| 摘要 |
The present invention discloses an image processing apparatus and an image processing method for varying the gradation characteristics of the image, by inputting an image signal, detecting the histogram distribution characteristics of pixel values constituting the image represented by the inputted image signal and converting the detected histogram characteristics into arbitrary histogram characteristics. Thus the gradation characteristics of plural images obtained from a same portion of the object can be converted into desired gradation characteristics, and the gradation characteristics of an image obtained by a substrate image processing apparatus can be converted close to the gradation characteristics of the taken original images, whereby the deterioration in the efficiency of diagnosis can be prevented.
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