Image processing apparatus
AssigneeMinolta Co., Ltd.
InventorsAKINORI YOSHIDA, HIROAKI IKEDA, MOTOMI TAKEMOTO, TOMOKAZU KATO
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Abstract
An image processing apparatus discriminates whether an original document is a color original document or a monochrome original document based on image data and performs image processing in an operational mode based on the result thereof. The image processing apparatus discriminates whether an image background area is color, and if a background area is determined to be color, the image processing apparatus provides image processing to the original document as a monochrome original document, in an operational mode used for a monochrome original document.
Claims9
An image processing apparatus comprising:
- receiving means for receiving image data;
- color discriminating means for discriminating whether the received image data are based on a color image or a monochrome image;
- background discriminating means for discriminating whether the received image data are based on a color image whose background area is color;
- and
- processing means for processing the received image data as a monochrome image when the background area is distinguished as color by said background discriminating means.
An image processing apparatus comprising:
- receiving means for receiving image data;
- color discriminating means for discriminating whether the received image data are based on a color image or a monochrome image;
- background discriminating means for discriminating whether the received image data are based on a color image whose background area is color;
- and
- processing means for processing the received image data as a monochrome image and for outputting image data making the background area white when the background area is distinguished as color by said background discriminating means.
An image processing method comprising the steps of:
- receiving image data of an original document;
- discriminating whether the original document is a color document or a monochrome document based on the image data;
- extracting a background area from the original document;
- discriminating whether the background area is color or monochrome;
- and
- processing the received image data as a monochrome image data when the background area is distinguished as color.
An image processing method comprising the steps of:
- receiving image data of an original document;
- discriminating whether the original document is a color document or a monochrome document based on the image data;
- detecting a first value distribution based on the received image data and a second value distribution based on color image data in the received image data;
- comparing the first value distribution with the second value distribution;
- discriminating whether the background area is color or monochrome based on the result of the comparing;
- and
- processing the received image data as a monochrome image data when the background area is distinguished as color.
Dependencies are inferred from the claim text.