Based on the reseach of the physical mechanism of aerial color infrared photography

this paper reveals the linear relation between the exponential transform of spectral density of the image and the ratio of spectral reflectance of the ground object. A practical statistical method and corresponding experiment to reverse the ground object spectra by aerial color infrared film were given. It is shown that at least 6-band ground object spectra can be reversed by the aerial color infrared film HCJ-2 made In China. Moreover

because this statistical method has usefull

thoroughgoing and highly effective characteristics

it makes the possible to reverse all the image of aerial films by computer.