Image photography apparatus for clipping an image region

1. An information processing apparatus comprising:

a camera unit including an imaging sensor that captures an image;

a display that displays the image;

a user interface that detects a user input; and

a processor that:

clips an image region having a size corresponding to a photography zoom power from the image captured by the camera unit;

adjusts a clipping position at a time of clipping the image region from the image by multiplying a parameter indicative of a movement of the user input detected at the user interface by a predetermined scale factor; and

controls the display to display the clipped image region on the display, wherein

at least one of a distance or speed of movement of the user input detected at the user interface is represented as (Δxl, Δyl), and the processor:

adjusts the clipping position from an initial position defined by (0,0) to a second position defined as (-αΔxl, -αΔyl), where α represents the predetermined scale factor.

2. The information processing apparatus of claim 1 , wherein

the processor adjusts a movement amount of the clipping position by a distance determined by multiplying a distance of movement of the user input detected at the user interface by the predetermined scale factor.

3. The information processing apparatus of claim 1 , wherein

the processor adjusts a movement amount of the clipping position by a distance determined by multiplying a speed of movement of the user input detected at the user interface by the predetermined scale factor.

4. The information processing apparatus of claim 1 , wherein

the processor adjusts a movement amount of the clipping position based on a length of time the user input is detected at the user interface.

5. The information processing apparatus of claim 1 , wherein

the user interface is a touch panel including a detection area that covers an entire surface of the display.

6. The information processing apparatus of claim 1 , wherein the processor:

tracks movement of a reference image over a plurality of frames of image data captured by the camera unit; and

adjusts the clipping position in each of the plurality of frames so that the image region in each of the plurality of frames corresponds to a position of the reference image in each of the plurality of frames.

7. The information processing apparatus of claim 6 , wherein

the plurality of frames are frames of a moving image constituting a preview image at a time of capturing a still image.

8. The information processing apparatus of claim 6 , wherein

the processor controls the display to display a reduced size version of each of the plurality of frames.

9. The information processing apparatus of claim 8 , wherein

the processor controls the display to display the image region within each of the plurality of frames.

10. The information processing apparatus of claim 9 , wherein

the processor controls the display to display the tracking reference image within each of the plurality of frames.

11. The information processing apparatus of claim 1 , wherein

the processor controls the display to display a graphic indicia instructing a user to move a photography range so that the image region is placed around a center of the captured image, when the image region clipped by the clipping is near an edge portion of the captured image.

12. The information processing apparatus of claim 1 , further comprising:

a distance determining unit that determines a distance between a subject photographed by the camera unit to the camera unit.

13. The information processing apparatus of claim 12 , wherein

the processor adjusts a size of the image region clipped from the captured image based on the determined distance.

14. A method performed by an information processing apparatus, the method comprising:

capturing an image by a camera unit including an imaging sensor;

displaying, by a display, the image;

clipping an image region having a size corresponding to a photography zoom power from the image;

detecting a user input at a user interface of the information processing apparatus;

adjusting a clipping position at a time of clipping the image region from the image by multiplying a parameter indicative of a movement of the user input detected at the user interface by a predetermined scale factor; and

controlling the display to display the clipped image region, wherein

at least one of a distance or speed of movement of the user input detected at the user interface is represented as (Δxl, Δyl), and

the adjusting includes adjusting the clipping position from an initial position defined by (0,0) to a second position defined as (-αΔxl, -αΔyl), where α represents the predetermined scale factor.

15. The method of claim 14 , further comprising:

adjusting a movement amount of the clipping position by a distance determined by multiplying a distance of movement of the user input detected at the user interface by the predetermined scale factor.

16. The method of claim 14 , further comprising:

adjusting a movement amount of the clipping position by a distance determined by multiplying a speed of movement of the user input detected at the user interface by the predetermined scale factor.

17. The method of claim 14 , further comprising:

adjusting a movement amount of the clipping position based on a length of time the user input is detected at the user interface.

18. A non-transitory computer-readable medium including computer-program instructions, which when executed by an information processing apparatus, cause the information processing apparatus to perform a method comprising:

capturing an image by a camera unit including an imaging sensor;

displaying, by a display, the image;

clipping an image region having a size corresponding to a photography zoom power from the image;

detecting a user input at a user interface of the information processing apparatus;

adjusting a clipping position at a time of clipping the image region from the image by multiplying a parameter indicative of a movement of the user input detected at the user interface by a predetermined scale factor; and

controlling the display to display the clipped image region, wherein

at least one of a distance or speed of movement of the user input detected at the user interface is represented as (Δxl, Δyl), and

the adjusting includes adjusting the clipping position from an initial position defined by (0,0) to a second position defined as (-αΔxl, -αΔyl), where α represents the predetermined scale factor.

19. The information processing apparatus of claim 6 , wherein

the processor determines the reference image based on an input detected at the user interface.