Method and apparatus for image data transformation

A technique of image data, electronic images, applied in fields including tone and/or gamut mapping, capable of solving various problems

Active Publication Date: 2013-12-04
DOLBY LAB LICENSING CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0035] Therefore, the same image content may appear differently when played back on different monitors

Method used

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  • Method and apparatus for image data transformation
  • Method and apparatus for image data transformation
  • Method and apparatus for image data transformation

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Embodiment Construction

[0055] Throughout the following description, specific details are set forth in order to provide a better understanding of the present invention. However, the invention may be practiced without these details. In other instances, well known elements have not been shown or described in detail to avoid unnecessarily obscuring the invention. Accordingly, the specification and drawings are to be regarded in an illustrative rather than a restrictive sense.

[0056] figure 1 A video distribution pipeline 20 is shown schematically. Raw video data 22 is acquired and edited at editing suite 23 to provide a raw video production 24 . A colorist (e.g., a person using the tools provided by the color adjustment station through a suitable user interface) makes adjustments to the tone and / or color in the original video production at the color adjustment station 26 to achieve a color-adjusted video production 27 . The color adjustment station 26 includes a professional monitor 30 on which ...

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Abstract

Image data is transformed for display on a target display. A sigmoidal transfer function provides a free parameter controlling min-tone contrast. The transfer function may be dynamically adjusted to accommodate changing ambient lighting conditions. The transformation may be selected so as to automatically adapt image data for display on a target display in a way that substantially preserves creative intent embodied in the image data. The image data may be video data.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application 61 / 453,107, filed March 15, 2011, and U.S. Provisional Patent Application No. 61 / 567,784, filed December 7, 2011, which for all purposes The entire content of the application is incorporated herein by reference. [0003] This application is also related to International Patent Application No. PCT / US2012 / 027267, filed March 1, 2012, which is incorporated herein by reference. technical field [0004] The present invention relates to displaying and processing images. The invention particularly relates to methods and apparatus involving tone and / or gamut mapping. Methods and apparatus as described herein can be used to provide high quality images on a target display while preserving creative intent. The present invention may be embodied in, for example, electronic displays (such as televisions, computer monitors, media players, video-capable cellular ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/62H04N1/60H04N9/73
CPCH04N1/62H04N9/67H04N1/6088H04N9/68H04N1/6027G06T11/001G09G5/02H04N1/60H04N9/73G09G2320/0276G09G2320/066G09G2320/0666
Inventor A·巴勒斯泰德A·科斯蒂恩G·J·沃德
Owner DOLBY LAB LICENSING CORP
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