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A color correction method for structurally consistent stereoscopic images based on gradient preservation

A color correction and stereoscopic image technology, applied in image enhancement, image analysis, image data processing, etc., can solve the problems of reducing image fidelity and losing detail information, and achieve the effect of improving fidelity

Active Publication Date: 2019-03-12
FUZHOU UNIV
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Problems solved by technology

This algorithm reduces the edge structure of the image to a certain extent, but at the same time it also loses the detail information in the area and reduces the fidelity of the image.

Method used

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  • A color correction method for structurally consistent stereoscopic images based on gradient preservation
  • A color correction method for structurally consistent stereoscopic images based on gradient preservation
  • A color correction method for structurally consistent stereoscopic images based on gradient preservation

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0038] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combina...

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Abstract

The invention relates to a color correction method for structurally consistent stereoscopic images based on gradient preservation. Firstly, SIFT feature extraction and matching are respectively used for feature extraction and pixel matching of a reference image and a target image to obtain a structured image and a matching image. Secondly, the confidence map of matching image and target image is generated by using structural similarity algorithm, and the region with low confidence is mapped locally to generate the initial color correction result image. Finally, the gradient preservation algorithm is used to optimize the color and structure of the initial color correction result image, and the final result image is obtained. The invention solves the problem of the structural consistency ofthe local color correction algorithm and the problem of the regional color confusion of the global color correction calculation, and also retains the gradient information of the image and improves thefidelity of the image.

Description

technical field [0001] The invention relates to the fields of image and video processing and computer vision, in particular to a method for color correction of stereoscopic images with consistent structure based on gradient preservation. Background technique [0002] Color correction is also known as color migration, color mapping, color repair or image style conversion, its purpose is to eliminate the color difference between two similar image pairs, or transfer the style of the reference image to the target image, so that the target image appears The style of the reference image. At present, there are many kinds of color correction algorithms, which can be divided into global color correction and local color correction from the perspective of correction area. The global color correction algorithm is currently the most common color correction algorithm. Its implementation method is simple and efficient, and it does not need to consider the image structure problems caused b...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T7/33G06T7/90
CPCG06T7/33G06T7/90G06T5/90
Inventor 牛玉贞刘朋宇柯逍陈俊豪
Owner FUZHOU UNIV
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