An image of an object under a first illuminant is captured. The color of the ambient light at a device on which the image is to be displayed is identified. The image data is adjusted to compensate for the color of the ambient light as well as for the color of the first illuminant. An image based on the adjusted image data can then be displayed on the device. As such, the desired perception of the colors in the displayed image can be managed so that image quality is maintained even if the image is displayed under different ambient lighting conditions.

An interface is realized that can prevent video signals from being copied easily and which uses a luminance/color difference signal transmission scheme with an excellent harmony with a television circuit. In a video transmission using a digital interface, colorimetry information for defining the conversion from the luminance/color difference signal into a primary color signal and video aspect ratio information are transmitted along with the luminance/color difference type video signal. This allows reproduction of video with high quality and high resolution and also realizes a copyright protection which allows only the users authorized by key information to use the content of the video. With this transmission scheme, it is possible to provide a transmitting apparatus, a receiving apparatus and an interface which highly harmonize with a rationalized television-based circuit.

An interface is realized that can prevent video signals from being copied easily and which uses a luminance/color difference signal transmission scheme with an excellent harmony with a television circuit. In a video transmission using a digital interface, colorimetry information for defining the conversion from the luminance/color difference signal into a primary color signal and video aspect ratio information are transmitted along with the luminance/color difference type video signal. This allows reproduction of video with high quality and high resolution and also realizes a copyright protection which allows only the users authorized by key information to use the content of the video. With this transmission scheme, it is possible to provide a transmitting apparatus, a receiving apparatus and an interface which highly harmonize with a rationalized television-based circuit.

An electronic device is disclosed. The electronic device comprises a sensor, and a processor for acquiring the surrounding illuminance of the electronic device through the sensor, confirming a gain value for adjusting the gradation value of an image on the basis of the surrounding illuminance of the electronic device, and adjusting the gradation value of the image on the basis of the gain value, wherein the gain value is a value determined on the basis of visual sensitivity characteristics of a user.

In an image processing method, an image processing device obtains an input image from an image sensor. Each pixel of the input image is either a type-I pixel or a type-II pixel. Each type-I pixel carries a luminance channel value and no color data, and each type-II pixel carries a single color channel value and no luminance data, wherein the single color channel value is a cyan channel value, a magenta channel value, or a yellow channel value. The image processing device generates a target image by performing interpolation based on the luminance channel values and the single color channel values of the pixels of the input image, wherein each pixel in the target image corresponds in location to a pixel in the input image and has three color channel values generated by the interpolation.

In an image processing method, an image processing device obtains an input image from an image sensor. Each pixel of the input image is either a type-I pixel or a type-II pixel. Each type-I pixel carries a luminance channel value and no color data, and each type-II pixel carries a single color channel value and no luminance data, wherein the single color channel value is a cyan channel value, a magenta channel value, or a yellow channel value. The image processing device generates a target image by performing interpolation based on the luminance channel values and the single color channel values of the pixels of the input image, wherein each pixel in the target image corresponds in location to a pixel in the input image and has three color channel values generated by the interpolation.

A chrominance adjustment method and apparatus, and a storage medium are provided. The method includes: determining a color adjustment coefficient of a chrominance component of a color signal based on a reference display device maximum luminance value (RML) and/or a source maximum luminance value (SML); and adjusting the chrominance component of the color signal based on the color adjustment coefficient.

A chrominance adjustment method and apparatus, and a storage medium are provided. The method includes: determining a color adjustment coefficient of a chrominance component of a color signal based on a reference display device maximum luminance value (RML) and/or a source maximum luminance value (SML); and adjusting the chrominance component of the color signal based on the color adjustment coefficient.

Systems and methods are provided for generating color video from a dual-context camera. A dual-context camera provides a first series of video frames encoded in accordance with a full color model and a second series of video frames encoded in accordance with an underdetermined color model. The two series of video frames are interleaved as to form a series of pairs of frames, each comprising a color video frame and an underdetermined video frame. An image merger generates a composite image for each pair of frames in the series of frames. The composite image includes a set of brightness values from the underdetermined video frame and a set of chrominance values from the color video frame. A color video source replaces the underdetermined image in each of the series of pairs of frames with the composite image generated for the pair of frames to provide a color video stream.

Systems and methods are provided for generating color video from a dual-context camera. A dual-context camera provides a first series of video frames encoded in accordance with a full color model and a second series of video frames encoded in accordance with an underdetermined color model. The two series of video frames are interleaved as to form a series of pairs of frames, each comprising a color video frame and an underdetermined video frame. An image merger generates a composite image for each pair of frames in the series of frames. The composite image includes a set of brightness values from the underdetermined video frame and a set of chrominance values from the color video frame. A color video source replaces the underdetermined image in each of the series of pairs of frames with the composite image generated for the pair of frames to provide a color video stream.