Abstract: A mobile device and methods for sharing content are provided. The mobile device includes a communicator configured to communicate with at least one external device; and a controller configured to control decryption of encrypted content that is shared with the at least one external device, in response to determining that the mobile device is located within a proximate spacing of the at least one external device.

Abstract: A mobile device and methods for sharing content are provided. The mobile device includes a communicator configured to communicate with at least one external device; and a controller configured to control decryption of encrypted content that is shared with the at least one external device, in response to determining that the mobile device is located within a proximate spacing of the at least one external device.

Abstract: A terminal for generating a live image includes a memory for storing video content, and a live image generator for selecting a number of original frames from original frames constituting the video content in a standby mode, generating a new live image by interpolating the number of selected original frames, and outputting the generated live image as live wallpaper for the standby mode.

Abstract: A method of embedding image-related information in an image, the method including: receiving an image including a plurality of frames; receiving information related to the image; generating a codeword by encoding the image-related information; and embedding the image-related information in the image by substituting macroblocks included in at least one of the plurality of frames of the image based on the generated codeword.

Abstract: A method and apparatus of access control in an electronic apparatus implementing the method are provided. The method of operating an electronic apparatus includes detecting an access request to a resource from an application included in a first area of a memory by a processor of the electronic apparatus, in response to the access request, executing an access control module included in a second area of the memory to calculate a hash value of the application by the processor, determining whether a record exists in the memory, the record corresponding to the hash value and identification information of the application, by executing the access control module by the processor, and allowing access to the resource by the processor when the record exists in the memory.

Abstract: A method of embedding a watermark in video data includes generating a watermark to be embedded in the video data, generating a bit string based on a generated watermark, and embedding a watermark in the video data by changing a quantization parameter of the video data by a predetermined value based on the bit string.

Abstract: A method of compressing video signal data via three-dimensional (3D) transformation, and decoding the compressed video signal data. The method includes: receiving transformation coefficients included in video signal data compressed via 3D transformation; selecting at least one transformation coefficient from among the received transformation coefficients based on a reproducing capability of a device for reproducing the video signal data; and decoding the compressed video signal data to video signal data in a spatial domain by 3D inverse transforming the compressed video signal data using the selected at least one transformation coefficient.

Abstract: A terminal for generating a live image includes a memory for storing video content, and a live image generator for selecting a number of original frames from original frames constituting the video content in a standby mode, generating a new live image by interpolating the number of selected original frames, and outputting the generated live image as live wallpaper for the standby mode.

Abstract: A method of embedding image-related information in an image, the method including: receiving an image including a plurality of frames; receiving information related to the image; generating a codeword by encoding the image-related information; and embedding the image-related information in the image by substituting macroblocks included in at least one of the plurality of frames of the image based on the generated codeword.

Abstract: A method of inserting concealed information in image data, the method including: dividing the image data into predetermined groups; determining whether to transform at least one pixel value included in each of the predetermined groups is transformed, according to concealed information; transforming the at least one pixel value according to the determination, and inserting the concealed information in the image data depending on whether the transformed pixel value is included in a predetermined color region.