18053304. CONTENT ADAPTED BLACK LEVEL COMPENSATION FOR A HDR DISPLAY BASED ON DYNAMIC METADATA simplified abstract (Samsung Electronics Co., Ltd.)

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CONTENT ADAPTED BLACK LEVEL COMPENSATION FOR A HDR DISPLAY BASED ON DYNAMIC METADATA

Organization Name

Samsung Electronics Co., Ltd.

Inventor(s)

Chenguang Liu of Tustin CA (US)

William Mandel of Moorpark CA (US)

Dung Trung Vo of Costa Mesa CA (US)

McClain C. Nelson of Anaheim CA (US)

Soojung Hyun of Tustin CA (US)

CONTENT ADAPTED BLACK LEVEL COMPENSATION FOR A HDR DISPLAY BASED ON DYNAMIC METADATA - A simplified explanation of the abstract

This abstract first appeared for US patent application 18053304 titled 'CONTENT ADAPTED BLACK LEVEL COMPENSATION FOR A HDR DISPLAY BASED ON DYNAMIC METADATA

Simplified Explanation

The abstract describes a method for adaptively compensating for the black level of a display device based on the metadata of an input image. The method involves determining the black level and peak luminance value of the display device, as well as the distribution of luminance values in the input image. A tone mapping function is then determined based on these parameters to generate a tone-mapped image that compensates for the black level of the display device.

  • The method determines metadata of an input image, such as the distribution of luminance values.
  • It also determines the black level and peak luminance value of a display device.
  • A tone mapping function is then calculated based on the metadata, black level, and peak luminance value.
  • The tone mapping function is applied to the input image to generate a tone-mapped image.
  • The tone-mapped image is provided to the display device for presentation.

Potential Applications

  • This technology can be applied in various display devices, such as televisions, computer monitors, and mobile devices.
  • It can enhance the visual quality of images by adaptively compensating for the black level of the display device.
  • The method can be used in image and video editing software to improve the display of content on different devices.

Problems Solved

  • The technology addresses the problem of inconsistent image quality on different display devices.
  • It solves the issue of images appearing too dark or washed out due to variations in black levels and peak luminance values.
  • The method ensures that the displayed image accurately represents the intended visual content.

Benefits

  • The adaptive compensation for black levels improves the overall visual experience for users.
  • It allows for more accurate representation of images and videos on different display devices.
  • The method enhances the contrast and dynamic range of displayed content, resulting in more vibrant and realistic visuals.


Original Abstract Submitted

One embodiment provides a method comprising determining metadata corresponding to an input image, determining a black level of a display device and a peak luminance value of the display device, and determining a tone mapping function that adaptively compensates for the black level of the display device based on the metadata, the black level of the display device, and the peak luminance value of the display device. The metadata comprises a distribution of luminance values in the input image. The black level of the display device and the peak luminance value of the display device represent a lowest luminance value and a highest luminance value, respectively, achievable on the display device. The method further comprises applying the tone mapping function to the input image to generate a tone-mapped image that adaptively compensates for the black level of the display device and provided to the display device for presentation.

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