Method of and apparatus for processing a radiation image.

摘要

A method of and apparatus for processing a radiation image in a radiation image recording system in which a stimulable phosphor is stimulated with a scanning stimulating ray and the light emitted from the stimulable phosphor upon stimulation by the stimulating ray is detected by a detector which gives an output to be processed and used for recording a visible image on a recording material. In the processing of the detected output, an operation represented by a formulais conducted at every scanning point, wnere sorg is the ongi- nal image signal detected by the detector, Sus is an unsharp mask signal corresponding to a super-low spatial frequency, X is Sorg-Sus, and F(X) is a monotone increasing function which satisfies the condition of F'(X1)≥F'(X2)≥O for arbitrary values X1, X2 of X (|X <| X2| and in which there exists at least one certain value X0 of X which satisfies the condition of F'IX1)>F'I(X2) when |X1l <|X0| <|X2|.