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Image compensation device, image processing apparatus and methods thereof

a compensation device and image technology, applied in image enhancement, image analysis, color signal processing circuits, etc., can solve the problems of user's inability to obtain original chromaticity photos, difficult to compensate photos whose chromaticity is non-uniformly changed, etc., and achieve the effect of effective processing

Active Publication Date: 2016-02-23
HEWLETT PACKARD DEV CO LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a way to make pictures look better by using a special scoring system that compensates for fading. This can be done by a computer program that adjusts the picture to make it look better. This technology can help make old pictures look better and improve the overall quality of images.

Problems solved by technology

However, even in such a situation, a considerable number of users print and use photos.
However, as time passes, chromaticity of a photo is changed, and thus the photo becomes faded generally.
Thus, if a user does not have the original data or film of a faded photo, the user may not obtain a photo having original chromaticity.
Thus, it is difficult to compensate a photo of which chromaticity is nonuniformly changed.

Method used

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  • Image compensation device, image processing apparatus and methods thereof
  • Image compensation device, image processing apparatus and methods thereof
  • Image compensation device, image processing apparatus and methods thereof

Examples

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Embodiment Construction

[0059]Reference will now be made in detail to exemplary embodiments of the present general inventive concept, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The exemplary embodiments are described below in order to explain the present general inventive concept by referring to the figures.

[0060]FIGS. 1 and 2 are block diagrams illustrating an image compensating apparatus, according to various exemplary embodiments of the inventive concept. The image compensating apparatus of FIGS. 1 and 2 may be embodied as a single independent electronic device, or alternatively, may be embodied as a module, a unit, or a chip, which is installed in a single independent electronic device.

[0061]The image compensating apparatus 100 of FIGS. 1 and 2 may compensate an image by using a compensating method based on converted color space including, but not limited to an L-Cyb-Crg color space and a RGB color space.

[0062]I...

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PUM

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Abstract

An image compensating apparatus includes an input unit to receive input of an photo image, a Gaussian filtering unit to perform Gaussian filtering on the photo image, a division-map generating unit to convert the photo image on which the Gaussian filtering is performed into a color space including a plurality of color components and then generating a chromaticity division-map based on a color coordinate value in the color space, a calculating unit to calculate average chromaticity of each respective region by using the chromaticity division-map, and a compensating unit to compensate chromaticity of each respective region of the photo image by using the average chromaticity of each respective region. Accordingly, a faded image input to the input unit may effectively be compensated.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority under 35 U.S.C. §119(a) from Korean Patent Application No. 10-2011-0035909, filed on Apr. 18, 2011, in the Korean Intellectual Property Office, the contents of which are incorporated herein by reference in its entirety.BACKGROUND[0002]1. Field of the General Inventive Concept[0003]The present general inventive concept relates to a method and apparatus to compensate an image, and a method and apparatus to process an image, and more particularly, to a method and apparatus to compensate a faded image, and a method and apparatus to process a faded image.[0004]2. Description of the Related Art[0005]Photos have been used for a long period of time as a medium for recalling the past. Recently, as digital cameras have been rapidly spread, many users store photos in a memory, or upload photos to a webpage without printing photos, in order to see photos. However, even in such a situation, a considerable number of use...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G06K9/00H04N1/62H04N1/60H04N1/40G06T5/00H04N23/12
CPCH04N1/62G06T5/008H04N1/40006H04N1/6091G06K9/00G06T2207/10024G06T5/94H04N9/64H04N1/46H04N23/12
Inventor KIM, KYEONG-MANKIM, HYUN-CHEOLCHO, MIN-KIOH, HYUN-SOOSONG, EUN-AHHA, YEONG-HOKIM, DAE-CHULKYUNG, WANG-JUN
Owner HEWLETT PACKARD DEV CO LP