Image processing method, image processing apparatus, and computer-readable storage medium for computer program for generating an integrated duplicate by printing images of a plurality of documents on a single sheet of recording paper or a plurality of continuously-fed sheets of recording paper

An image processing method for generating an integrated duplicate by printing images of a plurality of documents on a single sheet of recording paper or a plurality of continuously-fed sheets of recording paper, the method comprising:

• a first step of reading each of the plurality of documents and obtaining image data corresponding to said each of the plurality of documents;
• a second step of detecting, from the image data, identification codes that are included in the documents and include output processing information which is information relating to an output processing method for the image data;
• a third step of extracting an image data group made up of one or more pieces of image data including the output processing information that is identical with one another, the output processing information being included in the identification codes;
• and
• a fourth step of determining, within the image data group, at least one piece of representative image data, and deleting, within the image data group, the identification codes included in the image data other than said at least one piece of representative image data.

An image processing apparatus for producing an integrated duplicate by printing images of a plurality of documents on a single sheet of recording paper or a plurality of continuously-fed sheets of recording paper, the apparatus comprising:

• a first portion that reads each of the plurality of documents and obtains image data corresponding to said each of the plurality of documents;
• a second portion that detects, from the image data, identification codes included in the documents and including output processing information which is information relating to an output processing method for the image data;
• a third portion that extracts an image data group made up of one or more pieces of image data including the output processing information that is identical with one another, the output processing information being included in the identification codes;
• and
• a fourth portion that determines, within the image data group, at least one piece of representative image data and deletes, within the image data group, the identification codes included in the image data other than said at least one piece of representative image data.

A nontransitory computer-readable storage medium storing thereon a computer program executed by a computer provided in an image forming apparatus that produces an integrated duplicate by printing images of a plurality of documents on a single sheet of recording paper or a plurality of continuously-fed sheets of recording paper, the computer program, when read and executed by the computer, causing the image forming apparatus to implement:

• a first portion that reads each of the documents and obtains image data corresponding thereto;
• a second portion that detects identification codes included in the documents from individual pieces of the image data;
• a third portion that extracts the image data including the identification codes that are identical with one another;
• and
• a fourth portion that keeps at least one of the identification codes which are included in the image data extracted by the third portion and deletes the identification codes other than said at least one of the identification codes.

A nontransitory computer-readable storage medium storing thereon a computer program executed by a computer provided in an image forming apparatus that produces an integrated duplicate by printing images of a plurality documents on a single sheet of recording paper or a plurality of continuously-fed sheets of recording paper, the computer program, when read and executed by the computer, causing the image forming apparatus to implement:

• a first portion that reads each of the plurality of documents and obtains image data corresponding to said each of the plurality of documents;
• a second portion that detects, from the image data, identification codes that are included in the documents and include output processing information which is information relating to an output processing method for the image data;
• a third portion that extracts an image data group made up of image data including the output processing information that is identical with each another;
• and
• a fourth portion that determines, within the image data group, at least one piece of representative image data, and deletes, within the image data group, the identification codes included in the image data other than said at least one piece of representative image data.