IMAGE PROCESSING APPARATUS

摘要

A first document image is scanned from a document in a first orientation, and a second document image is scanned from the document in a second orientation different from the first orientation. A wrinkle area candidate detecting unit rotates the first document image by a rotation angle between the first and second orientations, and detects as a wrinkle area candidate an object in a predetermined density range in the rotated first document image and the second document image. A similarity degree determining unit determines a similarity degree between the wrinkle area candidate of the rotated first document image and the corresponding wrinkle area candidate of the second document image. A wrinkle area removing unit removes the wrinkle area candidate as a wrinkle area if the similarity degree falls into a predetermined range.

主权项

1. An image processing apparatus, comprising:
an image scanning unit configured to optically scan a first document image from a document in a first orientation, and optically scan a second document image from the document in a second orientation different from the first orientation; a wrinkle area candidate detecting unit configured to rotate the first document image by a rotation angle between the first orientation and the second orientation, and detect as a wrinkle area candidate an object in a predetermined density range in the rotated first document image and the second document image; a similarity degree determining unit configured to determine a similarity degree between the wrinkle area candidate of the rotated first document image and the corresponding wrinkle area candidate of the second document image; and a wrinkle area removing unit configured (a) not to remove the wrinkle area candidate if on the basis of the similarity degree the wrinkle area candidate of the rotated first document image agrees with the wrinkle area candidate of the second document image, and (b) to remove the wrinkle area candidate as a wrinkle area in the first document image or the second document image and generate the document image in which the wrinkle area was removed if the similarity degree falls into a predetermined range.