Imaging device, imaging method, and imaging program for displaying a composite image indicating focus deviation

1. An imaging device for generating image data on the basis of light received by an imaging element, the imaging device comprising:

a display unit including a display screen which displays an image;

a focus unit which detects a focus deviation; and

a display controller which causes the display unit to display a composite image in which a first image of a first region of at least a portion of an image of the image data and the image of the image data are combined,

in the composite image, the first image being displayed in a position shifted from the first region in accordance with the focus deviation, and color of at least one of the first image and the image of the image data being altered so that the first image and the image of the image data are distinguishable from each other.

2. The imaging device according to claim 1 , wherein

the display controller causes the display unit to display the composite image in which the color of the first image is altered so that the first image is in monochrome.

3. The imaging device according to claim 1 , wherein

the display controller causes the display unit to display the composite image in which the color of the image of the image data is altered so that the image of the image data is in monochrome.

4. The imaging device according to claim 1 , wherein

the display controller causes the display unit to display the composite image in which the color of both of the first image and the image of the image data is altered.

5. The imaging device according to claim 1 , wherein

the focus unit detects the focus deviation in a focus region in the image of the image data, and

the display controller causes the display unit to display the composite image in which the first image is displayed in the position corresponding to the focus region.

6. The imaging device according to claim 5 , wherein

the focus region has a rectangular shape.

7. The imaging device according to claim 5 , further comprising

an operating unit which is operated by a user to add, remove, move or resize the focus region.

8. The imaging device according to claim 1 , wherein

the display controller causes the display unit to display the composite image in which the first image, a second image of a second region of a portion of the image of the image data, and the image of the image data are combined, the second region being different from the first region,

in the composite image, the second image is displayed in a position shifted from the second region in accodance with the focus deviation.

9. The imaging device according to claim 8 , wherein

the display controller causes the display unit to display the composite image in which the first image, the second image, a third image of a third region of a portion of the image of the image data, and the image of the image data are combined, the third region being different from the first region and the second region,

in the composite image, the third image is displayed in a position shifted from the third region in accordance with the focus deviation.

10. An image display method comprising:

receiving light from an object;

generating image data on the basis of the light;

detecting a focus deviation; and

causing a display unit to display a composite image in which a first image of a first region of at least a portion of an image of the image data and the image of the image data are combined,

in the composite image, the first image being displayed in a position shifted from the first region in accordance with the focus deviation, and color of at least one of the first image and the image of the image data being altered so that the first image and the image of the image data are distinguishable from each other.

11. A non-transitory computer-readable storage medium encoded with executable computer program comprising instructions for:

receiving light from an object;

generating image data on the basis of the light;

detecting a focus deviation; and

causing a display unit to display a composite image in which a first image of a first region of at least a portion of an image of the image data and the image of the image data are combined,

in the composite image, the first image being displayed in a position shifted from the first region in accordance with the focus deviation, and color of at least one of the first image and the image of the image data being altered so that the first image and the image of the image data are distinguishable from each other.