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Image processing device and method, computer-readable recording medium containing program

A technology of an image processing device and an image acquisition device, which is applied in the field of computer-readable recording media, and can solve problems such as image blackening

Inactive Publication Date: 2009-11-18
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the hue of the dark areas is not reproduced, the tendency of the output image to become dark (undesired color saturation) increases

Method used

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  • Image processing device and method, computer-readable recording medium containing program
  • Image processing device and method, computer-readable recording medium containing program
  • Image processing device and method, computer-readable recording medium containing program

Examples

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Embodiment Construction

[0042] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. figure 1 is a schematic block diagram illustrating the configuration of a digital camera to which the image processing device according to the first embodiment of the present invention is applied. like figure 1 As shown, the digital camera 1 according to the first embodiment includes an imaging unit 2, an imaging control unit 3, a signal processing unit 4, a compression / decompression processing unit 5, a frame memory 6, a medium control unit 7, an internal memory 8, and a display control unit Unit 9.

[0043] figure 2 The configuration of the imaging unit 2 is illustrated. like figure 2 As shown, the imaging unit 2 includes a lens 20 , a light control aperture 21 , a shutter 22 , a CCD 23 , an analog front end (AFE) 24 and an A / D conversion unit 25 .

[0044] The lens 20 is formed of a plurality of lenses having respective functions, such as a focus ...

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Abstract

The invention discloses an image processing device and a method, a computer-readable recording medium containing a program. The image processing device include: an image obtaining unit for obtaining a plurality of images having different exposure values; an exposure adjustment unit for carrying out exposure adjustment processing by applying bit extension to each of the images and adjusting exposure values of the images to an exposure value of a first image, which has the lowest exposure value, of the images; and a composition unit for generating a composite image by combining the images subjected to the exposure adjustment processing.

Description

technical field [0001] The present invention relates to an image processing apparatus and an image processing method for improving tone reproduction of an image, and to a computer-readable recording medium containing a program for causing a computer to execute the image processing method. Background technique [0002] Generally, in an imaging device such as a digital camera, an image signal of a captured image output from an image acquisition device is subjected to various signal processing operations to improve the image quality of the output image, such as white balance correction, tone conversion, shading correction, exposure correction . But these signal processing operations add gain to the imaging signal, reducing resolution. Therefore, it is necessary to make the resolution of the image to be signal processed higher than that of the output image. In the imaging device, in order to output an image with an 8-bit gray scale, the analog imaging signal output from the im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/235H04N5/335G06T5/00H04N1/407H04N23/75H04N23/76
CPCH04N5/35536H04N5/235H04N23/70H04N25/58H04N23/951
Inventor 仓桥秀和田中诚二
Owner FUJIFILM CORP
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