| 摘要 |
An image reading apparatus has a document reader for reading an image from a document and generating image data. A determining section determines whether the read document is color or monochromatic. An area separator separates a character area in the image data generated by the document reader and generates area information indicating the separated character area. A character document determining portion determines whether the document is a character document in accordance with the area information. A compressing portion compresses the image data generated by the document reader into a first compression format if the document is determined to be a monochromatic character document, or into a second compression format if the document is determined to be a monochromatic document that is not a character document. A storage section stores the image data compressed by the compressing portion.
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