Abstract: An apparatus, method, and computer program product for manipulating an edge in an image. The method includes selecting a portion of the image in response to user manipulation of a brush having two or more regions, the portion including an edge; orienting the brush so that a first region lies on a first side of the edge and a second region lies on a second side of the edge; performing a first effect in the portion of the image covered by the first region; and performing a second effect in the portion of the image covered by the second region. The edge can be an edge of a mask. The image can include a mask channel defining the mask, and the method can include performing the first and second effects on the mask channel. The first side of the extraction mask edge is of greater opacity than the second side of the extraction mask edge, and the method includes increasing the opacity of the mask in the first region and decreasing the opacity of the mask in the second region.

Abstract: A method and apparatus for enhanced image display that substantially eliminates video image fragments include processing that begins by monitoring color data of an image to be displayed. The processing then continues by determining whether at least a portion of the image includes color data that matches a chroma key color. When at least a portion of the image includes color data that matches the chroma key color, the processing continues by adjusting the color of at least a portion of the image to produce adjusted color data such that the adjusted color data does not match the chroma key color.

Abstract: The present invention provides a method for creating amorphous patterns based on a constrained Voronoi tesselation of 2-space that can be tiled. There are three basic steps required to generate a constrained Voronoi tesselation of 2-space: 1) nucleation point placement; 2) Delauney triangulation of the nucleation points; and 3) polygon extraction from the Delauney triangulated space. The tiling feature is accomplished by modifying only the nucleation point portion of the algorithm.

Abstract: An apparatus and method is provided for dynamically modifying both the luminance and contrast of an image as it is displayed on a display unit in response to changing lighting conditions. Sensors are utilized to continually measure the luminance of the light illuminating the display unit and the display surround luminance. Measurement signals generated by the light sensors are processed to provide display luminance and contrast adjustment control signals that gradually cause the adjustment of the display unit's luminance and contrast in response thereto. Continual adjustment of the luminance and contrast of a display unit according to changing lighting conditions such that the brightness and contrast perception of the displayed image remains constant under the varying conditions.

Abstract: In order to store texture images in a smaller data amount, there is provided a method for recording a texture recording image 28 which contains a number of texture images in a memory to thereby record the images of the number of texture in the memory. In this method, the texture images are arranged on the texture recording image 28 based on the shape information of each texture such that a region not being occupied by the images can be reduced on the texture recording image 28.

Abstract: Apparatus comprising a logic member and a shear member incorporating an upsampler are used to enlarge the number of pixels in at least one image dimension by a factor F=N/M, where N is a first given-valued integer, M is a second given-valued integer and 1<N/M≦2. The shear member shears the original image at certain positions of the one dimension that are determined solely by the value of factor F, thereby introducing zero-valued shear-gap pixels at each of the certain positions.

Abstract: A graphical object in an object-oriented environment is comprised of a plurality of child graphical objects. The parent graphical object and each of the child graphical objects have a property corresponding to the orientation of a representation of the respective object. A connection tree is formed from the parent graphical object which has the initial values of each property of the child graphical objects. During operation, the value of the property of the graphical object may be altered corresponding to a change in the position of the object's graphical representation. The altered value is broadcast through the connection tree to allow recalculation of each child object's property based upon its initial value so that the parent object and its child objects can be graphically displayed based on the changed position.

Abstract: The present invention provides a method and apparatus for generating three-dimensional bar charts by interspersing non-rectangular shapes amongst rectangular boxes so that the rectangular boxes and non-rectangular shapes tend not to obscure each other. To this end, one embodiment of the present invention provides a method that operates by receiving a set of data values to be displayed in the three-dimensional bar chart. The set of data values is divided into two subsets. A first subset is represented by rectangular boxes projecting from a two-dimensional grid, so that a height of a given box above the two-dimensional grid bears a functional relationship to a data value being displayed by the given box. A second subset is represented by non-rectangular shapes projecting from the two-dimensional grid, which are interspersed between the rectangular boxes, so that a height of a given non-rectangular shape bears a functional relationship to a data value being displayed by the given non-rectangular shape.

Abstract: An active-matrix display device includes rows of gate lines, columns of signal lines, and a matrix of liquid-crystal pixels provided in the region where the gate lines and the signal lines intersect. Vertical scanners sequentially scan each gate line during one vertical period, and select one row of liquid-crystal pixels. A horizontal scanner samples video signal for each signal line, and writes the video signal in the one row of liquid-crystal pixels selected within one horizontal period. A voltage applying means applies to each signal line a voltage equal to or less than the minimum level of the video signal in one horizontal period excluding a time assigned for writing the video signal in one row of liquid-crystal pixels. The repeated application of the voltage during one vertical period approximately equalizes signal leakages from all the pixels, whereby vertical crosstalk can be suppressed.

Abstract: Disclosed are a plasma display capable of preventing deterioration of display contrast deriving from priming discharge, and of minimizing a power consumption, and a driving method therefor. The plasma display comprises: a plasma display panel in which first, second, and third electrodes are arranged alternately parallel to one another on a first substrate, and fourth electrodes are arranged orthogonally to the first electrodes on the first substrate or a second substrate; a first electrode selection driver for selectively driving the first electrodes; a second electrode driver for driving the second electrodes, and a third electrode driver for driving the third electrodes. First display cells are formed at intersections between the first electrodes and second electrodes and the fourth electrodes, and second display cells are formed at intersections between the first electrodes and third electrodes and the fourth electrodes.

Abstract: A color image signal generator is provided for generating red, green and blue analog image signals based on first red, green and blue image data and on first brightness data. Each of the first red, green and blue image data has a predetermined first bit number, while the first brightness data has a predetermined second bit number. The color image signal generator includes a brightness data modifier for providing second brightness data based on the first brightness data, so that the second brightness data has a predetermined third bit number which is greater than the second bit number. The color image signal generator also includes a data multiplier arranged to multiply the second brightness data with the first red, green and blue image data. As a result of multiplication, second red, green and blue image data are output, so that each of the second image data has a fourth bit number which is greater than the first and the third bit numbers.

Abstract: Novel addressing schemes for controlling electronically addressable displays include a scheme for rear-addressing displays, which allows for in-plane switching of the display material. Other schemes include a rear-addressing scheme which uses a retroreflecting surface to enable greater viewing angle and contrast. Another scheme includes an electrode structure that facilitates manufacture and control of a color display. Another electrode structure facilitates addressing a display using an electrostatic stylus. Methods of using the disclosed electrode structures are also disclosed. Another scheme includes devices combining display materials with silicon transistor addressing structures.

Abstract: A liquid crystal display device of the present invention capable of enlarging and displaying to a high picture quality even when display data having a lower resolution than a liquid crystal panel is inputted is provided with storage element groups every drain line within latches of a liquid crystal driver. A portion of the storage element groups simultaneously captures display data. In doing so, the same liquid crystal apply voltage is outputted from drain lines corresponding to these storage element groups. Storage element groups corresponding to neighboring drain lines then simultaneously capture display data so as to enlarge an image in the horizontal direction. The rate of enlargement can be regulated by changing the number of storage element groups simultaneously capturing display data.

Abstract: A system and method for performing a single-pass color quantization for graphic images on a computer. The computer includes a processor capable of running operating code, an input device accessible by the processor for providing a source image, and an output device for displaying a target image. Both the source image and target image include a plurality of pixels, each having red-green-blue components. However, there are fewer available colors for the target image than for the source image. A program instructs the processor to reduce the source image to the target image by reading a pixel from the target image and comparing the color of the pixel to mappings stored in a table. If the pixel color does not correspond to a mapping in the table, then the program instructs the processor to convert the pixel color into hue-whiteness-blackness (HWB) components, map the HWB components to a color of the target image, and store the mapping in the table.

Abstract: A video input level control circuit in a video display device which can improve picture quality of the video appliance by selectively controlling input levels of the video signals inputted in different manners from different-typed video cards of a PC so that the input levels may be minimal.

Abstract: An improved efficiency liquid crystal display device (10) includes at least two pairs of electrode disposed above and below, and on two sides of each display pixel (12). Each pair of electrodes is capable of applying an electrical field to a layer of liquid crystal material disposed therebetween. The applied electrical fields cause the liquid crystal materials to switch from a first to a second optical state corresponding to an opaque and transparent state. The result is a display device having higher optical efficiencies, and faster display response times. Multiple intermediate optical states are possible by applying varying amounts of electrical charge to the two pairs of electrodes at the same time.

Abstract: A portable computer apparatus (1), such as a PDA, has an LCD(3). The LCD(3) can be operated in two modes. In one mode, only a portion of the LCD(3) is active whereas in the other mode, the whole LCD(3) is active. When the apparatus (1) is switched on, it operates according to a first operating program which uses only a portion of the LCD(3). The user may then instruct the apparatus to operate according to a second operating program and use the whole LCD(3).