Method of adjusting radiation image read-out apparatus

Details Method of adjusting radiation image read-out apparatus Method of adjusting radiation image read-out apparatus

G - Physics

01

T

358/11

G01T 1/29 (2006.01) H04N 1/40 (2006.01) H04N 1/407 (2006.01) H05G 1/26 (2006.01)

Patent

CA 1223980

METHOD OF ADJUSTING RADIATION IMAGE READ-OUT CONDITIONS ABSTRACT OF THE DISCLOSURE A method of adjusting radiation image read-out conditions used in a radiation image recording and reproducing system wherein preliminary read-out and final read-out are conducted for detecting the radiation image stored in a stimulable phosphor sheet comprises determining a histogram of the amount of light emitted by the stimulable phosphor sheet when it is exposed to stimulating rays during the preliminary read-out. From the histogram, the maximum light emission amount Smax and the minimum light emission amount Smin of a desired image information range are calculated, Read-out conditions are adjusted so that Smax and Smin correspond respectively to the maximum signal level Qmax and the minimum signal level Qmin of a desired input signal range in an image processing apparatus which are determined by the maximum density Dmax and the minimum density Dmin of a correct density range in a finally reproduced visible image.

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