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| Number | Title | Issue Date |
| 5818454 | Image generation method and image generating apparatus An image generating apparatus has a command interpreting unit for interpreting external commands, an information storage unit storing information for image generation, an image selecting unit for selecting desired images from the information stored in the... | 10/06/1998 |
| 5806081 | Method and system for embedding a device profile into a document and extracting a device profile from a document in a color management system A method and system for embedding a device profile into a document and extracting a device profile from a document in a color management system. A tagged-element device profile allows for selective access to the device profile. The method of embedding a d... | 09/08/1998 |
| 5781183 | Image processing apparatus including selecting function for displayed colors Colors of plural pictures are defined by using color pallet data. Predetermined digital data are stored in a memory. The color pallet data are converted to the corresponding digital data stored in the memory. The memory contents are addressed by using an ... | 07/14/1998 |
| 5774112 | Method and apparatus for tone correction of a digital color image with preservation of the chromaticity of the image Midtone correction of RGB pixel values is provided, without changes in chromaticity, by multiplying each color component of a linear RGB representation by a single value. The single value corresponds to an adjustment of the original luminance of the pixel... | 06/30/1998 |
| 5740345 | Method and apparatus for displaying computer graphics data stored in a compressed format with an efficient color indexing system A graphics controller for use in a computer system stores information from the screen memory portion of its frame buffer in a compressed form, either in a separate compressed data memory or a portion of the frame memory separate from the screen memory. Da... | 04/14/1998 |
| 5736989 | System and method for minimizing color interpolation tables Color conversion systems and methods using an interpolation table that minimizes interpolation color value generation times and reduces memory storage of interpolation tables. A first color conversion method and system reduces interpolation table generati... | 04/07/1998 |
| 5734368 | System and method for rendering a color image An image rendering system renders a color image in which each pixel is associated with a respective aim color value. A quantizer selecta a respective quantized value indicating a color from a palette of colors for each pixel, in dependence on the aim colo... | 03/31/1998 |
| 5673065 | Color reduction and conversion using an ordinal lookup table A color image signal is reduced and converted. Dithering the remainder is an embodiment. For example a pixel value is separated into its pixel components. Each component is further split into most-significant bit (MSB) and least-significant bit (LSB) part... | 09/30/1997 |
| 5670986 | Graphics system for displaying images in gray-scale A graphics system for use with a computer in a gray-scale mode. The graphics system utilizes a lookup table having index values to be stored in a frame buffer. The lookup table is addressed by convening color information, such as RGB color information, to... | 09/23/1997 |
| 5664080 | System and method for generating a universal palette and mapping an original color space to the universal palette A system and method for generating a universal palette and for mapping the color space for an original image into the universal palette for compression. The universal palette utilizes a one byte three color format type allowing reservation of shades for a... | 09/02/1997 |
| 5642139 | PCMCIA video card Motion video may be imported into a personal or portable computer through an I/O port having a limited data bandwidth, such as a PCMCIA interface. Motion video data is compressed by sub-sampling both luminance and chrominance difference data for different... | 06/24/1997 |
| 5614925 | Method and apparatus for creating and displaying faithful color images on a computer display Faithful color images are created in an efficient manner for display on a specific computer display. A standard computer system generates a palette calibration table, based on information about a standard display. The standard computer system then creates... | 03/25/1997 |
| 5615320 | Computer-aided color selection and colorizing system using objective-based coloring criteria A computer-implemented system for selecting a color scheme and colorizing a document with the selected color scheme includes displaying a menu of user-selectable objectives which are used to define a color scheme, accessing a computerized color knowledge-... | 03/25/1997 |
| 5612717 | Video display processor having color palette and digital to analog converter on a single integrated circuit A video display processor generates display for displaying either a movable sprite or background via a display monitor or TV set operating a monitor. The video display processor includes a data port, at least one sprite register, a color palette, a color ... | 03/18/1997 |
| 5611030 | Subjectively pleasing color gamut mapping in a color computer graphics system A method is provided for use in a color computer graphics system whereby mapping constraints are relaxed and redefined so as to allow out-of-gamut colors to be mapped to in-gamut colors in a manner that is significantly more visually pleasing than in conv... | 03/11/1997 |
| 5604514 | Personal computer with combined graphics/image display system having pixel mode frame buffer interpretation Pixel-mode frame buffer interpretation is used to concurrently display graphical and image data in a common resolution. Pixel data in a frame buffer can be of varying types. A mask is stored in video memory and defines the "state" of each pixel. The pixel... | 02/18/1997 |
| 5598185 | System for analyzing medical images having a particular color and intensity look-up table A procedure and device for analyzing the gray scale of mammograms. Mammogram images are digitized and subject to image enhancement by manipulating the gray scale. Each pixel of the digitized mammogram is grouped as to a gray scale interval and those pixel... | 01/28/1997 |
| 5598186 | System and method for image mapping in linear space Red, green and blue pixels of a digitized image are combined to form a single vector that points to three lookup tables translating each pixel to linear Y, I, Q values thereby forming a linear image. The color value of each pixel in the linear image, comp... | 01/28/1997 |
| 5586236 | Universal color look up table and method of generation A system and method for managing the color palette for an object oriented operating system providing for the sharing of a plurality (e.g., 256) of colors for display by an external device. In a first aspect, an 8-bit color lookup table (CLUT) is shared by... | 12/17/1996 |
| 5579031 | Color matching method and apparatus A process and related apparatus for producing at least two matched color displays of a digital image using two different display devices, comprising using an adaptor to convert the digital information representing the image to digital information such tha... | 11/26/1996 |
| 5535315 | Graphic coloring system in a graphic-display system having separately stored shape/positional data and color data selectively combinable to form desired images of differing shapes and colors A graphic display system has a display unit, a main memory for storing graphic data and a controller for controlling the processing and transferring of data between the display unit and the main memory. The main memory includes a correspondence table of l... | 07/09/1996 |
| 5528741 | Method and apparatus for converting floating-point pixel values to byte pixel values by table lookup Method and apparatus for generating integer pixel values from floating point values using table lookup. The method includes the steps of (a) providing a floating-point representation of a pixel value; and (b) applying the floating-point representation as ... | 06/18/1996 |
| 5515077 | Image processing system Image data are defined by color vectors each composed of vector factors. Each vector factor specifies the brightness and color difference of a dot. The image data are transmitted with a normal timing when the vector factors correspond to dots of the image... | 05/07/1996 |
| 5502458 | Method and apparatus for creating and displaying faithfull color images on a computer display Faithful color images are created in an efficient manner for display on a specific computer display. A standard computer system generates a palette calibration table, based on information about a standard display. The standard computer system then creates... | 03/26/1996 |
| 5488568 | Playback method and system for processing image data A method and system for processing an image. The system stores and decodes encoded image data. Before decoding, the image data has an OPERATING SYSTEM header, a BITSTREAM header, a Y-COMPONENT DATA field, a U-COMPONENT DATA field, and a V-COMPONENT DATA f... | 01/30/1996 |
| 5473737 | Method and apparatus for displaying a composite image made up of a foreground image and a background image This invention solves the problem of displaying two images simultaneously in the same screen space, with rapid alteration of the transparency of the foreground image with respect to the background image, without using multiple image planes. This invention... | 12/05/1995 |
| 5473738 | Interactive color harmonizing methods and systems A substantially universal range of color standards over the visible spectrum is displayed for visual observation, comparison with extraneous colors and for interactive color processing in a color computer processing system. In the comprehensive set, stand... | 12/05/1995 |
| 5473736 | Method and apparatus for ordering and remapping colors in images of real two- and three-dimensional objects A color palette mapped to an image obtained by any known process is decomposed to separate contrast components from hue/saturation pairs, then only the hue/saturation pairs are remapped to a new set of hue/saturation parameters according to available mapp... | 12/05/1995 |
| 5459824 | Navigation apparatus capable of changing color scheme of a displayed picture A plurality of preset palette data are stored in a ROM. User palette data are input through an RS232C interface and stored in a nonvolatile RAM. Based on an instruction from a user and other information such as a signal indicating the status of an illumin... | 10/17/1995 |
| 5459486 | Method and apparatus for combining palettes of color quantized images A color-mapped display sub,stem efficiently combines palettes of multiple images into a single shared palette. As each image already received a degree of distortion during conventional palette selection, it is desirable to minimize further distortion duri... | 10/17/1995 |
| 5438652 | Display control apparatus for converting color/monochromatic CRT gradation into flat panel gradation A display control apparatus in a system which is equipped with a plasma display unit as a standard I/O device and which can arbitrarily be connected to a monochromatic or color CRT display unit, includes a CRT palette in which gradation or color data is s... | 08/01/1995 |
| 5434957 | Method and apparatus for generating a color palette A method for generating a color palette from elements having multiple color component values including the steps of determining a color proximity of the elements by organizing the elements by a most significant bit of each element color component value fo... | 07/18/1995 |
| 5404427 | Video signal processing with added probabilistic dither A system in which a characteristic of individual picture points is provided to an accuracy of m binary bits but conveyed by n bits, where n is less than m. The value of a lower order bit of the n bit signal is switched to cause said binary value to repres... | 04/04/1995 |
| 5394519 | Data processing apparatus for high resolution display in multiple virtual dos applications A color video system includes a palette data register for storing triplets of color data that control the colors of pixels. The triplets are stored at indexed locations accessed by an autoincrementing index register. When an application is switched from t... | 02/28/1995 |
| 5394518 | Luminance sensitive palette A custom palette comprises colors on a plurality of luminance levels consisting of colors of uniform luminance. The spacing in luminance between levels varies in relation to the luminance, the spacing between levels being closer at low luminance and incre... | 02/28/1995 |
| 5390293 | Information processing equipment capable of multicolor display An information processing equipment capable of multicolor display, comprising a CPU; a display memory which stores display information therein; a display unit which displays the display information in multiple colors selected from a predetermined number o... | 02/14/1995 |
| 5384902 | Method for generating a fast inverse table A large set of image data values are associated with a smaller set of values, such as color palette look-up table (LUT) indices, to create an inverse table. The larger set of image data values address into the inverse table. The inverse table is simulated... | 01/24/1995 |
| 5359705 | Method of displaying composite satellite imagery The method of this invention simulates a 16-bit color composite satellite picture upon an 8-bit color display system, a simulated picture being of substantially equal quality as a 16-bit picture, a simulated picture can be placed on a personal computer sy... | 10/25/1994 |
| 5347621 | Method and apparatus for processing image data Image data is processed by dividing an entire screen into a predetermined number of unitary blocks of pixels, then storing data of the divided screen blocks from an image data recording medium into memories, and processing the data for displaying the imag... | 09/13/1994 |
| 5341470 | Computer graphics systems, palette devices and methods for shift clock pulse insertion during blanking A computer graphics system. The system includes a video memory having a shift register adapted for split shift register transfers, and digital computer for controlling the video memory and having a tap point counter clocked by a shift clock signal and als... | 08/23/1994 |
