Image processing apparatus, image processing method, and recording medium

Patent metadata

Field	Value
Publication number	US-10148850-B2
Application number	US-201715465057-A
Country	US
Kind code	B2
Filing date	Mar 21, 2017
Priority date	Mar 29, 2016
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

An image processing apparatus includes: an embed-data generating unit configured to generate embed-data, which is to be embedded in input-image-data, the input-image-data representing an image including a first color, the embed-data representing an image including a second color; an inverting unit configured to invert the image represented by the embed-data, in response to meeting a predetermined condition relating to the first color and the second color; and an output-image-data generating unit configured to embed, in the input-image-data, embed-data representing the image that is inverted by the inverting unit, in order to generate output-image-data in a case where the predetermined condition is met, and configured to embed, in the input-image-data, embed-data representing the image that is not inverted by the inverting unit, in order to generate output-image-data in a case where the predetermined condition is not met.

First claim

What is claimed is:

1. An image processing apparatus comprising:
an embed-data generating unit configured to generate embed-data, which is to be embedded in input-image-data, the input-image-data representing a first image including a first color, the embed-data representing a second image including a second color;
an inverting unit configured to invert the second image represented by the embed-data in response to a determination that a predetermined condition relating to the first color and the second color is met; and
an output-image-data generating unit configured to generate output-image-data as a third image, the output-image-data including the input-image-data representing the first image with the embed-data embedded in input-image-data, wherein
(i) in response to the determination that the predetermined condition is met, the embed-data in the third image represents the second image that is inverted by the inverting unit and (ii) in response to the determination that the predetermined condition is not met, the embed-data in the third image represents the second image that is not inverted by the inverting unit, and
wherein the embed-data is embedded in the input-image-data to form a circle with a mark embedded in a center point of the circle, the mark indicating whether the second color has been inverted.

2. The image processing apparatus according to claim 1 ,
wherein the first color is either one of black or white and the second color is another one of black or white, and
wherein the inverting unit determines whether to invert the second image represented by the embed-data, based on a first value and a second value, the first value indicating the number of data representing the first color, the second value indicating the number of data representing the second color.

3. The image processing apparatus according to claim 2 , wherein the the predetermined condition specifies that the first value is equal to or greater than a half of the second value.

4. The image processing apparatus according to claim 1 , further comprising a dividing unit configured to divide the first image represented by the input-image-data into a plurality of divided regions,
wherein the second image represented by the embed-data is embedded in each of the plurality of divided regions,
wherein the inverting unit determines, with respect to each of the plurality of divided regions, whether to invert the second image represented by the corresponding embed-data.

5. A method for processing an image, the method being executed by an image processing apparatus, the method comprising:
generating embed-data, which is to be embedded in input-image-data, the input-image-data representing a first image including a first color, the embed-data representing a second image including a second color;
inverting the second image represented by the embed-data in response to a determination that a predetermined condition relating to the first color and the second color is met; and
generating output-image-data as a third image, the output-image-data including the input-image-data representing the first image with the embed-data embedded in input-image-data, wherein
(i) in response to the determination that the predetermined condition is met, the embed-data represents the second image that is inverted, and (ii) in response to the determination that the predetermined condition is not met, the embed-data represents the second image that is not inverted, and
wherein the embed-data is embedded in the input-image-data to form a circle with a mark embedded in a center point of the circle, the mark indicating whether the second color has been inverted.

6. A non-transitory recording medium storing a program for causing a computer to execute an image processing method, the method comprising:
generating embed-data, which is to be embedded in input-image-data, the input-image-data representing a first image including a first color, the embed-data representing a second image including a second color;
inverting the second image represented by the embed-data in response to a determination that a predetermined condition relating to the first color and the second color is met; and
generating output-image-data as a third image, the output-image-data including the input-image-data representing the first image with the embed-data embedded in input-image-data, wherein
(i) in response to the determination that the predetermined condition is met, the embed-data in the third image represents the second image that is inverted, and (ii) in response to the determination that the predetermined condition is not met, the embed-data in the third image represents the second image that is not inverted, and
wherein the embed-data is embedded in the input-image-data to form a circle with a mark embedded in a center point of the circle, the mark indicating whether the second color has been inverted.

Assignees

• Kubo Shuko
• Shindoh Hidenori
• Ricoh Co Ltd

Inventors

• Kubo Shuko
• Shindoh Hidenori

Classifications

• H04N1/32149

  Methods relating to embedding, encoding, decoding, detection or retrieval operations · CPC title

• H04N1/32144 Primary

  embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp · CPC title

• G06T2201/005

  Image watermarking · CPC title

• G06T2201/0061

  Embedding of the watermark in each block of the image, e.g. segmented watermarking · CPC title

• H04N1/32229

  with selective or adaptive application of the additional information, e.g. in selected regions of the image (H04N1/32213 takes precedence) · CPC title