Abstract: A display apparatus, a method of controlling the same, and a server thereof are provided, in which the display apparatus includes: a communication unit which communicates with a terminal via a conversation mode; a video processor which processes an image related to the conversation mode; a display unit which displays the image processed by the video processor; and a controller which controls the display unit to display a conversation graphical user interface (GUI) comprising a translation selection item and a conversation window for having a conversation with a user of the terminal if the conversation mode is selected, and provides a result from a translation of the conversation if the translation selection item is selected.

Abstract: A dynamic gain adjustment method and apparatus based on brightness are provided. The dynamic gain adjustment method and apparatus amplify or attenuate high frequency components of an input video signal by dynamically varying a gain that is applied to a peaking algorithm block for picture quality improvement in a video processing device, such as a digital television, based on an average picture level (APL) of the input video signal. The gain can be dynamically adjusted when the APL of the input video signal is high or low, and thus saturation of the video signal during the operation of the peaking block can be prevented.

Abstract: Disclosed is a video processing apparatus including: a brightness adjusting part which adjusts the brightness of a whole portion of a received video signal according to a brightness adjusting value; and a brightness stretching part which calculates gradient values to stretch a first brightness in a first portion including a smaller brightness value than a first reference value and a second brightness in a second portion including a larger brightness value than a second reference value in the received video signal, and outputs the received video signal having the brightness adjusted by the brightness adjusting part in a third portion including a smaller brightness value than a minimum brightness value and in a fourth portion including a larger brightness value than a maximum brightness value in the received video signal by applying the calculated gradient values to the third portion and the fourth portion, respectively, to display the brightness of the received video signal corresponding to the third portion a

Abstract: Provided are a display device and method for altering images, the apparatus including: an input unit operable to receive a left image and a right image; and an image altering unit which is operable to alter the received left image and the received right image and to output an output image signal including the altered left image and the altered right image, wherein the left image is altered by changing a first portion, which is near a boundary area in the left image, and wherein the right image is altered by changing a second portion, which is near a boundary area in the right image.

Abstract: A video processing apparatus including a display comprises a filter for receiving a video signal containing video information and ancillary information related to the video information and having a predetermined frequency. The filter passes a component corresponding to the frequency of the video signal. An ancillary information extractor extracts the ancillary information from the video signal passed by the filter. A video processor processes the video signal so that the ancillary information extracted by the ancillary information extractor is displayed on the display. The video processing apparatus is able to enhance the reliability of ancillary information extraction by removing the influence of noise.

Abstract: An image processing apparatus and an image processing method are provided for enhancing the picture quality of images by extracting additional information from non-standard signals without an error. A signal determination unit receives an image signal including an image interval containing an image and an additional information interval containing additional information regarding the image. A determination is made as to whether the additional information exists in the additional information interval. An additional information extractor extracts and outputs the additional information from the additional information interval, if the signal determination unit determines that the additional information exists in the additional information interval.

Abstract: A video signal processing apparatus and video processing method are provided, which can reduce an influence of noise and enhance fineness of the image. A signal division unit divides a video signal into a low frequency component and a high frequency component of the video signal. A signal eliminating unit eliminates a component within a magnitude range of noise from the high frequency component of the video signal output from the signal division unit. A signal combining unit combines the low frequency component of the video signal output from the signal division unit and the high frequency component of the video signal from which the component within the magnitude range of noise is eliminated.

Abstract: A display apparatus and a method for providing a user interface (UI) applicable thereto, are provided. The display apparatus controls so that, if a direction of a user gesture recognized at a gesture recognizing unit is within a first range from a first direction, an item arranged at a predetermined location is selected from among items listed in the user menu, in which the first direction is vertical to a direction of the user menu layout. As a result, the user can operate the user menu conveniently with his bodily gestures such as hand gestures.

Abstract: There are provided a signal processing apparatus and a control method thereof. The signal processing apparatus includes: a noise detecting unit which detects a signal-to-noise ratio of an input video signal; a coring unit which performs coring to remove a component of the video signal having a level within a predetermined reference range; and a control unit which adjusts the reference range of the coring unit corresponding to the detected signal-to-noise ratio and controls the coring unit to core the video signal based on the adjusted reference range.

Abstract: A method and an apparatus are provided for correcting the frequency characteristics of a carrier chrominance signal, which, by use of the correcting signal for the frequency characteristic involved in a vertical blanking interval, determine whether the frequency characteristics of the carrier chrominance signal are distorted and correct the frequency characteristics. A band pass filter is used which determines a degree of the frequency characteristic distortion of the carrier chrominance signal band from the correcting signal for the frequency characteristic, and has a gain in accordance with the determined result. If the frequency characteristic of the carrier chrominance signal involved in the input composite video signal is distorted by the frequency characteristics and so on of the analog broadcasting radio channel and the broadcasting receiver, the distortion is corrected whereby a stable reproduction of the color signal is possible irrespective of the broadcasting channels and the broadcasting receiver.

Abstract: An apparatus and method of extracting a sync signal from an analog composite video signal includes a controller to decide whether a horizontal sync signal in the analog composite video signal is a distorted abnormal signal, and extracts the horizontal sync signal from the composite video signal using a separate counter if the analog composite video signal is the distorted abnormal signal A sync signal can be precisely extracted from the distorted abnormal signal. Therefore, an overall system synchronization of the apparatus can be stable, and distortions in output images can be prevented.

Abstract: Disclosed is a video processing apparatus including: a brightness adjusting part which adjusts the brightness of a whole portion of a received video signal according to a brightness adjusting value; and a brightness stretching part which calculates gradient values to stretch a first brightness in a first portion including a smaller brightness value than a first reference value and a second brightness in a second portion including a larger brightness value than a second reference value in the received video signal, and outputs the received video signal having the brightness adjusted by the brightness adjusting part in a third portion including a smaller brightness value than a minimum brightness value and in a fourth portion including a larger brightness value than a maximum brightness value in the received video signal by applying the calculated gradient values to the third portion and the fourth portion, respectively, to display the brightness of the received video signal corresponding to the third portion a

Abstract: A dynamic gain adjustment method and apparatus based on brightness are provided. The dynamic gain adjustment method and apparatus amplify or attenuate high frequency components of an input video signal by dynamically varying a gain that is applied to a peaking algorithm block for picture quality improvement in a video processing device, such as a digital television, based on an average picture level (APL) of the input video signal. The gain can be dynamically adjusted when the APL of the input video signal is high or low, and thus saturation of the video signal during the operation of the peaking block can be prevented.

Abstract: An image processing apparatus and an image processing method are provided for enhancing the picture quality of images by extracting additional information from non-standard signals without an error. A signal determination unit receives an image signal including an image interval containing an image and an additional information interval containing additional information regarding the image. A determination is made as to whether the additional information exists in the additional information interval. An additional information extractor extracts and outputs the additional information from the additional information interval, if the signal determination unit determines that the additional information exists in the additional information interval.

Abstract: A video processing apparatus including a display comprises a filter for receiving a video signal containing video information and ancillary information having a predetermined frequency as information with respect to the video information. The filter passes a component corresponding to the frequency of the video signal, an ancillary information extractor extracts the ancillary information from the video signal passed by the filter, and a video processor processes the video signal so that the ancillary information extracted by the ancillary information extractor is displayed on the display. Video processing apparatus, an ancillary information processing apparatus and a video processing method, which are capable of enhancing the reliability of ancillary information extraction by removing the influence of noise are provided.

Abstract: A video signal processing apparatus and video processing method are provided, which can reduce an influence of noise and enhance fineness of the image. A signal division unit divides a video signal into a low frequency component and a high frequency component of the video signal. A signal eliminating unit eliminates a component within a magnitude range of noise from the high frequency component of the video signal output from the signal division unit. A signal combining unit combines the low frequency component of the video signal output from the signal division unit and the high frequency component of the video signal from which the component within the magnitude range of noise is eliminated.

Abstract: A method and an apparatus are provided for correcting the frequency characteristics of a carrier chrominance signal, which, by use of the correcting signal for the frequency characteristic involved in a vertical blanking interval, determine whether the frequency characteristics of the carrier chrominance signal are distorted and correct the frequency characteristics. A band pass filter is used which determines a degree of the frequency characteristic distortion of the carrier chrominance signal band from the correcting signal for the frequency characteristic, and has a gain in accordance with the determined result. If the frequency characteristic of the carrier chrominance signal involved in the input composite video signal is distorted by the frequency characteristics and so on of the analog broadcasting radio channel and the broadcasting receiver, the distortion is corrected whereby a stable reproduction of the color signal is possible irrespective of the broadcasting channels and the broadcasting receiver.

Abstract: An apparatus and method of extracting a sync signal from an analog composite video signal includes a controller to decide whether a horizontal sync signal in the analog composite video signal is a distorted abnormal signal, and extracts the horizontal sync signal from the composite video signal using a separate counter if the analog composite video signal is the distorted abnormal signal A sync signal can be precisely extracted from the distorted abnormal signal. Therefore, an overall system synchronization of the apparatus can be stable, and distortions in output images can be prevented.