Image processing apparatuses and non-transitory computer readable medium

Patent metadata

Field	Value
Publication number	US-10643097-B2
Application number	US-201715689365-A
Country	US
Kind code	B2
Filing date	Aug 29, 2017
Priority date	Feb 8, 2017
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

An image processing apparatus includes a generation unit that generates, in a case where a small-sheet image in a first image is unsuccessfully extracted and results in multiple small-sheet images, a second image including the small-sheet images that are combined.

First claim

What is claimed is:

1. An image processing apparatus comprising:
a processor programmed to:
set a circumscribed area that includes a small-sheet image in a first image;
detect an edge pixel of the small-sheet image;
determine an effective edge of the small-sheet image based on a spatial relationship between (i) the circumscribed area set by the processor and (ii) the detected edge pixel of the small-sheet image, the spatial relationship including at least one of:
(i) a distance between the detected edge pixel and a side of the circumscribed area; and
(ii) a positional difference between the detected edge pixel and an adjacent edge pixel;

determine that the small-sheet image in the first image is unsuccessfully extracted based on the determined effective edge; and
in response to determining that the small-sheet image in the first image is unsuccessfully extracted, generate a second image by combining the small-sheet image with another small-sheet image that is also determined to be unsuccessfully extracted.

2. The image processing apparatus according to claim 1 , wherein the processor is programmed to:
combine the small-sheet image with the other small-sheet image, if a distance between the small-sheet images is shorter than or not longer than a threshold.

3. The image processing apparatus according to claim 2 ,
wherein the threshold is one of a predetermined value, a value set in accordance with a small sheet type, and a value set in accordance with a size of a successfully extracted small-sheet image.

4. The image processing apparatus according to claim 1 ,
wherein in a case where the circumscribed area, which is a circumscribed rectangle, in the first image does not indicate a small-sheet image, the case is regarded as the case where the small-sheet image in the first image is unsuccessfully extracted.

5. The image processing apparatus according to claim 4 , wherein the processor is programmed to:
perform a determination of whether the circumscribed rectangle indicates a small-sheet image in accordance with a size of the circumscribed rectangle or a number of detected sides of the small-sheet image in the circumscribed rectangle; and
use a result of the determination to generate the second image.

6. The image processing apparatus according to claim 5 , wherein the processor is programmed to:
when the size of the circumscribed rectangle is within a predetermined range, or when the number of detected sides of the small-sheet image in the circumscribed rectangle is larger than or not smaller than a predetermined number, determine that the circumscribed rectangle indicates the small-sheet image.

7. A non-transitory computer readable medium storing a computer to execute a process for image processing, the process comprising:
setting a circumscribed area that includes a small-sheet image in a first image;
detecting an edge pixel of the small-sheet image;
determining an effective edge of the small-sheet image based on a spatial relationship between (i) the circumscribed area set by the processor and (ii) the detected edge pixel of the small-sheet image, the spatial relationship including at least one of:
(i) a distance between the detected edge pixel and a side of the circumscribed area; and
(ii) a positional difference between the detected edge pixel and an adjacent edge pixel;

determining that the small-sheet image in the first image is unsuccessfully extracted based on the determined effective edge; and
in response to determining that the small-sheet image in the first image is unsuccessfully extracted, generating a second image by combining the small-sheet image with another small-sheet image that is also determined to be unsuccessfully extracted.

Assignees

• Fuji Xerox Co Ltd

Inventors

• Kobayashi Kunihiko
• Oya Kazuhiro
• Okada Shigeru
• Adachi Shintaro
• Kishimoto Hiroyuki
• Abe Akane

Classifications

• H04N1/3873

  defined only by a limited number of coordinate points or parameters, e.g. corners, centre; for trimming · CPC title

• H04N1/3876

  Recombination of partial images to recreate the original image · CPC title

• H04N1/393

  Enlarging or reducing · CPC title

• H04N1/3875 Primary

  combined with enlarging or reducing (enlarging or reducing per se H04N1/393) · CPC title

• G06K9/3275

  Physics · mapped topic