Patent ID: 7483066

Claim:
An image processing method for obtaining image information, as an image signal for each pixel, from a solid-state detector, in which the image information is recorded as an electrostatic latent image, the method comprising the steps of: obtaining the image information from the solid-state detector as an analog image signal; performing A/D conversion to convert the obtained analog image signal into a digital image signal; removing a conversion error, included in the digital image signal, by using a correction table, which stores correction conditions for removing the conversion error generated in the digital image signal when the A/D conversion is performed; and generating a logarithmic image signal by performing logarithmic transformation on the digital image signal, from which the conversion error has been removed, wherein the correction table stores the correction conditions only for the digital image signal, of which resolution attained by performing the logarithmic transformation on the digital image signal at the logarithmic transformation unit is higher than its resolution attained by performing the logarithmic transformation on the analog image signal using a logarithmic amplifier and performing A/D conversion on the analog image signal after the logarithmic transformation.