An image processing apparatus comprises a receiver (201) for receiving an image signal comprising an encoded image. Another receiver (1701) receives a data signal from a display (107) where the data signal comprises a data field that comprises a display dynamic range indication of the display (107). The display dynamic range indication comprises at least one luminance specification for the display. A dynamic range processor (203) is arranged to generate an output image by applying a dynamic range transform to the encoded image in response to the display dynamic range indication. An output (205) outputs an output image signal comprising the output image to the display. The transform may furthermore be performed in response to a target display reference indicative of a dynamic range of display for which the encoded image is encoded. The invention may be used to generate an improved High Dynamic Range (HDR) image from e.g. a Low Dynamic Range (LDR) image, or vice versa.

A video encoding and decoding system that implements an adaptive transfer function method internally within the codec for signal representation. A focus dynamic range representing an effective dynamic range of the human visual system may be dynamically determined for each scene, sequence, frame, or region of input video. The video data may be cropped and quantized into the bit depth of the codec according to a transfer function for encoding within the codec. The transfer function may be the same as the transfer function of the input video data or may be a transfer function internal to the codec. The encoded video data may be decoded and expanded into the dynamic range of display(s). The adaptive transfer function method enables the codec to use fewer bits for the internal representation of the signal while still representing the entire dynamic range of the signal in output.

An image processing apparatus comprises a receiver (201) for receiving an image signal comprising an encoded image. Another receiver (1701) receives a data signal from a display (107) where the data signal comprises a data field that comprises a display dynamic range indication of the display (107). The display dynamic range indication comprises at least one luminance specification for the display. A dynamic range processor (203) is arranged to generate an output image by applying a dynamic range transform to the encoded image in response to the display dynamic range indication. An output (205) outputs an output image signal comprising the output image to the display. The transform may furthermore be performed in response to a target display reference indicative of a dynamic range of display for which the encoded image is encoded. The invention may be used to generate an improved High Dynamic Range (HDR) image from e.g. a Low Dynamic Range (LDR) image, or vice versa.

Because there are currently probably more than necessary different HDR video coding methods appearing, it is expected that practical communicated HDR videos may in several future scenarios consist of a complicated mix of differently encoded HDR video segments, which may be difficult to decode unless one has our presently presented video decoder (341) arranged to decode a high dynamic range video consisting of temporally successive images, in which the video is composed of successive time segments (S1, S2) consisting of a number of temporally successive images (I1, I2) which have pixel colors, which pixel colors in different time segments are defined by having lumas corresponding to pixel luminances according to different electro-optical transfer functions (EOTF), wherein the images in some of the segments are defined according to dynamically changeable electro-optical transfer functions which are transmitted as a separate function for each temporally successive image, and wherein the images in other segments have lumas defined by a fixed electro-optical transfer function, of which the information is co-communicated in data packages (DRAM) which are transmitted less frequently than the image repetition rate, and wherein at least one of said data packages (DRAM) characterizing the electro-optical transfer function of the image pixel lumas after a moment of change (t1) between a first and a second segment is transmitted prior to the moment of change (t1); and similarly a corresponding encoder which composes the segmented video stream assuring that at least one correct package (DRAM) describing the EOTF according to which the lumas of a later video segment is coded is received by receivers before the change to a different HDR encoding method segment.

A method for: obtaining a first display interface including a plurality of elements, which includes a first background element and a first element displayed on it through superimposing; determining a target processing manner corresponding to each of the plurality of elements, which is used to adjust at least one of brightness, chrominance, and contrast of the element; processing each of the plurality of elements in the target processing manner, to obtain a rendering parameter of each element; and rendering each of the plurality of elements, to display a second display interface, wherein a second background element in the second display interface corresponds to the first background element, a second element in the second display interface corresponds to the first element, black contrast of the second element is different from that of the second background element, and brightness of the second element is greater than brightness of the second background element.

Systems and methods for intelligent display of content are disclosed herein. According to one illustrative method, a computing device camera captures an image of a face. The control circuitry determines, based on the captured image, whether at least a portion of the face is directed toward a computing device display. The control circuitry retrieves, from a memory, a rule specifying criteria for determining whether to block or permit presentation of content based on whether one or more faces are directed toward the display. The control circuitry determines, based on the rule and whether at least a portion of the face is directed toward the display, whether to block or permit the presentation of the content, and blocks or permits the presentation of the content via the computing device based on a result of the determining.

According to the present invention, there is provided an apparatus (10) for providing information, the apparatus including an acquisition unit (11) that acquires a captured image obtained by imaging the vicinity of a display; an image analysis unit (12) that detects a position on the display, which is being viewed by a person extracted from the captured image; and a control unit (13) that divides a display area of the display into multiple sub-areas, displays content on each of the multiple sub-areas, and makes a change to the displaying on the sub-area that is being viewed by the person extracted from the captured image.

A content processing system for modifying the brightness of one or more image frames of content, the system comprising a content analysis unit operable to identify brightness information for each of two or more image frames within the content, a variation detection unit operable to detect a variation in the brightness of at least two image frames within the content, and a brightness modification unit operable to modify the brightness of one or more image frames in dependence upon the detected brightness variation so as to reduce the variation in brightness between frames of the content.

A transmission method in the present disclosure includes; obtaining an image and image signal characteristics information indicating one of an opto-electrical transfer function (OETF) or an electro-optical transfer function (EOTF) as image signal characteristics of the image; and transmitting a signal including the image and the image signal characteristics information. According to the transmission method in the present disclosure, a receiving device that received a high dynamic range (HDR) image and a standard dynamic range (SDR) image transmitted through broadcasting or the like can display these images appropriately.

Provided is an information processing apparatus including an output control unit that controls output of an image performed by a display unit, the output control unit selecting an output image to be output by the display unit from among a plurality of candidate images based on calculated visibility of the candidate image. In addition, provided is an information processing method including causing a processor to control output of an image performed by a display unit, the control further including selecting an output image to be output by the display unit from among a plurality of candidate images based on the calculated visibility of the candidate image.