Mobile terminal and method of controlling the same

1. A mobile terminal comprising:

a display unit;

a first camera configured to acquire a first image from a first view point;

a second camera configured to acquire a second image from a second view point that is different from the first view point; and

a controller configured to:

detect at least one object comprising a ghost in preview images of the first or second images,

control the display unit to display an indicator corresponding to the detected at least one object, and

determine whether a user requests high dynamic range (HDR) image processing on the detected at least one object.

2. The mobile terminal of claim 1 , wherein the controller is further configured to:

switch from a photographing mode to an HDR operating mode when the preview image of the first image comprises at least one saturation area.

3. The mobile terminal of claim 1 , wherein the controller is further configured to:

detect the at least one object when a disparity exists between overlapped preview images of the first and second images.

4. The mobile terminal of claim 1 , wherein the indicator comprises at least a highlight or a text message.

5. The mobile terminal of claim 1 , wherein the controller is further configured to:

detect selection of the detected at least one object; and

control the display unit to display information about the detected at least one object according to a distance between the mobile terminal and the detected at least one object in response to the selection of the detected at least one object.

6. The mobile terminal of claim 3 , wherein the controller is further configured to:

control the display unit to display a user selection menu that inquires whether to capture a video or an image in response to the selection of the detected at least one object.

7. The mobile terminal of claim 3 , wherein the controller is further configured to:

re-detect the at least one object comprising the ghost in the preview images of the first or second images; and

control the display unit to display an indicator corresponding to the re-detected at least one object when a distance between the mobile terminal and the re-detected at least one object is changed.

8. The mobile terminal of claim 1 , wherein:

the first camera is set to over-expose the first image, and

the second camera is set to under-expose the second image.

9. The mobile terminal of claim 8 , wherein the controller is further configured to:

overlap background images of the first and second images; and

apply histogram distribution analysis results from the first and second images to a hole when the detected at least one object in the second image is shifted to a corresponding area in the first image.

10. The mobile terminal of claim 9 , wherein the controller is further configured to:

analyze a histogram distribution of a first area, the first area corresponding to the at least one object in the first image;

analyze a histogram distribution of a second area, the second area corresponding to an area proximate to the first area; and

change the histogram distribution of the first area with reference to the histogram distribution of the second area.

11. A method of controlling a mobile terminal, the method comprising:

acquiring a first image by a first camera from a first view point;

acquiring a second image by a second camera from a second view point that is different from the first view point;

entering a high dynamic range (HDR) operating mode;

detecting at least one object comprising a ghost in preview images of the first or second images; and

displaying an indicator corresponding to the detected at least one object.

12. The method of claim 11 , further comprising:

analyzing a histogram distribution of a first area, the first area corresponding to the at least one object in the first image;

analyzing a histogram distribution of a second area, the second area corresponding to an area proximate to the first area; and

overlapping the first and the second images;

shifting the detected at least one object from the second image to a corresponding area of the first image; and

changing the histogram distribution of the first area with reference to the histogram distribution of the second area.

13. The method of claim 11 , further comprising:

switching from a photographing mode to an HDR operating mode when a preview image of the first image comprises at least one saturation area.

14. The method of claim 11 , further comprising:

detecting the at least one object when a disparity exists between overlapped preview images of the first and second images.

15. The method of claim 11 , wherein the indicator comprises at least a highlight or a text message.

16. The method of claim 11 , further comprising:

detecting selection of the detected at least one object; and

controlling a display unit to display information about the detected at least one object according to a distance between the mobile terminal and the detected at least one object in response to the selection of the detected at least one object.

17. The method of claim 14 , further comprising:

controlling a display unit to display a user selection menu that inquires whether to capture a video or an image in response to the selection of the detected at least one object.

18. The method of claim 14 , further comprising:

re-detecting the at least one object comprising the ghost in the preview images of the first or second images; and

controlling the display unit to display an indicator corresponding to the re-detected at least one object when a distance between the mobile terminal and the re-detected at least one object is changed.

19. The method of claim 11 , wherein:

the first camera is set to over-expose the first image, and

the second camera is set to under-expose the second image.

20. The method of claim 11 , further comprising:

overlapping background images of the first and second images; and

applying histogram distribution analysis results from the first and second images to a hole when the detected at least one object in the second image is shifted to a corresponding area in the first image.