Abstract: An image processing method converts an original image represented in an original color gamut to a target image represented in a target color gamut. The image processing method comprises: A) calculating a set of primary color direction deviations between a set of original primary color directions of the original color gamut and a set of target primary color directions of the target color gamut, wherein each of the set of primary color direction deviations corresponds to a primary color; B) determining, for each pixel in the original image, a corrected color coordinate of the pixel based on a set of offsets of an original color coordinate of the pixel in the original color gamut relative to the set of original primary color directions and the set of primary color direction deviations; and C) mapping, for each pixel in the original image, the corrected color coordinate of the pixel into the target color gamut to generate a target color coordinate of the pixel in the target color gamut.

Abstract: Devices and methods for automatic application of mapping functions to video signals based on inferred parameters are provided. In one example, a method, including initiating display of content based on a video signal being processed by a device, is provided. The method may further include in response to at least a first change in an intensity of ambient light or a second change in a color of the ambient light subsequent to the initiating of the display of the content based on the video signal, selecting a first mapping function applicable to pixels corresponding to frames of the video signal based at least on a first inferred parameter from a selected machine learning model. The method may further include automatically applying the first mapping function to a first plurality of pixels corresponding to a first set of frames of the video signal.

Abstract: A method of driving a transparent liquid crystal display apparatus includes a transparent display panel including a brightness sensor and a timing controller. The timing controller includes a YCbCr converter configured to convert input pixel data to YCbCr data, a histogram extractor configured to receive the YCbCr data and generate histogram information about the number of values corresponding to each of brightness data, a grayscale analysis unit configured to analyze the histogram information and determine a type of an input image, an image processer configured to process the YCbCr data according to the type of the input image and the ambient brightness information and generate an output YCbCr? data, and an RGB converter configured to convert the output YCbCr? data to output image data.

Abstract: A method of generating a summary of an audio/visual data stream is provided, the data stream comprising a plurality of consecutive frames having audio and visual properties. A plurality of shots of an audio/visual data stream are detected (step 204). A plurality of segments of the audio/visual data stream are determined (step 206), each segment comprising a plurality of the shots of the data stream having similar visual properties. A segment of the determined plurality of segments is selected (step 208). For each shot of said selected segment of said data stream, the audio in a plurality of consecutive frames which occur after the end of said shot is extracted (step 210). At least one of the shots is selected based on the extracted audio (step 212). A summary is generated to include the selected at least one of the shots (step 214).

Abstract: Playability of a copy protected video signal is improved by reducing the darkening and or venetian blind effects which tend to cause artifacts in a video signal display. To this end, the copy protection signal includes automatic gain control (AGC) signals or pulses in video lines in a portion of the active or viewable video field or frame, wherein the AGC pulses comprise non similar AGC signals from one video line to another video line. The dis-similar AGC pulses may include pulses which are deleted, blanked, attenuated, pulse width modified, modulated, etc. In addition, selected sync pulses may be pulse width, amplitude and or position modified.

Abstract: An image processing method and its associated image processing circuit for processing an image based on a sequential couleur avec memoire (SECAM) system are provided. The image includes a first pixel, a second pixel and a third pixel, which are successively arranged in a same vertical line and are respectively corresponding to a first image signal and a second image signal and a third image signal. The image processing method includes steps of calculating a chroma signal via a vertical filtering process according to the first image signal, the second image signal and the third image signal; calculating a chroma angular frequency via a frequency modulation process according to the chroma signal; and generating a chromaticity according to the chroma angular frequency.

Abstract: The present invention provides a playback apparatus for up-converting a video signal without magnifying film grains. An up-converter 5 performs up-conversion on a frame image in a video signal. A film grain detection circuit 6 detects film grains from the video signal. A frequency converter 7 converts spatial frequencies of the detected film grains on the video signal after the resolution conversion to high frequencies.

Abstract: The present invention relates to a method of copy protecting optical discs, such as CDs or DVDs. Instead of encoding data onto the CD-ROMs in a conventional manner which ensures balanced dc content, for copy protection the digital data is encoded and recorded onto the optical disc such that it is arranged to give some of the recorded digital data highly unbalanced dc content. Thus, for example, the DSV (digital sum value) value of the encoded data is recorded so that the DSV value changes continuously once 50 frames of data or more.