Image processing apparatus and image processing method

1. An image processing apparatus comprising:

an image capturer configured to capture a plurality of images having different zoom levels;

a storage configured to store the plurality of images;

a display configured to display a first image among the plurality of images; and

a processor configured to:

control the image capturer to capture at least one image of at least one subject in the first image, the at least one image being captured with a higher zoom level than a zoom level of the first image and with focusing on the at least one subject,

store the at least one image in the storage, and

control the display to display, when a subject among the at least one subject in the first image is selected, the image of the at least one subject,

wherein the processor is further configured to control the image capturer to capture each of the at least one image with focusing on each of the at least one subject so that the at least one image is captured with a different focus on each of the at least one subject.

2. The image processing apparatus of claim 1 , wherein the processor is further configured to control the image capturer to capture the plurality of images having different zoom levels, the plurality of images including a region of interest (ROI) determined by a control signal input to the processor.

3. The image processing apparatus of claim 1 , wherein the processor is further configured to:

set at least one region of interest (ROI) based on a focus value of an input image captured by the image capturer, and

control the image capturer to zoom in on the at least one ROI and capture at least one image with respect to the at least one ROI.

4. The image processing apparatus of claim 1 , wherein the processor is further configured to:

detect a plurality of objects concluded as a same focal plane from an input image captured by the image capturer, and

control the image capturer to zoom in at a first zoom level with respect to an area including the plurality of objects, sequentially focus on the plurality of objects at the first zoom level, and capture a plurality of images having different focuses.

5. The image processing apparatus of claim 1 , wherein the processor is further configured to:

determine a region of interest (ROI) and output guide information that adjusts a field of view (FOV), and

place the ROI at a center of the FOV.

6. The image processing apparatus of claim 1 , wherein the display is further configured to display the plurality of images having different zoom levels.

7. The image processing apparatus of claim 6 , wherein the display is further configured to:

display the first image having a first zoom level, and

overlay, on the first image, at least one image having different zoom levels on at least one region of interest (ROI) included in the first image.

8. The image processing apparatus of claim 1 , wherein the processor is further configured to control the display to display, on the first image, a mark indicating a field of view (FOV) of an image having a zoom level different from the zoom level of the first image while the first image is displayed.

9. The image processing apparatus of claim 1 , wherein the display is further configured to display, on the first image, a mark indicating information about an image having a focus different from a focus of the first image while the first image is displayed.

10. The image processing apparatus of claim 1 , wherein the storage is further configured to:

store identification information of the plurality of images having the different zoom levels, and

store at least one selected from among zoom level information, field of view (FOV) information, and focus information of the plurality of images having the different zoom levels.

11. An image processing method comprising:

capturing a plurality of images including a first image and at least one image of at least one subject in the first image, the at least one image being captured with a higher zoom level than a zoom level of the first image and with focusing on the at least one subject;

displaying the first image; and

displaying, when a subject among the at least one subject in the first image is selected, the image of the at least one subject,

wherein the capturing of the plurality of images comprises capturing each of the at least one image with focusing on each of the at least one subject so that the at least one image is captured with a different focus on each of the at least one subject.

12. The image processing method of claim 11 , wherein the capturing of the plurality of images comprises capturing the plurality of images having different zoom levels with respect to a region of interest (ROI) determined by an input control signal.

13. The image processing method of claim 11 , further comprising:

setting at least one region of interest (ROI) based on a focus value of an input image,

wherein the capturing of the plurality of images comprises zooming in on the at least one ROI and capturing at least one image with respect to the at least one ROI.

14. The image processing method of claim 11 , further comprising:

detecting a plurality of objects concluded as a same focal plane from an input image,

wherein the capturing of the plurality of images comprises:

zooming in at a first zoom level with respect to an area including the plurality of objects; and

sequentially focusing on the plurality of objects at the first zoom level and capturing a plurality of images having different focuses.

15. The image processing method of claim 11 , further comprising:

determining a region of interest (ROI); and

outputting guide information that adjusts a field of view (FOV) and placing the ROI at a central portion of the FOV.

16. The image processing method of claim 11 , further comprising:

displaying the plurality of images having different zoom levels.

17. An image processing apparatus comprising:

an image capturer configured to capture a plurality of images having different zoom levels with focusing on a subject;

a processor configured to generate an image file including refocus information and image data with respect to each of the plurality of images; and

a storage configured to store the image file,

wherein the refocus information comprises information indicating that the corresponding image file is a refocusable image, and a path of a file to be referred for refocus processing.

18. An image processing apparatus comprising:

a storage configured to store a plurality of images having different zoom levels with focusing on a subject and refocus information;

a display configured to display a first image among the plurality of images; and

a processor configured to control, when a control input is received, the display to display a second image based on the refocus information, the second image having a zoom level different from a zoom level of the first image among the plurality of images,

wherein the refocus information comprises information indicating that the corresponding image file is a refocusable image, and a path of a file to be referred for refocus processing.