Kazumasa Koike

Image processor which converts image with poor resolution into image with improved resolution

Image processing unit processing pixel data according to scan line density

Image processing apparatus for converting a multilevel image signal into a bi-level image signal

Image processing method and device using such method

Image processing system and method

Picture processing apparatus

Image forming apparatus and wireless communication device

Image processing apparatus providing a bilevel image signal by changing binarization threshold value based on densities of original image areas incuding target pixel and less than all surrounding pixels

Apparatus for producing a bilevel image suitable for a printing characteristic of a printing unit

Communication apparatus and image communication method