IMAGE-PROVIDING APPARATUS AND CONTROL METHOD THEREOF, PRINTING APPARATUS AND CONTROL METHOD THEREOF, AND PRINTING SYSTEM

• US 20080231870A1
• Filed: 02/22/2008
• Published: 09/25/2008
• Est. Priority Date: 03/19/2007
• Status: Active Grant

• Current Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Original Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Inventors: Sasaki, Futoshi
• Granted Patent: US 8,169,646 B2
• Time in Patent Office: Days
• US Class Current: 358/1.5
• CPC Class Codes: H04N 1/00204 with a digital computer or a digital computer system, e.g. an internet server programmed control between transmitter and receiver or between image input and image output device H04N1/32561
• CPC Class Codes: H04N 1/00278 with a printing apparatus, e.g. a laser beam printer
• CPC Class Codes: H04N 1/00408 Display of information to the user, e.g. menus
• CPC Class Codes: H04N 1/00482 outputting a plurality of job set-up options, e.g. number of copies, paper size or resolution
• CPC Class Codes: H04N 1/00493 Particular location of the interface or console
• CPC Class Codes: H04N 1/2158 using a detachable storage unit
• CPC Class Codes: H04N 1/3878 Skew detection or correction
• CPC Class Codes: H04N 2201/0036 Detecting or checking connection
• CPC Class Codes: H04N 2201/0041 Point to point H04N2201/0039 takes precedence
• CPC Class Codes: H04N 2201/0049 By wire, cable or the like
• CPC Class Codes: H04N 2201/0055 By radio
• CPC Class Codes: H04N 2201/0082 Image hardcopy reproducer H04N2201/0091 - H04N2201/0094 take precedence

Abstract

A composite image is generated by compositing blank regions generated by tilt correction with achromatic pixels or pixels contained in the non-overlapping regions that do not overlap with the region of the original image as a result of tilt correction. The data of this composite image, which is used as image data used for printing, is provided to a printing apparatus having an automatic correction feature. As a result, variation in correction results due to the amount of tilt correction is minimized when images corrected for tilt are automatically corrected and printed.

Claims

1. An image-providing apparatus providing image data used for printing to a printing apparatus, comprising:

generation unit adapted to generate image data used for printing from data of an original image; and

communication unit adapted to provide the image data used for printing to a connected printing apparatus,

wherein, when the original image is rotated during generation of the image data used for printing, the generation unit, along with obtaining a rotated image by rotating the original image, generates image data used for printing by including achromatic pixels or pixels from non-overlapping regions that do not overlap with a region corresponding to the original image within the rotated image in blank regions of the rotated image.

2. The image-providing apparatus according to claim 1, wherein the generation unit generates partial images by geometric transformation of the non-overlapping regions and generates the image data used for printing by compositing the generated partial images with regions of corresponding shapes among the blank regions.

3. The image-providing apparatus according to claim 1, wherein the achromatic pixels have a density equal to the average of the brightness of all the pixels contained in the non-overlapping regions.

6. The image-providing apparatus according to claim 1, wherein the generation unit generates the rotated image as the image data used for printing when automatic image correction in the printing apparatus has not been selected in the print setting used when printing the image data used for printing with the printing apparatus.

4. An image-providing apparatus providing image data used for printing to a printing apparatus, comprising:

generation unit adapted to generate image data used for printing from data of an original image; and

communication unit adapted to provide the image data used for printing to a connected printing apparatus,

wherein, when the original image is rotated during generation of the image data used for printing, the generation unit, along with obtaining a rotated image by rotating the original image, generates a histogram from the data of the original image and generates the image data used for printing using the information of the histogram and the rotated image.

5. An image-providing apparatus providing image data used for printing to a printing apparatus, comprising:

generation unit adapted to generate image data used for printing from data of an original image; and

communication unit adapted to provide the image data used for printing to a connected printing apparatus,

wherein, when the original image is rotated during generation of the image data used for printing, the generation unit, along with obtaining a rotated image by rotating the original image, generates the image data used for printing using the rotated image and information describing the way the original image was rotated to obtain the rotated image.

7. An image-providing apparatus providing image data used for printing to a printing apparatus, comprising:

generation unit adapted to generate image data used for printing from data of an original image;

correction unit adapted to perform automatic correction of image data; and

communication unit adapted to provide the image data used for printing to a connected printing apparatus,

wherein, when the original image is rotated during generation of the image data used for printing, the generation unit obtains a rotated image by rotating the original image and, along with that, if automatic image correction in the printing apparatus has been selected in the print setting used when printing the image data used for printing with the printing apparatus, deselects the automatic image correction selection in the print setting and generates, as the image data used for printing, a rotated image obtained by applying image correction using the correction unit.

8. A printing apparatus, comprising:

reception unit adapted to receive data of a rotated image obtained by rotating an original image and a histogram of the original image from an image-providing apparatus;

correction unit adapted to correct the data of the rotated image based on the histogram; and

output unit adapted to produce printed output using the data of the rotated image corrected by the correction unit.

9. A printing apparatus, comprising:

reception unit adapted to receive data of a rotated image obtained by rotating an original image and information describing contents of a rotation process applied to the original image in order to obtain the rotated image from an image-providing apparatus;

identification unit adapted to identify a blank region contained in the rotated image from the information describing the contents of the rotation process and the size of the rotated image;

correction unit adapted to correct the data of the rotated image without using information of pixels of the blank region within the rotated image; and

output unit adapted to produce printed output using the data of the rotated image corrected by the correction unit.

10. A printing system in which an image-providing apparatus and a printing apparatus are mutually communicatable, wherein the image-providing apparatus comprises:

generation unit adapted to generate image data used for printing from data of an original image which, when the original image is rotated during generation of the image data used for printing, obtains a rotated image by rotating the original image and, at the same time, generates a histogram from the data of the original image and generates the image data used for printing using the rotated image and information of the histogram; and

communication unit adapted to provide the image data used for printing to the printing apparatus, and

the printing apparatus comprises;

reception unit adapted to receive the image data used for printing from the image-providing apparatus;

correction unit adapted to correct the data of the rotated image based on the information of the histogram of the original image and the data of the rotated image contained in the image data used for printing; and

output unit adapted to produce printed output using the data of the rotated image corrected by the correction unit.

11. A printing system in which an image-providing apparatus and a printing apparatus are mutually communicatable, wherein the image-providing apparatus comprises:

generation unit adapted to generate image data used for printing from data of an original image which, when the original image is rotated during generation of the image data used for printing, obtains a rotated image by rotating the original image and, at the same time, generates the image data used for printing using the rotated image and information describing the way the original image was rotated to obtain the rotated image; and

communication unit adapted to provide the image data used for printing to a connected printing apparatus, and

the printing apparatus comprises;

reception unit adapted to receive the image data used for printing from the image-providing apparatus;

identification unit adapted to identify a blank region contained in the rotated image from information describing contents of the rotation process and the size of the rotated image contained in the image data used for printing;

correction unit adapted to correct the data of the rotated image without using information of pixels of the blank region within the rotated image contained in the image data used for printing; and

output unit adapted to produce printed output using the data of the rotated image corrected by the correction unit.

12. A printing system in which an image-providing apparatus and a printing apparatus are mutually communicatable, wherein the image-providing apparatus comprises:

generation unit adapted to generate image data used for printing from data of an original image, which, when the original image is rotated during generation of the image data used for printing, obtains a rotated image by rotating the original image and, along with that, generates image data used for printing by including achromatic pixels or pixels from non-overlapping regions that do not overlap with a region corresponding to the original image within the rotated image in a blank region of the rotated image, and

communication unit adapted to provide the image data used for printing to a connected printing apparatus, and

the printing apparatus comprises;

automatic correction unit adapted to automatically correct the image data used for printing.

13. A control method for an image-providing apparatus providing image data used for printing to a printing apparatus, comprising the steps of:

generating image data used for printing from data of an original image, and

effecting communication to provide the image data used for printing to a connected printing apparatus by communication unit,

wherein, when the original image is rotated during generation of the image data used for printing, the generating step involves obtaining a rotated image by rotating the original image and, along with that, generating image data used for printing by including achromatic pixels or pixels from non-overlapping regions that do not overlap with a region corresponding to the original image within the rotated image in a blank region of the rotated image.

14. A control method for an image-providing apparatus providing image data used for printing to a printing apparatus, comprising the steps of:

generating image data used for printing from data of an original image, and

effecting communication to provide the image data used for printing to a connected printing apparatus by communication unit,

wherein, when the original image is rotated during generation of the image data used for printing, the generating step involves obtaining a rotated image by rotating the original image and, along with that, generating a histogram from data of the original image and generating the image data used for printing using information of the histogram and the rotated image.

15. A control method for an image-providing apparatus providing image data used for printing to a printing apparatus, comprising the steps of:

generating image data used for printing from data of an original image, and

effecting communication to provide the image data used for printing to a connected printing apparatus by communication unit,

wherein, when the original image is rotated during generation of the image data used for printing, the generating step involves obtaining a rotated image by rotating the original image and, along with that, generating the image data used for printing using the rotated image and information describing the way the original image was rotated to obtain the rotated image.

16. A control method for an image-providing apparatus having correction unit adapted to perform automatic correction of image data and providing image data used for printing to a printing apparatus, comprising the steps of:

generating image data used for printing from data of an original image; and

effecting communication to provide the image data used for printing to a connected printing apparatus,;

wherein, when the original image is rotated during generation of the image data used for printing, the generating step obtains a rotated image by rotating the original image and, along with that, if automatic image correction in the printing apparatus has been selected in the print setting used when printing the image data used for printing with the printing apparatus, deselects the automatic image correction selection in the print setting and generates, as the image data used for printing, a rotated image obtained by applying image correction using the correction unit.

17. A control method for a printing apparatus comprising the steps of:

receiving data of a rotated image obtained by rotating an original image and a histogram of the original image from an image-providing apparatus by receiving unit;

correcting the data of the rotated image based on the histogram; and

producing printed output by output unit using the data of the rotated image corrected in the correction step.

18. A control method for a printing apparatus comprising the steps of:

receiving data of a rotated image obtained by rotating an original image and information describing contents of a rotation process applied to the original image in order to obtain the rotated image from an image-providing apparatus by receiving unit;

identifying a blank region contained in the rotated image from the information describing the contents of the rotation process and the size of the rotated image;

correcting the data of the rotated image without using information of pixels of the blank region within the rotated image; and

producing printed output by output unit using the data of the rotated image corrected in the correction step.