Electronic device and method for generating thumbnails based on captured images

1. An electronic device comprising:

a first image sensor disposed on a first surface of the electronic device;

a plurality of image sensors including a second image sensor the plurality of image sensors disposed on a second surface opposite to the first surface;

a touchscreen display; and

processor configured to:

obtain first image data using the second image sensor,

control the touchscreen display to display at least a portion of the first image data as a preview image,

receive, via the touchscreen display, a user input to capture a photographing image,

in response to the user input, generate a first thumbnail image corresponding to the preview image using the at least a portion of the first image data and generate the photographing image using the at least a portion of the first image data and at least a portion of second image data obtained using at least one of the plurality of image sensors without the second image sensor, and

after generating the photographing image, generate a second thumbnail image, which is distinct from the first thumbnail image, corresponding to the photographing image using at least a portion of the photographing image.

2. The electronic device of claim 1 , wherein the processor comprises:

a first image processing module configured to process the first image data received from the first image sensor; and

a second image processing module configured to process the second image data received from the second image sensor.

3. The electronic device of claim 1 wherein the processor is configured to process the first image data and generate the preview image of a format displayable on the touchscreen display and metadata about corresponding first image data.

4. The electronic device of claim 1 , wherein the first image data comprises an image of a resolution less than the second image data.

5. The electronic device of claim 1 , wherein the first thumbnail image is displayable while a camera application is being executed.

6. The electronic device of claim 1 , wherein the processor is configured to: in response to the user input, select the second image data from among a plurality of image data obtained using the second image sensor based on a metadata of the first image data; and generate the photograph image using the at least a portion of the first image data and at least portion of the selected second image data.

7. The electronic device of claim 6 , wherein the metadata of the first image data includes at least one of a frame identifier of image data, an image acquisition time stamp, focus information, or image setting information (EXIF).

8. A method in an electronic device, the method comprising:

obtaining first image data using a second image sensor included in a plurality of image sensors, the plurality of image sensors disposed on a second surface opposite a first surface on which a first image sensor is disposed;

displaying, on a touchscreen display, at least a portion of the first image data as a preview image;

receiving, via the touchscreen display, a user input capturing a photographing image;

in response to the user input, generating a first thumbnail image corresponding to the preview image using the at least a portion of the first image data and generating a photographing image using the at least a portion of the first image data and at least a portion of second image data obtained using at least one of the plurality of image sensors without the second image sensor; and

after generating the photographing image, generating a second thumbnail image, which is distinct from the first thumbnail image, corresponding to the photographing image using at least a portion of the photographing image.

9. The method of claim 8 ,

wherein the displaying the first image data comprises: converting the first image data among one or more image data into the preview image using a first image processing module.

10. The method of claim 9 , wherein

the first thumbnail image comprises: in response to receiving the user input, generating an image of less resolution than the preview image using at least part of the preview image.

11. The electronic device of claim 1 , wherein

the processor is configured to: synchronize the first image data and the second image data based on a processing delay time of the first image data and a processing delay time of the second image data; and generate the photographing image based on at least a portion of the synchronized first image data and at least a portion of the synchronized second image data.

12. The electronic device of claim 11 , wherein the processing delay time of the first image data is greater than the processing delay time of the second image data.

13. The electronic device of claim 1 , wherein a capacity of the first image data is less than a capacity of the second image data.

14. The method of claim 8 , wherein the first thumbnail image is displayable while a camera application is being executed.

15. The method of claim 8 , wherein generating the photographing image comprises: in response to the user input, selecting the second image data from among a plurality of image data obtained using the second image sensor based on a metadata of the first image data; and generating the photograph image using the at least a portion of the first image data and at least portion of the selected second image data.

16. The method of claim 15 , wherein the metadata of the first image data includes at least one of a frame identifier of image data, an image acquisition time stamp, focus information, or image setting information (EXIF).

17. The method of claim 8 , wherein generating the photographing image comprises: synchronizing the first image data and the second image data based on a processing delay time of the first image data and a processing delay time of the second image data; and generating the photographing image based on at least a portion of the synchronized first image data and at least a portion of the synchronized second image data.

18. The method of claim 17 , wherein the processing delay time of the first image data is greater than the processing delay time of the second image data.

19. The method of claim 8 , wherein a capacity of the first image data is less than a capacity of the second image data.

20. A portable communication device comprising:

a first image sensor disposed on a first surface of the portable communication device;

a plurality of second image sensors disposed on a second surface opposite to the first surface, the plurality of second image sensors including a second image sensor;

a touchscreen display; and

a processor configured to:

obtain, using the second image sensor, a first image, wherein the processor when obtaining the first image, the processor is configured to generate acquisition time information or frame identification information corresponding to the first image as at least part of metadata corresponding to the first image;

present, via the touchscreen display, at least one portion of the first image as a preview image;

while the preview image is displayed, receive a user input via the touchscreen display to capture a photographing image;

in response to the user input, select at least one second image of a plurality of second images based at least in part on the acquisition time information or the frame identification information, the plurality of second images obtained in a second resolution higher than a first resolution using the second image sensor;

generate the photographing image using the first image and the at least one second image; and generate a thumbnail image corresponding to the photographing image using at least part of the first image and a corresponding one of the acquisition time information and the frame identification information corresponding to the first image.