PROBLEM TO BE SOLVED: To provide a medical image processor that generates an image that enables distinction of a case of non-infection with a Helicobacter pylori, a case of infection with the Helicobacter pylori, and a case of success in elimination of the Helicobacter pylori, and an operation method of the device.SOLUTION: RGB image signals are inputted. A B/G ratio is obtained from a B image signal and a G image signal and a G/R ratio is obtained from the G image signal and an R image signal. In a feature space formed with the B/G ratio and the G/R ratio, angle unmagnification processing is performed on an angle in a certain range R1x that includes a first reference line L1 passing a second range (C), among observation objects consisting of a first range (B), the second range (C), and a third range (A), and angle enlargement or constriction processing is performed on an angle in a range R1y, which is out of a range of the range R1x. Radius vector unmagnification processing is performed on a radius vector in a certain range R2x that includes a second reference line L2 passing the second range and crossing the first reference line L1, and radius vector enlargement or constriction processing is performed on a radius vector in a range R2y, which is out of a range of the range R2x.SELECTED DRAWING: Figure 12COPYRIGHT: (C)2016,JPO&INPIT【課題】ピロリ菌に未感染の場合と、ピロリ菌に感染している場合と、ピロリ菌の除菌が成功した場合と、それぞれを見分けることができる画像を生成する医用画像処理装置及びその作動方法を提供する。【解決手段】RGB画像信号を入力する。B画像信号とG画像信号からB/G比を求め、G画像信号とR画像信号からG/R比を求める。B/G比、G/R比から形成される特徴空間において、観察対象である第1範囲(B)、第2範囲(C)、及び第3範囲(A)のうち第2範囲(C)を通る第1基準線L1を含む一定の範囲R1x内の角度に対して角度等倍処理を行い、範囲R1xの範囲外となる範囲R1yの角度に対して角度拡張又は収縮処理を行う。第2範囲を通り、且つ第1基準線L1と交差する第2基準線L2を含む一定の範囲R2x内の動径に対して動径等倍処理を行い、範囲R2xの範囲外となる範囲R2yの動径に対して動径拡張又は収縮処理を行う。【選択図】図12
