Brother Kogyo Kabushiki-kaisha

Hiroaki Fujii

Tetsuya Kato

Noriko Misumi

An image recording apparatus including: a storing portion configured to store first image data based on which recording is performed on one of recording surfaces of a recording medium and second image data based on which the recording is performed on the other surface; a first density adjusting section configured to make an adjustment to a recording density for at least part of the first image data on the basis of an input of a user; a second density adjusting section configured to make an adjustment to a recording density for at least part of the second image data, the adjustment being reverse to the adjustment by the first density adjusting section; and a recording section configured to perform the recording on the basis of the first image data adjusted by the first density adjusting section and the second image data adjusted by the second density adjusting section.

Image recording apparatus and storage medium storing program

An image reading apparatus includes a document table that is transparent, a read unit that reads a document placed on the document table through the document table so as to generate image data representing a read image of the document, an extraction unit that converts the image data of the read result of the read unit into edge image data representing an edge image and extracts edge points satisfying a predetermined condition as edge points corresponding to a side of the document placed on the document table from the edge image data, an outer margin recognition unit that approximates the edge points corresponding to each side of the document extracted by the extraction unit to a line so as to recognize an outer margin of the document, and a likelihood evaluation unit that evaluates the likelihood of the outer margin recognized by the outer margin recognition unit.

Image reading apparatus

An image reading apparatus includes a document table, a read unit that reads a document so as to generate image data representing a read image of the document, a partial prescanning unit, which conveys the read unit in a partial area of a readable area of the document table, and which controls the read unit to execute read operation in the partial area, a corner estimation unit, which converts the image data of the read result of the read unit into edge image data representing an edge image, and which estimates position coordinates on the document table corresponding to two of four corners of the document on the assumption that the placed document is quadrangular based on the edge image data, and a document estimation unit that estimates the state of the placed document based on the estimation result of the corner estimation unit.

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Nagoya, Japan

Hiroaki Fujii