Fisheye camera shadow correction parameter determination method, correction method and device, storage medium, and fisheye camera

Abstract

The invention discloses a fisheye camera shadow correction parameter determination method, a fisheye camera shadow correction method, a fisheye camera shadow correction parameter determination device,a fisheye camera shadow correction device, a storage medium and a fisheye camera. The fisheye camera shadow correction parameter determination method comprises the steps of: acquiring an original image of the fisheye camera, wherein the original image is shot when the fisheye camera is not provided with an outer shell; counting luminance information and chrominance information of the original image in each block; and calculating correction parameters of the fisheye camera according to the luminance information and chrominance information of each block. By adopting the methods and the devicesdisclosed by the invention, the correction effect of the fisheye camera in shadow correction can be improved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method for determining shadow correction parameters of a fisheye camera, a correction method and device, a storage medium, and a fisheye camera. Background technique [0002] With the advancement of technology, cameras have been improved accordingly, but still face some problems. Especially when light passes through the lens of a camera, the refraction of light causes the light to bend. The bending of light results in uneven brightness across the sensor, making the center much brighter than the edges. This distortion is called lensshading or vignetting. Variations or imperfections in the lens can increase the non-uniformity to the light passing through the lens. Additionally, light may be blocked or not pass through as a result of the interaction of the lens case. Therefore, due to imperfections in the lens and image-forming medium (film or digital sensor s...

AI Technical Summary

Problems solved by technology

[0004] However, in the existing technology, when performing shading correction on the image acquired by the whole machine, there are parts that are too bright or have abnormal colors on the circular border, resulting in poor correction effect and affecting the imaging effect when users use it.

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