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Method for enhancing image details on basis of multiscale combined bilateral grid smooth model

A multi-scale, bilateral technology, applied in the field of image processing, which can solve the problems of low processing efficiency, unsatisfactory detail enhancement effect, and high time complexity

Inactive Publication Date: 2012-11-21
SUN YAT SEN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The existing technical solutions all have their own shortcomings. For example, the image enhancement method based on the trilateral filter has high time complexity and low processing efficiency, while the image enhancement method based on the Gaussian filter has a fast processing speed, but it is not very effective in detail enhancement. ideal

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  • Method for enhancing image details on basis of multiscale combined bilateral grid smooth model
  • Method for enhancing image details on basis of multiscale combined bilateral grid smooth model
  • Method for enhancing image details on basis of multiscale combined bilateral grid smooth model

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Embodiment Construction

[0031] 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 only some, not all, embodiments of the present invention. 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.

[0032] The purpose of the present invention is to achieve better edge preservation, noise smoothing and detail enhancement effects at a faster speed, so that the image has higher display quality and gives people more realistic and more appealing visual effects.

[0033] The present invention provides an image detail enhancement method based on a multi-scale joint bilateral grid smoothing model, the specific process is as follows figure 1 shown, including the follow...

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Abstract

The invention discloses a method for enhancing image details on basis of a multiscale combined bilateral grid smooth model. The method comprises of obtaining a base layer through the combined bilateral grid smooth model, and taking a difference image of an input image and a base layer image as a detail layer; solving the base layer images and detail layer images in a multiscale manner; and taking n base layer images and detail layer images which are solved in the previous step as input, and synthetizing an image Ienhance with enhanced details through a designed detail enhancement module. The method is used for more quickly realizing the effects of better edge preservation, smooth noise and detail enhancement, the image is enabled to have higher display quality, so a visual effect with more reality and more infectivity is provided for a user.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image detail enhancement method based on a multi-scale joint bilateral grid smoothing model. Background technique [0002] With the increasing popularity of consumer and professional digital cameras, massive amounts of image data are being generated. However, due to the influence of scene conditions, many images taken in high dynamic range scenes, dim environments or special light conditions have poor visual effects, and post-enhancement processing is required to compress or stretch the dynamic range or extract consistent color perception to meet the requirements of clear display. Require. [0003] Image detail enhancement refers to a kind of processing of existing images according to the requirements of the application to highlight certain information in the image, weaken or remove some unnecessary information, and obtain images that are more practical for specific ...

Claims

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Application Information

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IPC IPC(8): G06T5/00
Inventor 周凡罗笑南黄鹏孟思明林格
Owner SUN YAT SEN UNIV
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