Single-sortie unmanned aerial vehicle multispectral image correction method, system and device and medium

The invention discloses a single-sortie unmanned aerial vehicle multispectral image correction method, system and device and a medium, and relates to the technical field of unmanned aerial vehicle multispectral correction, and the method comprises the steps: estimating the initial noise level of each wave band image in a single-sortie unmanned aerial vehicle multispectral image; based on the low rank of an image space, according to a small sample statistics theory method and the initial noise level of each wave band image, an iteration mode is adopted to carry out noise reduction processing on the single-sortie unmanned aerial vehicle multispectral image, and a single-sortie unmanned aerial vehicle multispectral image after noise reduction is obtained; and based on the solar radiation degree, a bilinear interpolation method is adopted to correct the denoised single-sortie unmanned aerial vehicle multispectral image, and the corrected and denoised single-sortie unmanned aerial vehicle multispectral image is ob