Image processing apparatus, image processing method, program, and ink jet printing system

Patent metadata

Field	Value
Publication number	US-10589539-B2
Application number	US-201816234615-A
Country	US
Kind code	B2
Filing date	Dec 28, 2018
Priority date	Jul 11, 2016
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

Provided are an image processing apparatus, an image processing method, a program, and an ink jet printing system that can perform image formation capable of preventing the deterioration of image quality caused by bleeding in a case in which printing is performed on cloth. An image processing apparatus 12 acquires base material information 42 including at least information indicating the quality of fiber in cloth which is a medium to be printed and image data 40 to be printed on the cloth and generates a bleeding-prevented image 44 indicating an ink application pattern in which at least one of an ink application position or an amount of ink applied is limited in anticipation of wetting and spreading of the ink in the cloth, on the basis of the base material information 42 and the image data 40.

First claim

What is claimed is:

1. An image processing apparatus comprising:
base material information acquisition means for acquiring base material information including at least information indicating a quality of fiber in cloth which is a medium to be printed;
image acquisition means for acquiring image data to be printed on the cloth; and
bleeding prevention image processing means for generating a bleeding-prevented image indicating an ink application pattern in which at least one of an ink application position or an amount of ink applied is limited in anticipation of wetting and spreading of the ink in the cloth, on the basis of the base material information and the image data,
wherein the base material information includes weave type information indicating the type of weave and thickness information indicating a thickness of a yarn,
wherein the bleeding prevention image processing means includes:
function determination means for determining a function used to calculate a bleeding prevention direction and a bleeding prevention range in which the application of the ink is limited on the basis of the base material information; and
arithmetic processing means for applying the function determined by the function determination means to the image data to calculate a bleeding prevention position and bleeding prevention strength corresponding to the image data.

2. The image processing apparatus according to claim 1 ,
wherein the base material information includes yarn type information for specifying a quality of warp and weft as the information indicating the quality of the fiber.

3. The image processing apparatus according to claim 1 , further comprising:
operation means for receiving an operation of inputting the base material information from a user; and
display means for displaying the base material information.

4. The image processing apparatus according to claim 1 ,
wherein the bleeding prevention image processing means includes difference processing means for calculating a difference between an image for preventing bleeding which indicates the bleeding prevention position and the bleeding prevention strength calculated by the arithmetic processing means and an original image indicated by the image data.

5. The image processing apparatus according to claim 4 ,
wherein the bleeding prevention image processing means includes separation processing means for performing a separation process of decomposing the image data into separated images which are images of each color component,
the arithmetic processing means generates the image for preventing bleeding which indicates the bleeding prevention position and bleeding prevention strength corresponding to the separated images by applying the function determined by the function determination means to the separated images to convert the separated images, and
the difference processing means calculates a difference between the separated images as the original image and the image for preventing bleeding to generate the bleeding-prevented image.

6. The image processing apparatus according to claim 1 ,
wherein wetting and spreading information indicating wetting and spreading characteristics of the ink in each of a plurality of types of cloth is stored for the plurality of types of cloth in advance, and
the function determination means determines the function using the wetting and spreading information corresponding to the base material information.

7. The image processing apparatus according to claim 6 ,
wherein the wetting and spreading information includes information indicating a wetting and spreading direction and a wetting and spreading range.

8. The image processing apparatus according to claim 6 , further comprising:
function database storage means for storing, as the wetting and spreading information, data of the function corresponding to the wetting and spreading characteristics of the ink in each of a plurality of types of cloth for the plurality of types of cloth in advance,
wherein the function determination means determines the function corresponding to the base material information, using the data stored in the function database storage means.

9. The image processing apparatus according to claim 1 ,
wherein the function determination means generates an edge enhancement filter having direction dependence as the function.

10. The image processing apparatus according to claim 9 ,
wherein the function determination means generates, as the function, a first direction filter which is an edge enhancement filter acting in an image direction parallel to a first direction and a second direction filter which is an edge enhancement filter acting in an image direction parallel to a second direction that is perpendicular to the first direction.

11. The image processing apparatus according to claim 10 ,
wherein the arithmetic processing means includes:
filter processing means for performing filter processing using the function determined by the function determination means;
absolute value processing means for performing absolute value processing for calculating an absolute value of an image signal value obtained by the filter processing; and
addition processing means for adding an image for preventing bleeding in the first direction which is generated by performing the absolute value processing for a result of the filter processing using the first direction filter and an image for preventing bleeding in the second direction which is generated by performing the absolute value processing for a result of the filter processing using the second direction filter.

12. The image processing apparatus according to claim 1 , further comprising:
halftone processing means for generating a dot pattern image which defines the ink application position and the amount of ink applied from the bleeding-prevented image.

13. An ink jet printing system comprising:
the image processing apparatus according to claim 1 ;
ink jetting means for jetting the ink and applying the ink to the ink application position determined from the bleeding-prevented image in the cloth; and
control means for controlling the ink jetting means.

14. An image processing method comprising:
a base material information acquisition step of acquiring base material information including at least information indicating a quality of fiber in cloth which is a medium to be printed;
an image acquisition step of acquiring image data to be printed on the cloth; and
a bleeding prevention image processing step of generating a bleeding-prevented image indicating an ink application pattern in which at least one of an ink application position or an amount of ink applied is limited in anticipation of wetting and spreading of the ink in the cloth, on the basis of the base material information and the image data,
wherein the base material information includes weave type information indicating the type of weave and thickness information indicating a thickness of a yarn,
wherein the bleeding prevention image processing step includes:
a function determination step of determining a function used to calculate a bleeding prevention direction and a bleeding prevention range in which the application of the ink is limited on the basis of the base material information; and
an arithmetic processing step of applying the function determined by the function determination step to the image data to calculate a bleeding prevention position and bleeding prevention strength corresponding to the image data.

15. A non-transitory computer-readable tangible medium storing a program that causes a computer to function as:
base

Assignees

• Fujifilm Corp

Inventors

• Mizuno Tomohiro

Classifications

• B41J2/2132 Primary

  Print quality control characterised by dot disposition, e.g. for reducing white stripes or banding (methods for local corrections by dot omission, image edge enhancement, or multi-pass mask selection G06K15/102; colour conversion H04N1/40) · CPC title

• G06K15/021

  Adaptations for printing on specific media · CPC title

• G06K15/1881

  Halftoning (halftoning of still images in general H04N1/405, H04N1/52) · CPC title

• G06K15/002

  Interacting with the operator · CPC title

• G06K15/102

  using ink jet print heads · CPC title