An image color restoration method and device based on a sea-sky background

Abstract

The invention relates to an image color restoration method and device based on a sea-sky background, and the method comprises the steps: 1, carrying out the defogging processing of a distorted targetimage, and obtaining an enhanced image; Wherein the distorted target image comprises a sea surface background and a sky background; 2, extracting a sea antenna in the enhanced image to obtain a sea surface background and a sky background which are distinguished; and step 3, respectively migrating the colors of the sea surface background and the sky background in the clear reference image to the distinguished sea surface background and sky background, and obtaining a restored image through fusion. The method is simple in calculation and suitable for hardware implementation, the degraded color of long-distance imaging can be well recovered, and the reconnaissance efficiency of the reconnaissance ship is improved.

Description

technical field [0001] The invention belongs to the technical field of photoelectric reconnaissance, and in particular relates to an image color restoration method and device based on sea and sky background. Background technique [0002] Based on the advantages of image comprehension and rich information, photoelectric equipment has become one of the main reconnaissance equipment of our army's reconnaissance ships. However, due to the requirements of safety in sea travel and international political and military affairs, it is difficult for reconnaissance ships to reconnaissance targets at close range. In the case of long-distance reconnaissance (≥10km), the climate in the optical path is changeable, there is more water vapor, and the humidity is higher. The photoelectric imaging process is affected by the climate, causing optical diffraction and scattering, which reduces the quality of the image, manifested as increased noise. The contrast of the target decreases, the dispe...

AI Technical Summary

Problems solved by technology

However, due to the safety of sea travel and the requirements of international political and military affairs, it is difficult for reconnaissance ships to conduct reconnaissance on targets at close range.

In the case of long-distance reconnaissance (≥10km), the climate in the optical path is changeable, there is more water vapor, and the humidity is higher. The photoelectric imaging process is affected by the climate, causing optical diffraction and scattering, which reduces the quality of the image, manifested as increased noise. The contrast of the target decreases, the dispersion of the whole image is low, and the visual effect is poor

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