Local linear preserver-based scene color style uniformizing method

Abstract

The invention provides a local linear linear preserver-based scene color style uniformizing method. The method comprises the following steps of: inputting an original color image and a reference color image, and converting both from a RGB (red, green, blue) color space to a Lab color space; classifying the colors of the original color image and the reference color image by using eleven primary colors, calculating a color mean value of each color class in a corresponding images, and acquiring dominant tones of the original image and the reference image; establishing a color mapping relation between the dominant tones of the original image and the reference image according to a color mapping mechanism; calculating a local linear relation of each pixel color of the original image, and calculating a color value of each pixel in a result image by combining the color mapping relation of the dominant tones in the premise of preserving the local linear relation; and converting the color spaceof the result image from Lab to RGB, and outputting a final result. According to the method, the colors of the dominant tone of the reference image are transferred to the original image, and the problem of unsmooth color transition caused by the color classification is solved by considering the local linear relation of the image spaces.

Description

technical field [0001] The invention relates to the fields of image processing, computer vision and augmented reality, in particular to a scene color style consistent processing method based on local linearity preservation. Background technique [0002] In the field of digital images, one of the most common image processing methods is to change the visual effect of images. From the perspective of human vision, color is a basic visual feature for humans to perceive and distinguish different objects. Every object in the world has its inherent color characteristics, similar objects usually have the same or similar color characteristics, and different objects may show different characteristics. Compared with other features, color has a certain stability, it is not sensitive to the translation, scale, and rotation changes of the image, and the calculation is simple. Color conversion refers to transferring the color style of a given reference image to another original image, and...

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned methods cannot guarantee that the resulting image can not only visually approach the color of the reference image, but also maintain the color manifold linear structure of the original image.

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