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Image reading apparatus and image forming apparatus

  • US 10,148,848 B2
  • Filed: 05/26/2017
  • Issued: 12/04/2018
  • Est. Priority Date: 06/10/2016
  • Status: Active Grant
First Claim
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1. An image reading apparatus comprising:

  • a document setting table;

    an image reading unit that reads a plurality of source documents placed on the document setting table and generates a first image file representing the plurality of source documents;

    an image memory that stores the first image file; and

    a control unit that includes a processor and acts, when the processor executes a control program, as;

    a downsized image file generation unit that generates downsized image file by reducing a size of the of first image file;

    a document information generation unit that analyzes the downsized image file to detect respective positions of the plurality of source documents and inclination of each of the plurality of source documents, and generate document information indicating the detected positions and the detected inclination;

    an image cropping unit that crops a plurality of regions from the first image file according to the positions indicated by the document information, and acquires a plurality of items of cropped image data respectively representing the plurality of source documents;

    an inclination correction unit that rotates the cropped image data according to the inclination indicated by the document information, to thereby correct the inclination of each of the plurality of items of cropped image data to a horizontal orientation; and

    an image data synthesizing unit that synthesizes the plurality of items of cropped image data, the inclination of which has been corrected to the horizontal orientation by the inclination correction unit, and generates a second image file representing the plurality of source documents, the inclination of which has been corrected to the horizontal orientation.

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