Konica Minolta Business Technologies, Inc.

Toru Maegawa

Hiroyuki Suzuki

Kazuhiro Ishiguro

Takayuki Nabeshima

Hideyuki Toriyama

Takahiro Tsutsumi

Hidekazu Takahama

Kazuyoshi Noguchi

An image processing apparatus reducing image noise caused at a device which has a stationary reading portion such as a CCD sensor and reads an image of a document by moving the document is structured as follows: the image processing apparatus determines whether full color image data read by the reading portion is out of a predetermined color space; it uses shift resisters to determine that the image data out of the predetermined color space continues in a sub scanning direction; and thus it detects a line-shaped dirt image caused by dirt or the like at the reading portion, and corrects the dirt image.

Image processing apparatus and method determining noise in image data

In order to prevent the appearance of gaps in fine lines when image data undergoes resolution conversion, the image processing apparatus includes an image reading unit that inputs image data, a fine line detection unitthat detects fine lines from the image data, a resolution conversion unitthat converts the image data to a prescribed resolution, and a fine line restoration unitthat restores fine lines in the image data that has undergone resolution conversion.

Image processing apparatus and image processing program to perform image data resolution conversion

A multibeam scanning optical apparatus incluses a controller which specifies laser diodes which are emitting light normally and arranged in a continuous row, a memory having a plurality of area in which image data are stored, a write-in controller which causes image data for each line to be written into only areas of memory corresponding to the specified laser diodes when any of the laser diodes suffers a failure, a read-out controller which causes the image data for each line to be read out simultaneously from the areas of memory corresponding to the specified laser diodes and a driver which performs light emission control only with respect to the specified laser diodes.

Multibeam scanning optical apparatus and multibeam image forming apparatus

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Hino, Japan

Toru Maegawa