Hiromi Okubo

Original-discrimination system for discriminating special document, and image forming apparatus, image processing apparatus and duplicator using the original-discrimination system

Image forming apparatus with security feature which prevents copying of specific types of documents

Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function

Image processing apparatus in which filtering is selected for input image characteristics

Image processing apparatus for determining copying-inhibited document

Method and apparatus for image processing for performing a color conversion

Digital image processing apparatus for processing a variety of types of input image data

Image processing based on degree of white-background likeliness

Apparatus and method for forming an image by processing input image data while suppressing banding and dropout

Digital color converting apparatus for color image processor