Image Processing Device,Image Processing Method and Program

An image processing device and image technology, which is applied in image data processing, image enhancement, image analysis, etc., can solve the problem that image structure components and residuals cannot be well restored, and achieve the effect of suppressing image quality degradation and rapid correction

Inactive Publication Date: 2011-06-29
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the residual deconvolution technique of the related art, if there is an error in the PSF, the structural components of the image and the residual (residual part) cannot be well restored, and more ringing may be generated

Method used

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  • Image Processing Device,Image Processing Method and Program
  • Image Processing Device,Image Processing Method and Program
  • Image Processing Device,Image Processing Method and Program

Examples

Experimental program
Comparison scheme
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no. 1 example

[0043] 2. Modification 1

no. 2 example

[0045] 4. Modification 2

[0046] 1. The first embodiment

[0047] Configuration of information processing device

[0048] figure 1 is a block diagram showing a first configuration example of the information processing apparatus 1 according to the first embodiment of the present invention.

[0049] An image compressed by Joint Photographic Experts Group (JPEG) compression that appears blurred due to hand shake at the time of shooting is an input blurred image to the information processing apparatus 1 .

[0050] The information processing apparatus 1 separates the input blurred image into a plurality of blocks g, and initially estimates, in each block, a point spread function h representing blur occurring in the block g and a point spread function h representing the block g having a large value, a flat portion, and an edge The structure of the components of f.

[0051] The information processing apparatus 1 repeatedly updates the point spread function h and the structure f ...

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Abstract

The invention refers to an image processing device, image processing method and program. the image processing device includes a texture extraction unit to extract a texture component of a g corrected image in which blur or defocus of a structure component of a g image including a g component of an input image is corrected, a mask generation unit to generate a mask image in which the synthesis amount of the texture component of the g corrected image to an r corrected image and a b corrected image is decreased for a region in which at least one of correlation between a variation of the g component and a variation of the r component or correlation between the variation of the g component and a variation of the b component is weak, and a synthesis unit to synthesize the texture component of the g corrected image to the r corrected image and the b corrected image using the mask image.

Description

technical field [0001] The present invention relates to an image processing device, an image processing method, and a program, and more particularly, to an image processing device, an image processing method, and a program suitable for use when correcting blurred or defocused images. Background technique [0002] In the related art, there is a correction technique that corrects hand shake or out-of-focus (hereinafter simply referred to as defocus) that occurs in a captured image. [0003] For example, L.B. Lucy and William Hardley Richardson proposed the Richardson-Lucy method. However, in this method, when the inverse problem is solved using the spectrum of zero points falling on the frequency axis of the point spread function (PSF), noise amplification, ringing generation, etc. may be found at the zero points. In addition, if the PSF is not obtained accurately, noise amplification, ringing generation, etc. may increase more at the zero point. [0004] If the PSF is obtai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
CPCG06T5/003G06T2207/10024
Inventor 渡边真司
Owner SONY CORP
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