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

A Method for Adjusting Image Exposure Effect

A technology of image and exposure parameters, applied in the field of image processing, can solve the problem of inflexible post-processing of images

Active Publication Date: 2017-06-13
CHINA DIGITAL VIDEO BEIJING
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Generally, when exposure compensation is used for photography or video recording, it is carried out when the image is formed, and it is not flexible enough for the post-processing of the image.

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
  • A Method for Adjusting Image Exposure Effect
  • A Method for Adjusting Image Exposure Effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042] The embodiment of the present invention provides a method for adjusting the image exposure effect, such as figure 1 shown, including the following steps:

[0043] In step S101, a table of correspondences between exposure compensation values ​​and exposure parameters of images is preset.

[0044] Step S102, acquiring an exposure compensation value input by a user.

[0045] Step S103, acquiring exposure parameters according to the exposure compe...

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 embodiment of the present invention discloses a method for realizing the image exposure effect. The method includes the following steps: presetting the correspondence table between the exposure compensation value and the exposure parameter of the image; acquiring the exposure compensation value input by the user; The input exposure compensation value and the correspondence table obtain exposure parameters; and calculate the adjusted color space value of the image according to the exposure parameters and the original YUV color space value of the image. In the embodiment of the present invention, by simulating the exposure compensation value of the camera, the brightness value of the image in the YUV color space is adjusted to realize the adjustment of the exposure effect in the image processing.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for adjusting image exposure effect. Background technique [0002] Exposure compensation is also a method of exposure control, generally around ±2-3EV, if the ambient light source is dark, you can increase the exposure value (such as adjusting to +1EV, +2EV) to highlight the clarity of the picture. [0003] During the shooting process of a digital camera, if the shutter is pressed halfway, a picture similar to the final effect picture will be displayed on the LCD screen, and everything will be activated for focusing and exposure. The exposure at this time is the exposure of the final picture. If the picture is obviously brighter or darker, it means that the accuracy of the camera's automatic light metering has a large deviation, and exposure compensation must be forced. However, sometimes, the brightness displayed during shooting is different from the actual sh...

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): H04N5/235H04N5/243H04N9/04H04N23/76
Inventor 苏文涛
Owner CHINA DIGITAL VIDEO BEIJING
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