) determining a mapping function based upon said substantial specular maximum and said substantial diffuse maximum;
(e) modifying said image based upon said mapping function to provide a modified image with an increased dynamic range;
(f) displaying said modified image on said display. - View Dependent Claims (21, 22, 23)
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Specification