Patent ID: 7253926
Filing Date: 2007-08-07
Classification: G06T,H04N

Abstract:
1. A multifunction apparatus, having a plurality of various functions including at least a copy function, comprising: an image-reading device to read an original image residing on a document so as to convert the original image into image data thereof; a binary image data generating section to generate binary image data by applying a binary-coding processing to the image data read from the original image; an image-data storing section to store the image data, read from the original image, or the binary image data, generated by the binary image data generating section, therein; a designating section to designate a specific function among the plurality of various functions as an outputting function; a resolution setting section to set an output-image resolution, based on an output resolution of the outputting function designated by the designating section; a resolution converting section to convert a resolution of either the image data or the binary image data, stored in the image-data storing section, to the output-image resolution set by the resolution setting section; and a reading mode selecting section to select a specific reading mode, which corresponds to a feature of the original image, from a plurality of various reading modes provided in advance; wherein, based on a ratio of the resolution of either the image data or the binary image data, stored in the image-data storing section, and the output-image resolution set by the resolution setting section, the resolution converting section divides either the image data or the binary-coded image data into a plurality of pixel blocks, and then, converts the resolution of either the image data or the binary image data to the output-image resolution in such a manner that either the image data or the binary image data is binary-coded by comparing a value based on a rate of black pixels residing in each of the plurality of pixel blocks, with a reference value, and at the same time, changes the reference value corresponding to the specific reading mode.