Image processing apparatus and image processing method

• US 9,323,490 B2
• Filed: 03/26/2014
• Issued: 04/26/2016
• Est. Priority Date: 03/29/2013
• Status: Expired due to Fees

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Yasutomi, Kei
• Primary Examiner(s): Ghayour, Mohammad
• Assistant Examiner(s): RODRIGUEZGONZALE, LENNIN R
• Application Number:
  US14/226,054
• Publication Number:
  US 20140293341A1
• Time in Patent Office: 762 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 3/1208 resulting in improved quality of the output result, e.g. print layout, colours, workflows, print preview
• CPC Class Codes: G06F 3/1256 User feedback, e.g. print preview, test print, proofing, pre-flight checks
• CPC Class Codes: H04N 1/6011 with simulation on a subsidiary picture reproducer H04N1/622 takes precedence; matching two or more picture reproducers H04N1/6052
• CPC Class Codes: H04N 1/6086 by scene illuminant, i.e. conditions at the time of picture capture, e.g. flash, optical filter used, evening, cloud, daylight, artificial lighting, white point measurement, colour temperature
• CPC Class Codes: H04N 1/6097 depending on the characteristics of the output medium, e.g. glossy paper, matt paper, transparency or fabrics

Abstract

An image processing device that displays a printed material, includes a first calculator configured to calculate display data based on: original data of an image printed on a sheet of paper; first data indicating diffuse reflection of the sheet; second data used for giving regular reflection texture of the sheet to a display image for displaying texture of the printed material; and third data used for giving regular reflection texture of the image to the display image for displaying the texture of the printed material.

Claims

1. An image processing device that displays a printed material, comprising:

a processor configured to,

calculate display data based on,

original data of an image printed on a sheet of paper,

first data indicating diffuse reflection of the sheet, the first data being a function of a position of a surface on the sheet,

second data indicating regular reflection texture of the sheet to a display image for displaying texture of the printed material, the second data being a function of the position on surface on of the sheet, the second data containing (i) fourth data indicating the regular reflection of the sheet, (ii) fifth data used for instructing segmentation of an area in which the fourth data is to be applied and an area in which the fourth data is not to be applied, and (iii) sixth data indicating ratios at which the fourth data is applied, and

third data indicating regular reflection texture of the image to the display image for displaying the texture of the printed material, the third data containing (i) seventh data indicating regular reflection of the image, (ii) eighth data used for instructing segmentation of an area in which the seventh data is to be applied and an area in which the seventh data is not to be applied, and (iii) ninth data indicating ratios at which the seventh data is applied;

place the sixth data at a position in a virtual three-dimensional space;

place the original data in such a way that a placement relationship with the sixth data is satisfied; and

calculate the second data based on (i) a value of the sixth data at a position indicated by a reflection vector of a vector directed from a viewpoint portion in the virtual three-dimensional space toward a position of interest in the original data, (ii) a value of the fifth data at the position of interest in the original data, and (iii) a value of fourth data at the position of interest in the original data.

2. The image processing device according to claim 1, wherein the processor includes an image-portion regular-reflection-applicable-area data generating unit configured to generate the eighth data from the original data.

3. The image processing device according to claim 1, wherein the processor includes a paper-portion regular-reflection-applicable-area data generating unit configured to generate the fifth data from the original data.

4. The image processing device according to claim 1, further comprising an image-portion regular reflection data generating unit configured to generate the seventh data from the original data.

5. The image processing device according to claim 2, wherein the processor is configured to,

calculate, from the original data, tenth data indicating an amount of toner attached;

and

convert the tenth data into the eighth data.

6. The image processing device according to claim 3, wherein the processor is configured to,

calculate, from the original data, tenth data indicating an amount of toner attached;

and

convert the tenth data into the fifth data.

7. The image processing device according to claim 1, wherein each of the sixth data and the ninth data has data values that differ according to positions.

8. The image processing device according to claim 1, wherein the first data, the fourth data, the fifth data, the sixth data, the seventh data, the eighth data, and the ninth data differ according to a type of the sheet.

9. The image processing device according to claim 1, wherein a normal vector at each position of the original data changes depending on the position of the original data.

10. The image processing device according to claim 1, wherein the processor includes a position determining unit configured to determine an arrangement position of each position of the original data upon reflecting a folding operation.

11. The image processing device of claim 1, wherein the processor is configured to,

estimate three-dimensional color data from one-dimensional total toner attachment amount data indicating a total amount of toner to apply to various positions of the sheet to generate the original image, and

generate one or more of the second data and the third data based on the estimated three-dimensional color data.

12. The image processing device of claim 11, wherein the processor is configured to calculate the display data such that a weight given to the regular reflection of the sheet is inversely proportional to the one-dimensional total toner attachment amount data.

13. An image processing device that displays a printed material, comprising:

a processor configured to,

calculate display data based on,

original data of an image printed on a sheet of paper,

first data indicating diffuse reflection of the sheet, the first data being a function of a position of a surface on the sheet,

second data indicating regular reflection texture of the sheet to a display image for displaying texture of the printed material, the second data being a function of the position of on surface on of the sheet, the second data containing (i) fourth data indicating the regular reflection of the sheet, (ii) fifth data used for instructing segmentation of an area in which the fourth data is to be applied and an area in which the fourth data is not to be applied, and (iii) sixth data indicating ratios at which the fourth data is applied, and

third data indicating regular reflection texture of the image to the display image for displaying the texture of the printed material, the third data containing (i) seventh data indicating regular reflection of the image, eighth data used for instructing segmentation of an area in which the seventh data is to be applied and an area in which the seventh data is not to be applied, and (iii) ninth data indicating ratios at which the seventh data is applied;

place the ninth data at a position in a virtual three-dimensional space;

place the original data in such a way that a placement relationship with the ninth data is satisfied; and

calculate the third data based on la a value of the ninth data at a position indicated by a reflection vector of a vector directed from a viewpoint portion in the virtual three-dimensional space toward a position of interest in the original data, (ii) a value of the eighth data at the position of interest in the original data, and (iii) a value of the seventh data at the position of interest in the original data.

14. An image processing device that displays a printed material, comprising:

a processor configured to calculate display data based on,

original data of an image printed on a sheet of paper,

first data indicating diffuse reflection of the sheet, the first data being a function of a position of a surface on the sheet,

second data indicating regular reflection texture of the sheet to a display image for displaying texture of the printed material, the second data being a function of the position of on surface on of the sheet, the second data containing (i) fourth data indicating the regular reflection of the sheet, (ii) fifth data used for instructing segmentation of an area in which the fourth data is to be applied and an area in which the fourth data is not to be applied, and (iii) sixth data indicating ratios at which the fourth data is applied, and

third data indicating regular reflection texture of the image to the display image for displaying the texture of the printed material, the third data containing (i) seventh data indicating regular reflection of the image, (ii) eighth data used for instructing segmentation of an area in which the seventh data is to be applied and an area in which the seventh data is not to be applied, and (iii) ninth data indicating ratios at which the seventh data is applied, wherein,

when a position indicating a local maximum value of the sixth data and a local maximum value of the eighth data are set to (x₀, y₀), a value PR(x, y) of the sixth data and a value IR(x, y) of the ninth data have an attenuation characteristic represented in