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Apparatus, method, and computer program for processing image, and recording medium storing the computer program

An image processing device and technology in the horizontal direction, applied in image communication, image enhancement, image data processing, etc., can solve problems such as noise appearance, image quality degradation, and enhancement of noise components

Inactive Publication Date: 2007-07-25
SONY GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The known contour enhancement circuit of FIG. 7 enhances high frequency components, rather than edge components, thereby enhancing noise components
This processing makes noise appear, resulting in lower image quality

Method used

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  • Apparatus, method, and computer program for processing image, and recording medium storing the computer program
  • Apparatus, method, and computer program for processing image, and recording medium storing the computer program
  • Apparatus, method, and computer program for processing image, and recording medium storing the computer program

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Embodiment Construction

[0025] FIG. 2 is a block diagram of an image pickup device 10 as an image processing device according to an embodiment of the present invention. In the image pickup apparatus 10, the image pickup device 11 is a charge-coupled device or a solid-state image pickup device, and outputs an optical image pickup result focused on an image surface through a lens (not shown).

[0026] The camera signal processor circuit 12 performs calculation processing, analog-to-digital conversion processing, gamma correction processing, white balance processing, and other processing on the image pickup result output from the image pickup device 11, and then outputs the luminance data Y1 and color difference Video data DV composed of data Cr and Cb. In this series of processing, the image processor 13 in the camera signal processor circuit 12 outputs the video data VD in which the outline of the image is enhanced and the contrast and sharpness are improved.

[0027] The image pickup device 10 displ...

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Abstract

An image processing apparatus includes a non-linear smoother for smoothing input video data with an edge component thereof preserved, and outputting smoothed video data, a subtractor for subtracting the smoothed video data from the input video data and outputting high-frequency component video data not containing the edge component, an outline extractor for extracting the edge component from the smoothed video data and outputting edge component video data, a first amplifier for varying a signal level of the edge component video data, a second amplifier) for varying a signal level of the high-frequency component video data not containing the edge component, and an adder for adding video data output from the first amplifier and video data output from the second amplifier to one of the smoothed video data and the input video data.

Description

technical field [0001] The present invention relates to an apparatus, method, computer program, and recording medium for processing images used, for example, in an image pickup apparatus. In particular, the present invention relates to a technique for outline enhancement without deteriorating image quality by separating edge components from input video data as a result of smoothing processing that retains their edge components, and by adjusting the level of input video data. ) to input video data. Background technique [0002] A video device for processing various video data enhances an outline in a corresponding image with an outline enhancement circuit to improve image quality. [0003] FIG. 7 is a block diagram of a typical known contour enhancement circuit 1 . In the contour enhancement circuit 1, a sharpness component extractor 2 including, for example, a high-pass filter, extracts and outputs high-frequency components from the input video signal Y1, thereby extractin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/208H04N1/409G06T5/20H04N5/243
CPCH04N5/208H04N5/142H04N1/409
Inventor 横山一树稻田哲治浅野光康上田和彦
Owner SONY GRP CORP
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