Display device and method of controlling the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSeung-Hoon Han, Gui Won Seo, Sang Wook Lee, Chang Won Kim
Life of this patent
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Abstract
A display device, including a content receiving unit configured to receive a high dynamic range image, an image processing unit configured to detect a first region whose luminance value is equal to or greater than a reference luminance value within the high dynamic range image and perform tone mapping on an image of the first region based on feature information of the image of the first region, and a display unit configured to display a low dynamic range image on which the tone mapping is performed.
Claims25
A display device, comprising:
- a content receiving unit configured to receive a high dynamic range image and luminance information of the high dynamic range image;
- an image processing unit configured to perform tone mapping based on the luminance information to convert the high dynamic range image into a low dynamic range image;
- and
- a display unit configured to display the low dynamic image,
- wherein the luminance information includes an image maximum luminance value and an image minimum luminance value of the high dynamic range image.
A method of controlling a display device, comprising:
- receiving a high dynamic range image and luminance information of the high dynamic range image;
- performing tone mapping based on the luminance information to convert the high dynamic range image into a low dynamic range image;
- and
- displaying the low dynamic image,
- wherein the luminance information includes an image maximum luminance value and an image minimum luminance value of the high dynamic range image.
A method, comprising:
- determining a first region of an image having a luminance higher than a second region of the image;
- determining first and second mapping functions corresponding to the first and second regions, where the first mapping function enhances one or more image features and the second mapping function increases brightness;
- and
- mapping the image using the first and second mapping functions responsive to luminance to preserve brightness of the image of the second region and preserve feature information of the image of the first region.
Dependencies are inferred from the claim text.