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Apparatus and method of controlling saturation of color image

An image processing device and saturation technology, applied to color TV parts, color TV, image enhancement, etc., can solve the problem of not being able to obtain clear and vivid color images

Inactive Publication Date: 2005-12-14
SAMSUNG ELECTRONICS CO LTD
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  • Summary
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Problems solved by technology

Therefore, clear and vivid color images cannot be obtained

Method used

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  • Apparatus and method of controlling saturation of color image
  • Apparatus and method of controlling saturation of color image
  • Apparatus and method of controlling saturation of color image

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Embodiment Construction

[0025] Reference will now be made in detail to embodiments of the inventive concept, examples of which are illustrated in the accompanying drawings, wherein like numerals refer to like elements throughout. The embodiments are described below in order to explain the inventive concepts while referring to the figures.

[0026] Figure 4 is a schematic block diagram illustrating a saturation control device according to an embodiment of the inventive concept. The saturation control device includes a saturation calculation unit 100, a histogram calculation unit 102, a histogram analysis unit 400, a total gain calculation unit 402, a mode gain calculation unit 112, a final gain calculation unit 114, a color gain calculation unit 116, and a saturation control unit Unit 118. Although the saturation control device may also include other configurations than the above-mentioned units, for convenience, only Figure 4 The construction and its operation shown in .

[0027] The saturation...

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Abstract

An apparatus of adaptively controlling saturation of an input image according to characteristics of the input image. The apparatus has a saturation calculating unit to sequentially calculate saturation values of each pixel composing an input image, and to output the calculated saturation values, a histogram analysis unit to accumulate interval values, each interval value corresponding to the saturation value of pixel and being allocated to at least one of two intervals, to calculate a gain corresponding to a cumulative value of each interval, and to output the gain, and a total gain calculating unit to calculate a total gain from the transferred gains of the respective intervals.

Description

technical field [0001] The inventive concept relates to an apparatus and method for controlling saturation of a color image, and more particularly, to an apparatus and method for controlling saturation of an input color image, thereby providing improved image quality. Background technique [0002] In general, conventional image processing devices have a problem of increasing color saturation regardless of characteristics of an input image. For example, if a user increases the saturation of a background image of a scene displayed on a TV screen, the skin color of a person looks oversaturated and unnatural. [0003] figure 1 It is a schematic block diagram of an existing color saturation control device. The color saturation control device includes a saturation calculation unit 100, a histogram calculation unit 102, a peak saturation calculation unit 104, an average saturation calculation unit 106, a peak gain calculation unit 108, an average gain calculation unit 110, and a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00G06T5/40H04N5/20H04N9/64H04N9/68
CPCH04N9/68H04N9/64
Inventor 金在元严震燮金文喆
Owner SAMSUNG ELECTRONICS CO LTD
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