| 摘要 |
<p>In an image processing apparatus including an image reading section, an image processing section to distinguish an area where a document exists from an area where the document does not exist according to an output of the image reading section on the basis of an area recognition threshold value, and a document erasure device to erase an output image for an area on a recording material corresponding to the area where the document does not exist, a selector automatically selects either a rectangle erasure function in which an area inside a minimum quadrilateral including the document is made a document area or an oblique angle erasure function in which the document area is formed by both edges of each primary scanning line of the document read by the image reading section, on the basis of a rectangle erasing threshold value and a document background level value. <IMAGE></p> |
