Image reading apparatus
AssigneeKYOCERA Document Solutions Inc.
InventorKunihiko Tanaka
Life of this patent
Estimating the term…
Abstract
This image reading apparatus includes an image reading unit, an average-density calculation unit, a statistical processing unit, and a blank-page determination unit. The image reading unit reads an original image and outputs image data of the original image. The average-density calculation unit calculates an average density value of block image data for a plurality of block images, which are obtained by dividing the original image, based on the image data output from the image reading unit. The statistical processing unit determines a characteristic value of the average density value distribution associated with the block images. The blank-page determination unit determines whether or not the original image is a blank image based on the characteristic value determined by the statistical processing unit.
Claims5
An image reading apparatus comprising:
- an image reading unit that reads an original image and outputs image data of the original image;
- an average-density calculation unit that calculates an average density value of block image data for a plurality of block images based on the image data output by the image reading unit, the block images being obtained by dividing the original image;
- a statistical processing unit that determines a characteristic value of distributions of the average density values associated with the block images;
- and
- a blank-page determination unit that determines whether or not the original image is a blank image based on the characteristic value determined by the statistical processing unit.
Dependencies are inferred from the claim text.