| 摘要 |
PROBLEM TO BE SOLVED: To provide image information, excluding useless black framing included in read and obtained image information through recognition of an out-of- original area in the image information obtained by reading effective read area and converting pixels belonging to the recognized out-of-original area in the image information into white pixels. SOLUTION: An image processing part 3 quantizes the image signals of a main scanning line unit from an image sensor 2 by an A/D conversion part and converts them to multi-level image information. The multi-level image information is inputted to a multi-level image processing part, the processings of gamma correction, a halftone processing and an MTF correction processing, etc., are performed there, and they are binarized and outputted by a binarization processing part. This image reader 1 is provided with an out-of-original area recognition means for recognizing the out-of-original area in the image information obtained by reading the effective read area, and an out-of-original area correction means for converting the pixels belonging to the out-of-original area in the image information recognized by the out-of-original area recognition means to the white pixels. |
