An analog gamma correction method for high dynamic range applications

Yuan Cao; Amine Bermak

doi:10.1109/SOCC.2011.6085112

An analog gamma correction method for high dynamic range applications

Yuan Cao^*, Amine Bermak

^*Corresponding author for this work

Hong Kong University of Science and Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

7 Citations (Scopus)

Abstract

In this paper, a flexible analog gamma correction technology has been proposed. In order to represent images on modern display systems with proper contrast, gamma correction is required to encode these input images. Conventional gamma corrections are performed in the digital domain. However, due to the limitation of the ADC resolution, the image quality with low level luminance is significantly degraded. In this proposed method, the adjustment of the implementation for the gamma correction in a design flow integrates this image processing with A/D conversion at the same time. By this approach, the quantization noise of the ADC is not amplified by gamma correction. Furthermore, the hardware area and power consumption can be reduced.

Original language	English
Title of host publication	Proceedings - IEEE International SOC Conference, SOCC 2011
Pages	318-322
Number of pages	5
DOIs	https://doi.org/10.1109/SOCC.2011.6085112
Publication status	Published - 2011
Externally published	Yes
Event	24th IEEE International System on Chip Conference, SOCC 2011 - Taipei, Taiwan, Province of China Duration: 26 Sept 2011 → 28 Sept 2011

Publication series

Name	International System on Chip Conference
ISSN (Print)	2164-1676
ISSN (Electronic)	2164-1706

Conference

Conference	24th IEEE International System on Chip Conference, SOCC 2011
Country/Territory	Taiwan, Province of China
City	Taipei
Period	26/09/11 → 28/09/11

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10.1109/SOCC.2011.6085112

Cite this

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title = "An analog gamma correction method for high dynamic range applications",

abstract = "In this paper, a flexible analog gamma correction technology has been proposed. In order to represent images on modern display systems with proper contrast, gamma correction is required to encode these input images. Conventional gamma corrections are performed in the digital domain. However, due to the limitation of the ADC resolution, the image quality with low level luminance is significantly degraded. In this proposed method, the adjustment of the implementation for the gamma correction in a design flow integrates this image processing with A/D conversion at the same time. By this approach, the quantization noise of the ADC is not amplified by gamma correction. Furthermore, the hardware area and power consumption can be reduced.",

author = "Yuan Cao and Amine Bermak",

year = "2011",

doi = "10.1109/SOCC.2011.6085112",

language = "English",

isbn = "9781457716164",

series = "International System on Chip Conference",

pages = "318--322",

booktitle = "Proceedings - IEEE International SOC Conference, SOCC 2011",

note = "24th IEEE International System on Chip Conference, SOCC 2011 ; Conference date: 26-09-2011 Through 28-09-2011",

}

Cao, Y & Bermak, A 2011, An analog gamma correction method for high dynamic range applications. in Proceedings - IEEE International SOC Conference, SOCC 2011., 6085112, International System on Chip Conference, pp. 318-322, 24th IEEE International System on Chip Conference, SOCC 2011, Taipei, Taiwan, Province of China, 26/09/11. https://doi.org/10.1109/SOCC.2011.6085112

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AB - In this paper, a flexible analog gamma correction technology has been proposed. In order to represent images on modern display systems with proper contrast, gamma correction is required to encode these input images. Conventional gamma corrections are performed in the digital domain. However, due to the limitation of the ADC resolution, the image quality with low level luminance is significantly degraded. In this proposed method, the adjustment of the implementation for the gamma correction in a design flow integrates this image processing with A/D conversion at the same time. By this approach, the quantization noise of the ADC is not amplified by gamma correction. Furthermore, the hardware area and power consumption can be reduced.

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ER -

An analog gamma correction method for high dynamic range applications

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