Unlock instant, AI-driven research and patent intelligence for your innovation.

Image correction method and image correction device

An image and image data technology, applied in the field of image correction methods and image correction devices, can solve problems such as easy distortion in high-frequency signal details, and achieve the effect of overcoming easy distortion

Active Publication Date: 2017-12-26
AU OPTRONICS CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention uses an adaptive gamma correction program to deal with pixel grayscale values ​​of different frequencies, so as to overcome the problem of easy distortion of high-frequency signals or detailed content in image files

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image correction method and image correction device
  • Image correction method and image correction device
  • Image correction method and image correction device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The detailed features of the present invention are described in the following embodiments, the content of which is sufficient to enable any person skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the disclosed content, claims and drawings of this specification, anyone skilled in the art A skilled person can easily understand the related objects and advantages of the present invention. The following examples further illustrate various aspects of the present invention, but do not limit the scope of the present invention in any way.

[0043] figure 1 It is a block diagram of an image correction device 10 according to an embodiment of the present invention. Such as figure 1 As shown, the image correction device 10 includes an image extraction unit 110 , a frequency domain analysis unit 120 and an adaptive correction unit 130 . The frequency domain analysis unit 120 is coupled to the image extra...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an image correction method and an image correction device. The image correction method includes the following steps. A grayscale value corresponding to one of the plurality of pixels in the image data and a frequency domain value corresponding to the grayscale value are obtained. It is judged whether the frequency domain value is smaller than the first critical value. When the frequency domain value is smaller than the first critical value, the gray scale value is output after performing an adaptive gamma correction procedure according to the frequency domain value. When the frequency domain value is not less than the first critical value, the gray scale value is directly output. Therefore, the problem of easy distortion of high-frequency signals or detailed content in image files is overcome.

Description

technical field [0001] The invention relates to an image correction method and an image correction device, and in particular to an image correction method and an image correction device with an adaptive gamma correction program. Background technique [0002] With the trend of the Internet and the advancement of computer hardware, various imaging devices such as scanners, digital cameras, digital video cameras and various display panels are becoming more and more popular. [0003] Most display systems have a non-linear display characteristic called gamma response, which makes the displayed brightness of the display system not perfectly proportional to the input voltage. In view of the characteristics of the gamma response, the image signal is usually further corrected using the gamma curve before displaying, so that the non-linear characteristics of the display system can be reversely compensated, so as to obtain a more realistic and richer image presentation. [0004] Howev...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/202H04N9/69
CPCG06T5/10G06T5/20G06T2207/20012G06T2207/10024G06T5/94G06T2207/20004G06T2207/20048G06T2207/20172G06T2207/30168G06T5/00
Inventor 许庭玮叶昭纬陈建文廖乾煌
Owner AU OPTRONICS CORP