Simple image color normalization method

A normalization and image technology, applied in the field of image recognition, can solve the problems of insufficient intelligence and inability to match the convenience of the mobile Internet, and achieve the effect of accurate normalization and convenient data collection

Pending Publication Date: 2019-07-12
柳州康云互联科技有限公司
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Problems solved by technology

[0003] This method is obviously not smart enough and

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the examples. It should be noted that the following examples are only illustrative, and are not intended to limit the present invention.

[0015] The purpose of the present invention is achieved through the following technical solutions, specifically comprising the following steps:

[0016] S1. Choose one picture as the benchmark picture, and other pictures as comparison pictures, and use the benchmark picture as the target to carry out color normalization;

[0017] S2. Perform sift feature point matching on the comparison pictures that need to be normalized, and find all rough matching feature points

[0018] S3. For all the rough matching feature points, take a feature point, and find the first two feature points with the closest Euclidean distance to the reference picture image, among these two key feature points, if the nearest distance is divided by the second If the ratio ratio obtained by ...

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Abstract

A simple image color normalization method comprises the following steps: selecting a reference picture and other pictures as comparison pictures to carry out color normalization; carrying out sift feature point matching on a comparison picture needing normalization and the reference picture, and finding out all coarse matching feature points; for all the rough matching feature points, taking one feature point, finding out the first two feature points closest to the Euclidean distance in the reference picture image, and in the two key feature points, if the ratio of the nearest distance dividedby the next close distance is smaller than a certain threshold value, accepting the pair of matching points; sorting all the coarse matching feature points to obtain R, G and B values of all the matching points on the two pictures, and setting the R, G and B values as A (r, g, b) and B (r, g, b); and calculating a correction parameter and correcting the picture needing to be normalized by using the correction parameter. According to the method, picture colors can be normalized quickly and accurately, and data acquisition of pictures is facilitated.

Description

technical field [0001] The invention relates to the field of image recognition, in particular to a simple method for image color normalization. Background technique [0002] In many application scenarios, it is necessary to collect multiple images of the same scene. Due to the influence of factors such as the light environment during collection, the color of the same object is different in different pictures. At this time, it is often necessary to normalize the image color to To ensure the consistency of the collected images, the existing methods usually place a color guide or a color guide in the scene, and then perform image collection. [0003] This method is obviously not smart enough and cannot match the convenience of the mobile Internet. Contents of the invention [0004] In order to solve the problems existing in the prior art, the present invention thus provides a simple method for image color normalization, comprising the following steps: choose a picture as a r...

Claims

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Application Information

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IPC IPC(8): G06T3/00G06T7/00G06T7/33G06T7/90
CPCG06T3/0012G06T7/33G06T7/90G06T7/97G06T2207/10004
Inventor 吴凡郭骁
Owner 柳州康云互联科技有限公司
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