Image processing method, image processing apparatus, and image processing program

An image processing apparatus for divisional arrangement of a plurality of document image pieces, obtained by dividing a long document image, into a number of pages P smaller than number of the document image pieces, the image processing apparatus comprising:

• a document image acquirer that acquires the long document image;
• an image processor that generates an image obtained by divisionally arranging the long document image acquired;
• and
• an image outputter that outputs the image, wherein
• the image processor includes
• a rearrangement output size calculator that obtains, for one output size or more, a size of a rearranged sheet in which N × P sheet pieces each having a length of one side obtained by equally dividing any one of vertical and horizontal sides of the output size by a number of divisions N, and having a length of another side that is equal to a length of another one of the sides of the output size, in a direction along the other side,
• an actual size document divider that determines whether the long document image of an actual size fits within the size of the rearranged sheet, and determines, when the long document image fits within the size, a divisional arrangement including a plurality of actual size document image pieces obtained by dividing the long document image at a position corresponding to each sheet piece as an outputtable arrangement,
• a zoom document divider that determines whether the long document image fits within the rearranged sheet when the long document image is zoomed to match the size of any of the short side and the long side of the rearranged sheet, and when the long document image fits within the size, determines, as an outputtable arrangement, a divisional arrangement including a plurality of zoomed document image pieces obtained by dividing the zoomed long document image at a position corresponding to each sheet piece, and
• a divisional arrangement determiner that obtains, as an outputtable image, an image of the P pages in which a maximum of N document image pieces according to the divisional arrangement determined to be outputtable are arranged per page in an arrangement order of the original long document image,
• the image outputter outputs any of the outputtable images, and
• N and P are both natural numbers.

An image processing program for divisional arrangement of a plurality of document image pieces, obtained by dividing a long document image, into a number of pages P smaller than number of the document image pieces, the image processing program causing a processor to execute processing comprising:

• obtaining, for one output size or more, a size of a rearranged sheet in which N × P sheet pieces each having a length of one side obtained by equally dividing any one of vertical and horizontal sides of the output size by a number of divisions N, and having a length of another side that is equal to a length of another one of the sides of the output size, in a direction along the other side;
• determining whether the long document image of an actual size fits within the size of the rearranged sheet, and when the long document image fits within the size, determining, as an outputtable arrangement, a divisional arrangement including a plurality of actual size document image pieces obtained by dividing the long document image at a position corresponding to each sheet piece;
• determining whether the long document image fits within the size of the rearranged sheet when the long document image is zoomed to match the size of any of the short side and the long side of the rearranged sheet, and when the long document image fits within the size, determining, as an outputtable arrangement, a divisional arrangement including a plurality of zoomed document image pieces obtained by dividing the zoomed long document image at a position corresponding to each sheet piece;
• and
• obtaining, as an outputtable image, an image of the P pages in which a maximum of N document image pieces according to the divisional arrangement determined to be outputtable are arranged per page in an arrangement order of the original long document image, wherein
• N and P are both natural numbers.