Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and apparatus for improving image quality

An image quality and image technology, applied in image enhancement, image analysis, image data processing and other directions, can solve the problems of distortion of the display screen effect, and the effect of the screen effect reduces the viewing experience of the human eye.

Inactive Publication Date: 2016-04-20
XIDIAN UNIV
View PDF3 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found at least the following problems in the prior art: although the brightness compensation of the image by increasing the screen brightness can also improve the display quality of the device under ambient light, simply increasing the brightness will easily lead to distortion of the display effect. At the same time, the high brightness and distorted picture effect reduce the viewing experience of the human eye

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
  • Method and apparatus for improving image quality
  • Method and apparatus for improving image quality
  • Method and apparatus for improving image quality

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0134] The present invention provides a method for improving image quality, such as figure 1 As shown, the method for improving image quality includes:

[0135] 101. Perform color space conversion on an original image to obtain a converted image, and extract a brightness component in the converted image as an input image.

[0136] 102. Detect the current ambient light intensity.

[0137] 103. If the current ambient light intensity is less than a preset threshold, perform contrast enhancement processing on the input image based on a histogram correction method algorithm of logarithmic mapping to obtain a first output image.

[0138] 104. If the current ambient light intensity is not less than a preset threshold, construct constraints including image brightness, image quality, and image compensation, and process the input image based on the constraints to obtain a second output image.

[0139] In practice, in order to solve the problem in the prior art that the display effect ...

Embodiment 2

[0276] The present invention provides a device 2 for improving image quality, the device 2 for improving image quality, such as figure 2 shown, including:

[0277] The conversion unit 21 is configured to perform color space conversion on the original image to obtain a converted image, and extract a luminance component in the converted image as an input image.

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, which belongs to the image display field, discloses a method and apparatus for improving an image quality. After color space conversion is carried out on an original image, a current environment light intensity is detected; when the current environment light intensity is lower than a preset threshold value, contrast enhancement processing is carried out on the image to obtain a first output image; under the circumstance that the current environment light intensity is not less than the preset threshold value, a constraint condition is constructed for the image; and according to a solution to the constraint condition, polynomial processing is carried out on the image to obtain a second output image. Compared with the prior art, the obtained first output image or second output image has the high image quality, so that a defect of a poor display effect of display equipment under ambient light can be overcome. Meanwhile, loss compensation and contrast and brightness adjustment are added during the processing process, thereby guaranteeing the fidelity of the displayed image and improving the watching experience of the human eyes.

Description

technical field [0001] The invention belongs to the field of image display, in particular to a method and device for improving image quality. Background technique [0002] Display technology is a window for human-computer connection and information display, and is widely used in various fields such as industry, military, transportation, entertainment, education, aerospace, and medical treatment. The image quality of display devices, especially mobile display devices (such as mobile phones, notebook computers, car video, etc.), is deeply affected by the ambient light. When the display device is placed outdoors with strong ambient light, the picture will become darker, the color will become lighter, and the readability will be poor, which is what we usually call "reflective" phenomenon. This phenomenon caused by ambient light brings great inconvenience to our daily life. [0003] The solutions in the prior art are mainly divided into two types: (1) reducing the reflectivity ...

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
IPC IPC(8): G06T5/00
CPCG06T2207/10024G06T2207/10004G06T5/00
Inventor 郑喆坤王露杜元甲王舒瑶
Owner XIDIAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com