Image formats and related methods and apparatuses
First Claim
Patent Images
1. A method for displaying an image on a target display, the method comprising:
- processing image data that has been reviewed on a reference display and encoded such that a predetermined image value of the image data corresponds to a predetermined mid-tone value displayed on the reference display, the processing comprising applying a mapping to the image data that maps the predetermined image value to the predetermined mid-tone value when viewed on the target display,wherein a dynamic range of the target display differs from a dynamic range of the reference display;
wherein the mapping sets the slope of the mid-tone region of a response function when viewed on the target display to match a corresponding mid tone region of a response function of the reference display; and
wherein the mapping comprises a mapping function given by;
1 Assignment
0 Petitions
Accused Products
Abstract
Image data may be color graded, distributed and viewed on target displays. Mappings that preserve mid-range points and mid-range contrast may be applied to view the image data for color grading and to prepare the image data for display on a target display. The image data may be expanded to exploit the dynamic range of the target display without affecting mid-tone values.
-
Citations
14 Claims
-
1. A method for displaying an image on a target display, the method comprising:
- processing image data that has been reviewed on a reference display and encoded such that a predetermined image value of the image data corresponds to a predetermined mid-tone value displayed on the reference display, the processing comprising applying a mapping to the image data that maps the predetermined image value to the predetermined mid-tone value when viewed on the target display,
wherein a dynamic range of the target display differs from a dynamic range of the reference display; wherein the mapping sets the slope of the mid-tone region of a response function when viewed on the target display to match a corresponding mid tone region of a response function of the reference display; and wherein the mapping comprises a mapping function given by; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- processing image data that has been reviewed on a reference display and encoded such that a predetermined image value of the image data corresponds to a predetermined mid-tone value displayed on the reference display, the processing comprising applying a mapping to the image data that maps the predetermined image value to the predetermined mid-tone value when viewed on the target display,
Specification