Optical remote sensing image fast view generation method and device

The invention discloses an optical remote sensing image fast view generation method and device, and the optical remote sensing image fast view generation method comprises the steps: carrying out the downsampling of a to-be-processed optical remote sensing image, obtaining a sampled pixel, and determining the feature information of the sampled pixel; performing linear stretching on the feature information to obtain enhanced first feature information; calculating characteristic parameters of the pixels in each waveband according to the first characteristic information, and judging whether the characteristic parameters are smaller than a preset first threshold value or not; and if the first feature information is smaller than the second feature information, performing gamma stretching on thefirst feature information to obtain enhanced second feature information, and generating a fast view according to the second feature information. The optical remote sensing image fast view generation method and device solve th