ELECTRONIC DEVICE PERFORMING IMAGE CONVERSION, AND METHOD THEREOF
First Claim
1. An electronic device, comprising:
- a receiving unit for receiving a first image from a source device;
a decoding unit for decoding luminance information of the first image;
a converting unit for converting a dynamic range of the first image on the basis of the decoded luminance information, using a mapping function; and
a display unit for displaying a second image having the converted dynamic range on a display,wherein the mapping function is a curve function including a plurality of points determined on the basis of a characteristic of a change in luminance of a display of the source device, and a characteristic of a change in luminance of a scene of the first image.
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Abstract
An electronic device and an image conversion method of the electronic device, the electronic device comprising: a receiving unit for receiving a first image from a source device; a decoding unit for decoding brightness information of the first image; a converting unit for converting a dynamic range of the first image on the basis of the decoded brightness information, using a mapping function; and a display unit for displaying a second image having the converted dynamic range on a display, wherein the mapping function is a curve function including a plurality of points determined on the basis of the first image, a characteristic of a change in brightness of a display of the source device, and a characteristic of brightness of a scene of the first image. The present disclosure may generate, for example, a high dynamic range (HDR) image, which is improved from a standard dynamic range (SDR) image.
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Citations
15 Claims
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1. An electronic device, comprising:
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a receiving unit for receiving a first image from a source device; a decoding unit for decoding luminance information of the first image; a converting unit for converting a dynamic range of the first image on the basis of the decoded luminance information, using a mapping function; and a display unit for displaying a second image having the converted dynamic range on a display, wherein the mapping function is a curve function including a plurality of points determined on the basis of a characteristic of a change in luminance of a display of the source device, and a characteristic of a change in luminance of a scene of the first image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An image conversion method, comprising:
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receiving a first image from a source device; decoding luminance information of the first image; converting a dynamic range of the first image on the basis of the decoded luminance information, using a mapping function; and displaying a second image having the converted dynamic range on a display, wherein the mapping function is a curve function including a plurality of points determined on the basis of a characteristic of a change in luminance of a display of the source device, and a characteristic of a change in luminance of a scene of the first image. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification