Method, medium, and system with a combinational photograph thumbnail
A system, medium, and method providing a thumbnail visualizing a plurality of features representing an event to facilitate a search of images. In the system, medium, and method, photographs may be classified into groups based on metadata, e.g., embedded in a photograph file, and a thumbnail may be generated by combining object images extracted from individual representative photographs of the respective groups. The generation of the thumbnail may include extracting metadata from photograph files stored in a photograph folder, classifying the photograph files into groups based on the metadata, selecting representative photographs from the groups using color information included in the metadata, and combining object images extracted from the representative photographs into a thumbnail.
1. A method for searching for a photograph using a thumbnail, the method comprising:
extracting an object image from a first image among a plurality of images, the object image representing part of the first image;
generating a composite thumbnail which combines the extracted object image and the plurality of images; and
displaying an icon on a folder, the icon including the generated composite thumbnail.
2. The method of claim 1 , wherein the generated composite thumbnail includes a combination of object images.
3. The method of claim 1 , further comprising extracting a representative image based on metadata of the first image, and extracting the object image representing part of the first image from the extracted representative image.
4. An apparatus for searching for a photograph using a thumbnail, the apparatus comprising:
a thumbnail creating unit which extracts an object image from a first image among a plurality of images, the object image representing part of the first image, and generates a composite thumbnail which combines the extracted object image and the plurality of images; and
a display unit which displays an icon on a folder, the icon including the generated composite thumbnail.
5. The apparatus of claim 4 , wherein the generated composite thumbnail includes a combination of object images.
6. The apparatus of claim 4 , wherein the thumbnail creating unit extracts a representative image based on metadata of the first image, and extracts the object image representing part of the first image from the extracted representative image.
7. A method for searching for a photograph using a thumbnail, the method comprising:
classifying images into groups according to one or more conditions set in advance based on metadata;
extracting representative images from the images included in the groups using the metadata;
extracting object images from the extracted representative images, respectively, the object images representing a whole or part of the images;
combining the extracted object images to create a thumbnail; and
displaying the created thumbnail.
8. The method of claim 7 , wherein the classifying images into groups according to one or more conditions set in advance comprises classifying images into groups based on at least one of date information of the metadata, face detection information, and subject distance information.
9. The method of claim 7 , wherein an object image included in a face group among the object images of the extracted representative images is cropped into an object image representing a part.
10. A method for searching for a photograph using a thumbnail, the method comprising:
classifying images into groups according to one or more conditions set in advance based on metadata;
extracting representative images from the images included in the groups using the metadata;
extracting object images from the extracted representative images, respectively, the object images representing a whole or part of the images;
combining the extracted object images to create a thumbnail; and
displaying the created thumbnail,
wherein the classifying of the images comprises:
determining whether face detection information exists in a corresponding metadata of an image; and
classifying the image into a group for images emphasizing people when the face detection information exists.
11. The method of claim 10 , wherein, when face detection information does not exist in the corresponding metadata, face detection information is collected from the image through a face detector.
12. A method for searching for a photograph using a thumbnail, the method comprising:
classifying images into groups according to one or more conditions set in advance based on metadata;
extracting representative images from the images included in the groups using the metadata;
extracting object images from the extracted representative images, respectively, the object images representing a whole or part of the images;
combining the extracted object images to create a thumbnail; and
displaying the created thumbnail,
wherein the classifying of the images comprises:
determining whether face detection information exists in a corresponding metadata of an image; and
classifying the image into a group for images emphasizing people when the face detection information exists,
wherein the classifying of the image into the group for images emphasizing people comprises:
calculating a ratio of a face region to an entire region of the image; and
classifying the image into the group for images emphasizing people when the face region ratio exceeds a first threshold value.
13. The method of claim 10 , wherein the classifying of the image further comprises classifying the image into a group for images emphasizing a location when the face detection information does not exist.
14. A method for searching for a photograph using a thumbnail, the method comprising:
classifying images into groups according to one or more conditions set in advance based on metadata;
extracting representative images from the images included in the groups using the metadata;
extracting object images from the extracted representative images, respectively, the object images representing a whole or part of the images;
combining the extracted object images to create a thumbnail; and
displaying the created thumbnail,
wherein the classifying of the images comprises:
determining whether face detection information exists in a corresponding metadata of an image; and
classifying the image into a group for images emphasizing people when the face detection information exists,
wherein the classifying of the image further comprises classifying the image into a group for images emphasizing a location when the face detection information does not exist,
wherein the classifying of the image into the group for images emphasizing a location comprises:
checking subject distance information in the corresponding metadata of the image;
classifying the image into a group emphasizing scenery when the subject distance exceeds a second threshold value; and
classifying the image into a group emphasizing things when the subject distance is less than a third threshold value.
15. The method of claim 7 , wherein the classifying of the images comprises:
collecting face detection information from an image through a face detector; and
classifying the image into a group for images emphasizing people when the face detection information indicates that at least one face is sufficiently emphasized in the image to identify the image as belonging to the group for images emphasizing people.
16. A method for searching for a photograph using a thumbnail, the method comprising:
classifying images into groups according to one or more conditions set in advance based on metadata;
extracting representative images from the images included in the groups using the metadata;
extracting object images from the extracted representative images, respectively, the object images representing a whole or part of the images;
combining the extracted object images to create a thumbnail; and
displaying the created thumbnail,
wherein the classifying of the images comprises:
collecting face detection information from an image through a face detector; and
classifying the image into a group for images emphasizing people when the face detection information indicates that at least one face is sufficiently emphasized in the image to identify the image as belonging to the group for images emphasizing people,
wherein the classifying of the image into the group for images emphasizing people comprises:
calculating a ratio of a face region to an entire region of the image; and
classifying the image into the group for images emphasizing people based on the face region ratio and a threshold value.
17. A method for searching for a photograph using a thumbnail, the method comprising:
classifying images into groups according to one or more conditions set in advance based on metadata;
extracting representative images from the images included in the groups using the metadata;
extracting object images from the extracted representative images, respectively, the object images representing a whole or part of the images;
combining the extracted object images to create a thumbnail; and
displaying the created thumbnail,
wherein the classifying of the images comprises classifying an image into a group for images emphasizing a location or thing, comprising:
checking subject distance information in a corresponding metadata of the image;
classifying the image into a group emphasizing scenery based on the subject distance and a first threshold value; and
classifying the image into a group emphasizing things based on the subject distance and a second threshold value.
18. An apparatus for searching for a photograph using a thumbnail, the apparatus comprising:
a grouping unit which classifies images into groups according to one or more conditions set in advance based on metadata;
a representative photograph selecting unit which extracts representative images from the images included in the groups using the metadata;
a thumbnail creating unit which extracts object images from the extracted representative images, respectively, the object images representing a whole or part of the images, and combines the extracted object images to create a thumbnail; and
a display unit which displays the created thumbnail.
19. The apparatus of claim 18 , wherein the grouping unit classifies images into groups according to one or more conditions set in advance based on at least one of date information of the metadata, face detection information, and subject distance information.
20. The apparatus of claim 18 , wherein the thumbnail creating unit crops an object image included in a face group among the object images of the extracted representative images into an object image representing a part.
21. An apparatus for searching for a photograph using a thumbnail, the apparatus comprising:
a grouping unit which classifies images into groups according to one or more conditions set in advance based on metadata;
a representative photograph selecting unit which extracts representative images from the images included in the groups using the metadata;
a thumbnail creating unit which extracts object images from the extracted representative images, respectively, the object images representing a whole or part of the images, and combines the extracted object images to create a thumbnail; and
a display unit which displays the created thumbnail,
wherein the grouping unit determines whether face detection information exists in a corresponding metadata of an image, and classifies the image into a group for images emphasizing people when the face detection information exists.
22. The apparatus of claim 21 , wherein, when face detection information does not exist in the corresponding metadata, face detection information is collected from the image through a face detector.
23. An apparatus for searching for a photograph using a thumbnail, the apparatus comprising:
a grouping unit which classifies images into groups according to one or more conditions set in advance based on metadata;
a representative photograph selecting unit which extracts representative images from the images included in the groups using the metadata;
a thumbnail creating unit which extracts object images from the extracted representative images, respectively, the object images representing a whole or part of the images, and combines the extracted object images to create a thumbnail; and
a display unit which displays the created thumbnail,
wherein the grouping unit determines whether face detection information exists in a corresponding metadata of an image, and classifies the image into a group for images emphasizing people when the face detection information exists,
wherein the grouping unit calculates a ratio of a face region to an entire region of the image, and classifies the image into the group for images emphasizing people when the face region ratio exceeds a first threshold value.
24. The apparatus of claim 21 , wherein the grouping unit classifies the image into a group for images emphasizing a location when the face detection information does not exist.
25. An apparatus for searching for a photograph using a thumbnail, the apparatus comprising:
a grouping unit which classifies images into groups according to one or more conditions set in advance based on metadata;
a representative photograph selecting unit which extracts representative images from the images included in the groups using the metadata;
a thumbnail creating unit which extracts object images from the extracted representative images, respectively, the object images representing a whole or part of the images, and combines the extracted object images to create a thumbnail; and
a display unit which displays the created thumbnail,
wherein the grouping unit determines whether face detection information exists in a corresponding metadata of an image, and classifies the image into a group for images emphasizing people when the face detection information exists,
wherein the grouping unit classifies the image into a group for images emphasizing a location when the face detection information does not exist,
wherein the grouping unit checks subject distance information in the corresponding metadata of the image, classifies the image into a group emphasizing scenery when the subject distance exceeds a second threshold value, and classifies the image into a group emphasizing things when the subject distance is less than a third threshold value.
26. The apparatus of claim 18 , wherein the grouping unit collects face detection information from an image through a face detector, and classifies the image into a group for images emphasizing people when the face detection information indicates that at least one face is sufficiently emphasized in the image to identify the image as belonging to the group for images emphasizing people.
27. An apparatus for searching for a photograph using a thumbnail, the apparatus comprising:
a grouping unit which classifies images into groups according to one or more conditions set in advance based on metadata;
a representative photograph selecting unit which extracts representative images from the images included in the groups using the metadata;
a thumbnail creating unit which extracts object images from the extracted representative images, respectively, the object images representing a whole or part of the images, and combines the extracted object images to create a thumbnail; and
a display unit which displays the created thumbnail,
wherein the grouping unit collects face detection information from an image through a face detector, and classifies the image into a group for images emphasizing people when the face detection information indicates that at least one face is sufficiently emphasized in the image to identify the image as belonging to the group for images emphasizing people,
wherein the grouping unit calculates a ratio of a face region to an entire region of the image, and classifies the image into the group for images emphasizing people based on the face region ratio and a threshold value.
28. An apparatus for searching for a photograph using a thumbnail, the apparatus comprising:
a grouping unit which classifies images into groups according to one or more conditions set in advance based on metadata;
a representative photograph selecting unit which extracts representative images from the images included in the groups using the metadata;
a thumbnail creating unit which extracts object images from the extracted representative images, respectively, the object images representing a whole or part of the images, and combines the extracted object images to create a thumbnail; and
a display unit which displays the created thumbnail,
wherein the grouping unit checks subject distance information in a corresponding metadata of the image, classifies the image into a group emphasizing scenery based on the subject distance and a first threshold value, and classifies the image into a group emphasizing things based on the subject distance and a second threshold value.