| 摘要 |
An image reading apparatus includes: a reading device; and a control unit, wherein the control unit configured to perform: an image reading process of controlling the reading device; a line ground-color-density detection process of detecting a ground-color-density of respective lines; a line count process of counting the number of adjacent lines, which is the number of lines that are adjacent to each other and a difference of the ground-color-densities of the lines falls within a reference range; a document ground-color-density extraction process of extracting a ground-color-density of a line in an area having the largest number of adjacent lines from a read image of the document image; and a density determination process of determining whether the ground-color-density of the document image is a reference density or lower, and a ground color correction process of performing.
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