37 results about "Indexed color" patented technology

A calculation unit (58) references texture data (62) in a storage unit (60) and acquires texel information of index color formal An integral look-up table (64) has a structure containing a plurality of color look-up tables based on the detail degree (LOD) of the area to be plotted A look-up table reference unit (70) selectively references the color look-up table based on the LOD stored in the integral look-up table (64) according to the LOD value of the texel obtained by the LOD calculation unit (68), acquires color information corresponding to the index value of the texel, and outputs it to the calculation unit (58). The calculation unit (58) performs filter processing such as bi-linear interpolation according to the texel color information and outputs the texel information after the processing.

Methods and systems in an image processing device for controlling colors that are located external to a gamut are disclosed. A plurality of color values can be automatically provided as input to said image processing device, wherein said image processing device is under a control of a particular dimensional order, typically a three-dimensional order, but alternatively can be a two-dimensional order. Next, an operation can be performed dynamically determining which color value among the plurality of color values has attained a gamut limit. Thereafter, the particular dimensional order can be automatically reduced, thereby providing improved control for colors that are located external to said gamut. The plurality of color values analyzed is generally associated with three colors—cyan, magenta, and yellow.

A single source image encoder encodes more than one display stream, such as multiple display streams each for a different display or multiple display streams for the same display, using multiple index color history (ICH) buffers. As applied to a DSC encoder, the same DSC encoder is used to encode more than one DSC compliant display stream. Multiple encoded display bitstreams are output as multiple display data streams to a plurality of displays. Such a configuration can significantly reduce the area cost of an integrated circuit that employs an image encoder since additional encoders are eliminated.

A method for combining image based on image format of index color includes making histogram statistics on color of source image and judging whether color number in histogram is less than M or not, using color in histogram as palette for synthetic image and selecting color with minimum color difference in palette used for synthetic image as pixel in each synthetic image as well as using index valueof selected color to realize image combination if it is or otherwise selecting m numbers of colors in histogram and utilizing M-m numbers of colors as palette of synthetic image commonly.

An inspection apparatus includes circuitry to acquire a first scanned image by scanning each recording media printed with a target image, acquire a second scanned image by scanning one recording medium printed with a color chart including a plurality of color patches, generate index color information including information of index colors having higher frequency of occurrence on the one recording medium for each of the color patches, generate color conversion information by associating each of the color patches and each of the index colors, generate a reference image for each of the index colors by performing a color conversion of the target image by applying the color conversion information, calculate a difference of a color value of each pixel configuring the first scanned image and a color value of each pixel of each of reference images, and inspect the printed matter based on a plurality of color difference values.

A method and system of determining the screen capability and rendering the appropriate display attribute is herein described. The present invention performs this task by using a color table, which contains a list of object types and a corresponding list of display attributes. The application program obtains the correct display attribute for the object by calling the color table, giving it an identifier of the object. The color table is indexed by the identifier of the object and a screen capability flag that is obtained, in one embodiment, from the operating system. The color table provides the display attribute for the specified object based on the screen capability flag. Advantageously, the application program does not need to know the computer's display capability. Furthermore, the application program needs only one piece of computer code, regardless of the number of display capabilities which are possible. Thus, memory space in the palmtop is conserved. In another embodiment of the present invention, the application program is allowed to modify the default values of the display attributes in the color table. Thus, an application program could use its own color to display an object if the default color is undesirable.

The present invention provides an image processing device capable of realizing appropriate color expression without requiring a large increase in data amount of image data for displaying a composite screen. A television broadcast receiver (1) includes a synthesis processing section (40) and an OSD processing section (24) for creating an OSD plane C as a composite screen in index color expression by combining an OSD plane U and OSD plane L, which are display screens in the index color expression. By the processing section (40) and the OSD processing section (24), the OSD plane C for attaining a display effect in which the OSD plane U and OSD plane L are superimposed is created.