Remote sensing image automatic color uniformizing method based on global color feature library

Abstract

The invention discloses a remote sensing image automatic color uniformizing method based on a global color feature library. The method comprises the following steps: S1, constructing a multi-scale space color library: respectively counting mean values and variances of multi-source remote sensing images with real ground object colors and good radiation quality on different block scales, and establishing a multi-scale space color feature library covering a global range in combination with ground object textures and spectral features; and S2, locally updating the space color library according tospecific color uniformizing requirements; and S3, carrying out automatic color uniformizing processing on the remote sensing image based on a space color library and a wallis filter. The invention hasthe beneficial effects that the invention provides an automatic color uniformizing technology based on a multi-scale space color library, the workload of manufacturing a color uniformizing template in large-scale remote sensing image production is effectively avoided, and the color uniformizing requirements of the interior of a single image, the multiple images and large-range mosaic images are met at the same time; multi-scale statistical information is beneficial to meeting color consistency processing of images with different data sources and different resolutions.

Description

technical field [0001] The present invention relates to the technical field of digital orthophoto image making and uniform coloring, in particular to a method for automatic color uniformity of remote sensing images based on a global color feature library. Background technique [0002] Due to the sensor characteristics of optical remote sensing images, as well as the influence of various factors such as image acquisition time and shooting environment, there will be different degrees of color differences in remote sensing images. , Image interpretation, image interpretation and other engineering applications have caused different degrees of impact. In order to eliminate the color difference of the image, it is necessary to perform color consistency processing on the image. According to production requirements, the uniform light and color processing of remote sensing images is divided into three types Scenario: one is to process the color consistency inside a single image, the ...

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Problems solved by technology

[0008] Aiming at the above-mentioned technical problems in related technologies, the present invention proposes a method for automatic color uniformity of remote sensing images based on the global color feature library, which can solve the technical deficiencies existing in the existing technology of uniform light and color uniformity in the production of large-scale remote sensing images

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