IMAGE PROCESSING APPARATUS, IMAGE CAPTURING APPARATUS, AND METHOD OF CONTROLLING THE SAME

• US 20130170769A1
• Filed: 02/22/2013
• Published: 07/04/2013
• Est. Priority Date: 02/05/2010
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Konno, Ryuhei
• Granted Patent: US 8,837,865 B2
• Time in Patent Office: Days
• US Class Current: 382/296
• CPC Class Codes: H04N 23/61 based on recognised objects
• CPC Class Codes: H04N 23/635 Region indicators; Field of view indicators
• CPC Class Codes: H04N 23/67 Focus control based on electronic image sensor signals
• CPC Class Codes: H04N 5/2621 Cameras specially adapted for the electronic generation of special effects during image pickup, e.g. digital cameras, camcorders, video cameras having integrated special effects capability
• CPC Class Codes: H04N 5/2628 Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation

Abstract

The present invention provides an image processing apparatus for performing image processing of image data in which information specifying, on a first coordinate system, a position of a portion of interest in an image is recorded, including an image processing unit configured to perform rotation processing of the image data using a second coordinate system having an origin different from that of the first coordinate system, and a change unit configured to change the information specifying the position of the portion of interest in accordance with a rotation amount of the image data by the rotation processing such that an image of the portion of interest specified by the information specifying the position of the portion of interest after the rotation processing matches that before the rotation processing.

Claims

1. An image processing apparatus for performing image processing of image data in which information specifying a position of a portion of interest in an image is recorded, comprising:

an image processing unit configured to perform rotation processing of the image data;

a change unit configured to change the information specifying the position of the portion of interest in accordance with a rotation amount of the image data by the rotation processing such that an image of the portion of interest specified by the information specifying the position of the portion of interest after the rotation processing matches that before the rotation processing.

2. The apparatus according to claim 1, wherein the change unit changes the information specifying the position of the portion of interest in accordance with a rotation amount of the image data by the rotation processing.

3. The apparatus according to claim 1, further comprising a display control unit configured to control to display the image of the portion of interest in addition to displaying an image corresponding to the image data.

4. The apparatus according to claim 1, wherein

the image data is generated by an image capturing apparatus, and

the portion of interest is a portion corresponding to a frame for auto focus, the flame is selectable in the image capturing apparatus upon generating the image data.

5. The apparatus according to claim 1, wherein

the image data is generated by an image capturing apparatus, and

the portion of interest is a portion corresponding to a frame for auto focus, the portion is used to focus on an object by the image capturing apparatus upon generating the image data.

6. The apparatus according to claim 1, wherein

the information specifying the position of the portion of interest has a rectangular shape.

7. The apparatus according to claim 1, further comprising a display control unit configured to, when displaying, on a display unit, an image corresponding to the image data which has undergone the rotation processing, display distance image in according to the position of the portion of interest.

8. The apparatus according to claim 1, further comprising a display control unit configured to control to display the image of the portion of interest, wherein said display control unit rotates the frame in accordance with the rotation amount of the image data by the rotation processing.

9. The apparatus according to claim 1, wherein

the image data is generated by an image capturing apparatus, and

the portion of interest is a portion corresponding to a dust particle sticking to an image sensor of the image capturing apparatus.

10. The apparatus according to claim 9, wherein said image processing unit performs dust erase processing for the image data which has undergone the rotation processing so as to make the dust particle unnoticeable using the information specifying the position of the portion of interest changed by said change unit.

11. An image capturing apparatus comprising:

an image capturing unit configured to capture an object to generate image data; and

an image processing apparatus of claim 1 which performs image processing of the image data generated by said image capturing unit.

20. The method according to claim 1, wherein

the image data is generated by an image capturing apparatus, and

the portion of interest is a portion corresponding to a dust particle sticking to an image sensor of the image capturing apparatus.

21. The method according to claim 20, further comprising performing dust erase processing for the image data which has undergone the rotation processing so as to make the dust particle unnoticeable using the information specifying the position of the portion of interest changed in the changing step.

12. A method of controlling an image processing apparatus for performing image processing of image data in which information specifying a position of a portion of interest in an image is recorded, comprising:

performing rotation processing of the image data; and

changing the information specifying the position of the portion of interest in accordance with a rotation amount of the image data by the rotation processing such that an image of the portion of interest specified by the information specifying the position of the portion of interest after the rotation processing matches that before the rotation processing.

13. The method according to claim 12, wherein the changing step changes the information specifying the position of the portion of interest in accordance with a rotation amount of the image data by the rotation processing.

14. The method according to claim 12, further comprising controlling to display the image of the portion of interest in addition to displaying an image corresponding to the image data.

15. The method according to claim 12, wherein

the image data is generated by an image capturing apparatus, and

the portion of interest is a portion corresponding to a frame for auto focus, the flame is selectable in the image capturing apparatus upon generating the image data.

16. The method according to claim 12, wherein

the image data is generated by an image capturing apparatus, and

the portion of interest is a portion corresponding to a frame for auto focus, the portion is used to focus on an object by the image capturing apparatus upon generating the image data.

17. The method according to claim 12, wherein

the information specifying the position of the portion of interest has a rectangular shape.

18. The method according to claim 12, further comprising, when displaying, on a display unit, an image corresponding to the image data which has undergone the rotation processing, displaying distance image in according to the position of the portion of interest.

19. The method according to claim 12, further comprising controlling to display the image of the portion of interest,

wherein the controlling step rotates the frame in accordance with the rotation amount of the image data by the rotation processing.

22. A non-transitory computer-readable storage medium storing a program for causing a computer to execute a method of controlling an image processing apparatus for performing image processing of image data in which information specifying a position of a portion of interest in an image is recorded, the program causing the computer to execute:

performing rotation processing of the image data; and

changing the information specifying the position of the portion of interest in accordance with a rotation amount of the image data by the rotation processing such that an image of the portion of interest specified by the information specifying the position of the portion of interest after the rotation processing matches that before the rotation processing.

23. The medium according to claim 22, wherein the changing step changes the information specifying the position of the portion of interest in accordance with a rotation amount of the image data by the rotation processing.

24. The medium according to claim 22, wherein the program causing the computer to execute controlling to display the image of the portion of interest in addition to displaying an image corresponding to the image data.

25. The medium according to claim 22, wherein

the image data is generated by an image capturing apparatus, and

the portion of interest is a portion corresponding to a frame for auto focus, the flame is selectable in the image capturing apparatus upon generating the image data.

26. The medium according to claim 22, wherein

the image data is generated by an image capturing apparatus, and

the portion of interest is a portion corresponding to a frame for auto focus, the portion is used to focus on an object by the image capturing apparatus upon generating the image data.

27. The medium according to claim 22, wherein

the information specifying the position of the portion of interest has a rectangular shape.

28. The medium according to claim 22, wherein the program causing the computer to execute, when displaying, on a display unit, an image corresponding to the image data which has undergone the rotation processing, displaying distance image in according to the position of the portion of interest.

29. The medium according to claim 22, wherein the program causing the computer to execute controlling to display the image of the portion of interest,

wherein the controlling step rotates the frame in accordance with the rotation amount of the image data by the rotation processing.

30. The medium according to claim 22, wherein

the image data is generated by an image capturing apparatus, and

the portion of interest is a portion corresponding to a dust particle sticking to an image sensor of the image capturing apparatus.

31. The medium according to claim 30, wherein the program causing the computer to execute processing for

the image data which has undergone the rotation processing so as to make the dust particle unnoticeable using the information specifying the position of the portion of interest changed in the changing step.