| 摘要 |
PROBLEM TO BE SOLVED: To provide an image processor which corrects radiance of the respective pixels constituting an image observed by a sensor with high accuracy without utilizing topographic data.SOLUTION: An image processor is provided with an atmospheric scattering radiance calculation unit 5 which calculates a component having a dependence on observation environment of a multispectral sensor by using the minimum luminance value in an image, and an atmospheric scattering radiance ratio which is a component having a dependence on a wavelength band, and calculates atmospheric scattering radiance from the component having the dependence on the observation environment and the atmospheric scattering radiance ratio. The image processor corrects radiance values of the respective pixels constituting the image observed by the multispectral sensor by using the atmospheric scattering radiance calculated by the atmospheric scattering radiance calculation unit 5 and known atmospheric transmittance. |
