IMAGE READING DEVICE, DOCUMENT AREA DISCRIMINATION METHOD IN IMAGE READING DEVICE AND PROGRAM

Abstract: the image reading device includes a reading section configured to read an image of a document and a background forming section that causes the reading section to read a background including a pattern with a specific cycle. a control section sets three or more continuous m-number of pixels in a direction with a cycle of the pattern in image data, determines the presence or absence of a short cycle fluctuation, which is a cyclical fluctuation of the brightness value specific to the pattern, for each of the single unit based on the brightness values of the m-number of pixels for each of the single unit, and discriminates between the document area and the background area based on the position at which the presence or absence of the short cycle fluctuation obtained from the image data switches.

Inventor(s): Hikari ISHIHARA

CPC Classification: H04N1/04 (Scanning arrangements {, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa} ( takes precedence))

Search for rejections for patent application number 20250175568