Abstract: In accordance with the teachings of the present disclosure, a system and method for displaying an image are provided. In one embodiment, the method includes receiving a data stream representing a frame of an image. The data stream may indicate a first color pixel cluster corresponding to a first color and a second color pixel cluster corresponding to a second color. The first color pixel cluster and the second color pixel cluster may be displayed. The first color pixel cluster may be different from the second color pixel cluster.

Abstract: An imaging device collects color image data to facilitate distinguishing crop image data from background data. A definer defines a series of scan line segments generally perpendicular to a transverse axis of the vehicle or of the imaging device. An intensity evaluator determines scan line intensity data for each of the scan line segments. An alignment detector identifies a preferential heading of the vehicle that is generally aligned with respect to a crop feature, associated with the crop image data, based on the determined scan line intensity meeting or exceeding a maximum value or minimum threshold value. A reliability estimator estimates a reliability of the vehicle heading based on compliance with an intensity level criteria associated with one or more crop rows.

Abstract: A spectral printing model converter is used to convert ink amount data to spectral reflectance of a color patch to be printed according to the ink amount data. A plurality of sample ink amount data each representing a set of ink amounts of plural inks is provided, and each sample ink amount data is converted into spectral reflectance of a virtual sample patch to be printed with the ink amounts represented by the sample ink amount data using the spectral printing model converter. An evaluation index is calculated for each sample ink amount data, where the evaluation index includes a color difference index and an image quality index of the virtual sample patch to be printed according to the sample ink amount data. The color difference index represents a color difference between a sample color which is calculated from the spectral reflectance and a comparative color which is selected as a basis for comparison.

Abstract: A method of operating spatial sampling filters comprises detecting subpixel rendered areas, turning on a first set of spatial sampling filters for the subpixel rendered areas in response to detecting said subpixel rendered areas, detecting non-subpixel rendered areas; and turning on a second set of spatial sampling filters for the non-subpixel rendered areas in response to detecting the non-subpixel rendered areas.

Abstract: A method for dithering an image is disclosed, which includes: storing a plurality of dithering parameters corresponding to a predetermined function for a predetermined input intensity range; and dithering pixels of the predetermined input intensity range according to the plurality of dithering parameters.

Abstract: A method is disclosed. The method includes receiving a first polygon, receiving a second polygon, calculating a vector joining a centroid of the first polygon and a centroid of the second polygon, retrieving vertices of each polygon that are farthest from the other polygon in the direction of the vector towards the other polygon, performing a view frustrum from each vertex retrieved for the first polygon to the centroid of the first polygon, performing a clipping operation on the second polygon and determining if the second polygon intersects the view frustrum of one or more of the vertices of the first polygon.

Abstract: A method for display compositing is disclosed. The method generally includes the steps of (A) generating a plurality of respective color values and a plurality of respective blending values for a plurality of graphics pixels to be blended with a display picture, (B) examining in a sequence a plurality of neighboring pixels of the graphics pixels adjoining a current pixel of the graphics pixels, the current pixel having a current color value of the respective color values and a current blending value of the respective blending values and (C) replacing the current color value with the respective color value for a particular pixel of the neighboring pixels where (i) the respective blending value for the particular pixel comprises one of a plurality of non-transparent values and (ii) the current blending value comprises one of at least one transparent value.

Abstract: Embodiments of the present invention comprise methods and systems for adaptive dither pattern array generation and application.

Abstract: A method and apparatus for generating hierarchical depth culling characteristics includes determining a first minimum depth value and a first maximum depth value for a first graphical element. The graphical element may be a primitive. The first minimum depth value may be a minimum Z-plane depth of a pixel within the primitive and a first maximum depth value is a maximum Z-plane value for a pixel within the primitive. The method and apparatus further includes determining a second minimum depth value and a second maximum depth value for a second graphical element, which may be a tile. The method and apparatus further includes calculating an intersection depth range having an intersection minimum depth value and an intersection maximum depth value based on the intersection of the first minimum depth value and the first maximum depth value and the second minimum depth value and the second maximum depth value.

Abstract: A method of rendering a graphical image described by an expression tree is disclosed. The expression tree has one or more parent nodes and one or more leaf nodes, with each parent node representing a graphical operator and having branches to respective descendent nodes. Each of the leaf nodes represents a graphic object. The method determines regions of one or more pixel locations in an output space of the image, with each region corresponding to a combination in the image of one or more of the graphical objects. Next, for each of the regions, an activity state of corresponding parent nodes is determined using a predefined function for each corresponding operator. The method then generates, in parallel, for each active one of the operators, compositing instructions and pixel generation instructions. The compositing instructions are stored in an operator queue and pixel colors are generated using the pixel generation instructions, with the pixel colors being buffered in an operand queue.

Abstract: Methods and computer readable media for generating displays of user-defined blocks of networking addresses on a map of an associated address space are provided. Each block of networking addresses is described in a user-defined table with a start address and a map size. The display for each block of network addresses may be rendered on the map at a location based on the relative position of the start address within the associated address space and of a size based on the mask size in relation to the associated address space.

Abstract: A facial image photographed by a digital camera is downloaded to a PC. When a facial image correction program starts, a correction window and a correction item selection window open on a monitor. When a user opens the facial image in the correction window, a pixel extraction circuit extracts pixels representing a skin area, an eye area, a teeth area, and a hair area from the facial image. Correction items to be performed are determined in the correction item selection window. A cursor position detection circuit detects the position of a cursor in the correction window. When the cursor is in one of the areas, a facial image correction circuit judges whether the correction item corresponding to the area is selected. If the corresponding correction item is selected, the facial image correction circuit subjects a pixel pointed by the cursor to predetermined correction processing.

Abstract: A vehicle navigation apparatus is provided which can reliably guide a vehicle along a guidance route when the vehicle approaches an intersection of interest at which it is to make a turn even if another intersection exists between a vehicle position and the intersection of interest. A controller determines whether or not another intersection exists between the vehicle position and the next guidance intersection (an intersection at which the vehicle is to make a turn) when the vehicle reaches a predetermined distance from the guidance intersection. If another intersection is determined to exist, an intersection guidance map with an arrow indicative of the guidance route colored in a predetermined color is displayed on a display device. In one embodiment, if another intersection does not exist between the vehicle and the guidance intersection, the color of the arrow displayed is changed to a different color.

Abstract: A system and method for processing a gray level in a display device performs a random error diffusion operation on the video data using a first random coefficient value and a random dithering operation on the error-diffused video data using a second random coefficient value.

Abstract: In a method for determining weighting factors for the color calculation of a color value of texels for a footprint covering a plurality of texels in a texel grid, in a graphic system, form information of the footprint is determined at first. Afterwards, the edges of the footprint are determined and the edges determined in this way are approximated by a staircase function. The texels of the texel grid contacted by the staircase function are determined and a weighting factor is determined for each texel containing a portion of the staircase function, depending on the subarea of the respective texel covered by the footprint.

Abstract: A drawing instruction processor refers to a bit map line table that shows whether the bit arrays in the row unit are the same in the order of concentrations. The drawing instruction processor decides whether dither patterns to be used for the adjacent specified drawing ranges are the same, by referring to the BLT, and links the drawing ranges to which the same pattern can be applied. Based on this, the drawing processor carries out a batch writing using a dither pattern prepared in advance into the specified range in the page memory. The dither pattern to be used for the drawing is prepared by linking a plurality of the same basic patterns to have a length corresponding to the length of the word length. As a result of such an arrangement, it is possible to achieve a high-speed processing.

Abstract: A method of displaying an image with a display device having a set of defective display pixels includes receiving image data for the image. The method includes generating a first sub-frame and a second sub-frame corresponding to the image data. The method includes selecting a first position and a second position spatially offset from the first position, the first and the second positions selected based on positions of the defective display pixels and characteristics of a human visual system. The method includes alternating between displaying the first sub-frame in the first position and displaying the second sub-frame in the second position.

Abstract: A method of rendering a plurality of graphical objects of an image on a scanline basis, with each scanline having at least one run of pixels, and each run of pixels being associated with at least one of the graphical objects such that the pixels of the run are within edges of the at least one graphical object, includes the steps of decomposing each of the graphical objects into at least one edge representing the corresponding graphical object, and sorting one or more arrays containing the edges representing the graphical objects of the image. At least one of the arrays is sorted in an order from a highest priority graphical object to a lowest priority graphical object.

Abstract: A color display having horizontal sub-pixel arrangements and layouts is disclosed. The display can include a plurality of a sub-pixel group. The sub-pixel group can have a plurality of sub-pixels wherein each sub-pixel has a height along a vertical axis and a width along a horizontal axis. The width of each sub-pixel is greater in length than its height in the sub-pixel group. The display also includes a column driver coupled to each sub-pixel in a column and a row driver coupled to each sub-pixel in a row of the sub-pixel group. Each sub-pixel in the sub-pixel group is coupled to the row driver along the width of the sub-pixel.

Abstract: A three-color pixel element for a display comprises a blue emitter disposed at the origin of a rectangular coordinate system having four quadrants, a pair of red emitters and a pair of green emitters spaced apart from the blue emitter and symmetrically disposed about the origin of the rectangular coordinate system in a first and second pair of opposing quadrants.

Abstract: Power consumption in a portable computer device that provides true-color simulation on a liquid crystal display can be realized by selectively operating a graphics controller that drives the LCD to selectively enable or disable true color simulation. Disabling dithering which provides true color simulation in an LCD, can significantly reduce power consumption by a portable computer device.

Abstract: A method for processing a digital signal to enhance the resolution is disclosed. An embodiment provides for a method of processing an image for display on a display having sub-pixel display capability. The method first maps a plurality sub-pixels of the display to corresponding regions of the image. Each sub-pixel may be mapped to a unique region of the image. Next, the method accesses the image, which was sampled to have a higher spatial resolution than the spatial resolution of the display. Then, for each sub-pixel of the display, the method calculates an intensity value for one color of a plurality of colors in the image. The calculation may be based on the intensity of that color alone. Finally, the method causes the sub-pixels on the output display to display the colors in proportion to the calculated intensities.

Abstract: The gamma adjustment allows the luminance for the sub-pixel arrangement to match the non-linear gamma response of the human eye's luminance channel, while the chrominance can match the linear response of the human eye's chrominance channels. The gamma correction allows the algorithms to operate independently of the actual gamma of a display device. The sub-pixel rendering techniques disclosed with gamma adjustment can be optimized for a display device gamma to improve response time, dot inversion balance, and contrast because gamma correction and compensation of the sub-pixel rendering algorithm provides the desired gamma through sub-pixel rendering. These techniques can adhere to any specified gamma transfer curve.

Abstract: Aspects of the invention provide an image-display apparatus including an image display, such as a liquid-crystal display panel, where the image display can display a limited number of gray scales, interpolation is performed so that the number of gray scales displayed by the image display becomes the same as that of gray scales of obtained image data. The image-display apparatus can have the liquid-crystal display panel or the like and can be mounted on a mobile phone, a PDA, and so forth, so as to process and display image data transmitted from outside sources. First, a CPU performs a bit-slice process for the obtained image data, so as to reduce the data amount thereof. Next, a dither processing unit performs a dither process for interpolating the reduced data amount, so as to represent half-tone gray scales simulatively.

Abstract: A system and process for generating a two-layer, 3D representation of a digital or digitized image from the image and a pixel disparity map of the image is presented. The two layer representation includes a main layer having pixels exhibiting background colors and background disparities associated with correspondingly located pixels of depth discontinuity areas in the image, as well as pixels exhibiting colors and disparities associated with correspondingly located pixels of the image not found in these depth discontinuity areas. The other layer is a boundary layer made up of pixels exhibiting foreground colors, foreground disparities and alpha values associated with the correspondingly located pixels of the depth discontinuity areas. The depth discontinuity areas correspond to prescribed sized areas surrounding depth discontinuities found in the image using a disparity map thereof.

Abstract: A method for improving compatibility between an application program and a display device of a computer system includes: providing a first format in a first frame buffer, the first format compatible with a format for an application program, providing a second format in a second frame buffer, the second format compatible with a format for an output device, and transforming inputs from the application program from the first format in the first frame buffer to the second format in the second frame buffer for output on the output device. With the present invention, new formats can be developed to reduce costs and improve performance with transparent compatibility for programs developed to correspond with old formats. Thus, improved flexibility for supporting a variety of formats developed for differing memory depths, differing resolutions, and differing color formats is realized.

Abstract: A RGB to YUV conversion is presented that provides separate lumina and chroma filtering to produce the Y data block, and the U and V data blocks. Lumina filter interpolation is performed with, for example, a 5-tap filter while chroma filtering interpolation is performed with, for example, a 7-tap filter. The filtering arrangements take advantage of the eye's higher visual sensitivity to spatial variation compared to color variation.

Abstract: A color image is produced from image data. Color image bit-planes are generated from the image data. Each color image bit-plane represents a time increment for displaying one color of a plurality of colors for each pixel of the color image. For each of the colors, color patterns are displayed in a plurality of image sub-frame locations. The color patterns represent the color image bit-planes. At least the least significant color image bit-planes are displayed in less than all of the image sub-frame locations.

Abstract: When displaying an image with at least four primary colors mixed, there are provided a primary color B generating unit (1036) having, as an xy chromaticity, (x, y)=(0.150, 0.060) and generating a primary color B lowest in luminance, a primary color G generating unit (1038) having, as an xy chromaticity, (x, y)=(0.300, 0.600) and generating a primary color G highest in luminance, and a primary color R generating unit (1037) having, as an xy chromaticity, (x, y)=(0.640, 0.330) and generating a primary color R higher in luminance than the primary color B and lower in luminance than the primary color G, whereby it is possible to expand a color gamut while ensuring compatibility with 3-primary-color image signal by allowing three primary colors to agree with the primary color Rec. 709 of a standard display sRGB.

Abstract: A method of displaying an image with a display device includes receiving image data for the image. A first sub-frame and a second sub-frame corresponding to the image data are generated. The first and the second sub-frames are generated based on minimization of an error between the image data and a simulated image. The method includes alternating between displaying the first sub-frame in a first position and displaying the second sub-frame in a second position spatially offset from the first position.

Abstract: Embodiments of the present invention comprise methods and systems for adaptive dither pattern array generation and application.

Abstract: A graphics processor performed gamma correction of the coverage values of pixels. In one embodiment, a gamma correction factor is written into a run-time loadable lookup table of the graphics processor. The gamma corrected coverage values may be used in an anti-aliasing process to form smoothed primitives.

Abstract: A method and system for displaying an image, includes steps and means for: storing image data in a manner that enables retrieval of different spatial regions of an image at different fidelities; determining an viewer's point of gaze on a display; retrieving image data for each spatial region of an image at a fidelity that is a decreasing function of the distance of the regions from the point of gaze; and displaying the retrieved image data on the display.

Abstract: Methods and apparatus implementing techniques for identifying, in a device space, an effective centerscan object color along an edge between an overscan object and a centerscan object, the overscan object having a higher paint order than the centerscan object. The edge is mapped to the device space. A set of overscan boundary pixels is identified in the device space, the overscan boundary pixels being device space pixels that are intersected by the edge. A vector pointing in a direction of the centerscan object relative to the edge is created. The vector is applied to each overscan boundary pixel in the set of overscan boundary pixels to identify a corresponding set of centerscan boundary pixels in the device space. Each centerscan boundary pixel is mapped to the centerscan object to identify a color of the centerscan boundary pixel. A corresponding method for reversed paint order is also described.

Abstract: Methods, devices and systems for overflow error diffusion in image processing are provided. A method includes calculating error values, em, corresponding to differences between modified intensity values for a number of pixel locations and one or more threshold values, where em represents an error value associated with an mth pixel. The method further includes diffusing a calculated overflow error value associated with each calculated error value, em, to at least one pixel neighbor of the mth pixel location.

Abstract: A method and apparatus for measuring a color-texture distance and a method and apparatus for sectioning an image into a plurality of regions using the measured color-texture distance are provided.

Abstract: A color image is produced from image data. Color image bit-planes are generated from the image data. Each color image bit-plane represents a time increment for displaying one color of a plurality of colors for each pixel of the color image. For each of the colors, color patterns are displayed in a plurality of image sub-frame locations. The color patterns represent the color image bit-planes. At least the least significant color image bit-planes are displayed in less than all of the image sub-frame locations.

Abstract: The present invention is directed to a method of discriminating between textual content and graphical content. The method includes the steps of receiving a plurality of pixel values for a pixel line segment, calculating a plurality of spatial gradients based on the pixel values of adjacent pixels, determining a smoothness index by processing the plurality of spatial gradients, and identifying the pixel line segment as text or graphics by comparing the smoothness index to a threshold value.

Abstract: A system and process for generating a two-layer, 3D representation of a digital or digitized image from the image and a pixel disparity map of the image is presented. The two layer representation includes a main layer having pixels exhibiting background colors and background disparities associated with correspondingly located pixels of depth discontinuity areas in the image, as well as pixels exhibiting colors and disparities associated with correspondingly located pixels of the image not found in these depth discontinuity areas. The other layer is a boundary layer made up of pixels exhibiting foreground colors, foreground disparities and alpha values associated with the correspondingly located pixels of the depth discontinuity areas. The depth discontinuity areas correspond to prescribed sized areas surrounding depth discontinuities found in the image using a disparity map thereof.

Abstract: A method and system for displaying an image, includes steps and means for: storing image data in a manner that enables retrieval of different spatial regions of an image at different fidelities; determining an viewer's point of gaze on a display; retrieving image data for each spatial region of an image at a fidelity that is a decreasing function of the distance of the regions from the point of gaze; and displaying the retrieved image data on the display.

Abstract: A method is for producing the bump mapping effect for a 3D object in a computer graphic. First, a shading vector is produced at one point of the surface of the 3D object. A shift coordinate with respect to this point is determined, according to the shading vector. According to the shift coordinate, a rotational calculation matrix is set up. Then, a diffuse color value with respect to this point is computed, which is equal to the difference between an adjacent rotation color value to this point and an averaged color value, wherein the averaged color value is defined as the sum and average of the color channels for R, G, and B with respect to this point, and the adjacent rotation color value is defined as a sum of the averaged color value with respect to a number of the adjacent points and the coefficient product with respect to the adjacent points in the rotational calculation matrix. Then, the emboss image value at this point is computed.

Abstract: A texture picture with a highest resolution is selected among a plurality of pictures taken from different points of view for each patch surface, and texture mapping is carried out by pasting a texture picture selected for a patch surface on the patch surface. Then, processing is carried out to correct differences in concentration, which are caused by differences in beam-source condition, between pictures or between patch surfaces. As the correction processing, inter-frame picture-concentration-value correction, inter-patch texture-picture-shift correction and inter-patch boundary concentration smoothing correction are performed to allow texture mapping with a high picture quality to be carried out to produce a three-dimensional picture having a high quality. It is thus possible to provide a texture mapping technique capable of producing a three-dimensional picture having a high picture quality.

Abstract: An apparatus for processing image signals in a monitor system having an LCD module is enclosed. The apparatus includes an A/D converter converting analog R/G/B input image signals received into first 8-bit digital R/G/B image signals; a microprocessor determining whether a resolution of the input image signals is supported by the LCD module and generating a corresponding control signal, the resolution being determined using a horizontal/vertical sync signal received; an image converter converting the first 8-bit digital R/G/B image signals into second 8-bit digital R/G/B image signals based on the control signal if the resolution of the input signals is not supported by the LCD module, the second 8-bit digital R/G/B image signals being displayable on the LCD module; a scaler adjusting frame sizes of the first or second 8-bit digital R/G/B image signals; and a switch outputting the first 8-bit digital R/G/B image signals to the scaler or the image converter depending on the control signal.

Abstract: A preferred method includes the step of receiving multiple digital video data streams. Preferably, a first of the multiple digital video data streams contains processed pixel data corresponding to at least a portion of the image to be rendered, and a second of the multiple digital video data streams contains processed pixel data corresponding to at least a portion of the image to be rendered as well as information, such as a chroma-key value, associated with at least some of the processed pixel data. The embodiment also preferably includes the step of combining the multiple digital video data streams into the composite digital video data stream by referencing the chroma-key values. Devices also are provided.

Abstract: A method to use most of the colors that are available when rendering color images where a limited number of colors are available such as rendering images in VGA mode. The instant invention determines the maximum value of the color intensity values of a true color to display at a given (x, y) position. The number of full intensity values and half intensity values are determined and the number of half intensity color values are maximized. A halftone matrix is used and a halftone value is chosen from the halftone matrix using a modulo function. The color to be used at the (x, y) position is then selected based upon the full intensity values and the halftone value.

Abstract: Provided are a color display driving principle obtained while taking into account a difference in eye sensitivity to the flickering of differently colored lights, a TFT liquid crystal display module structure that is adequate for this method, and a double-panel projection type display device. The count of the G (green) color data that can be written is increased compared with the count for the other primary colors, or the display period for green can be extended. The repetitive unit is set to R, G, B and G, so that a satisfactory refresh rate can be set for the important color G. Therefore, the overall refresh frequency and the power consumed by the display device can be reduced without deterioration of the display quality, and requests for the time response speeds by the display device can be reduced.

Abstract: A method and system for displaying an image, includes steps and means for: storing image data in a manner that enables retrieval of different spatial regions of an image at different fidelities; determining an viewer's point of gaze on a display; retrieving image data for each spatial region of an image at a fidelity that is a decreasing function of the distance of the regions from the point of gaze; and displaying the retrieved image data on the display;

Abstract: The present invention relates to a display device that has a good-quality image display while suppressing dither patterns which arise upon the execution of dither processing. The values of dither coefficients allocated to the display cells which emit at least one color within pixels are made different from the values of dither coefficients allocated to other display cells which emit another color within the pixels.

Abstract: An image dithering device processing in both time domain and space domain to improve the image quality of an LCD digital display is disclosed. The device comprises a Gamma Table for performing Gamma processing on input signals; a counter module for generating a row counting value and a column counting value by counting the vertical synchronizing signal, horizontal synchronizing signal, and image pixel clock of the LCD image control system; a dithering value generating module for providing a dithering value for each pixel according to the row counting value and the column counting value, the dithering value generating module having a matrix with different value; and a calculation module for performing calculation on the value output form the Gamma Table and the dithering value for decreasing the bits of the input image value so as to fit the input data bits of the LCD display.

Abstract: A method of halftoning input image data intended for reproduction on a display (114) having a plurality of pixels (23-27) and a limited pixel response time (see FIG. 1) is disclosed. In a first halftone cycle (K=n), the method comprises (first) halftoning an input value (30) to display an extreme representable (100% or 0%). In a second halftone cycle (K=n+1), (second) halftoning the input value (30) to display an intermediate value such that the average of the extreme representable value and the intermediate value is substantially equal to the input value.