97 results about "Color quantity" patented technology

In a system in which an editing server and a plurality of client computers are capable of communicating with one another, an edited image can be generated by the plurality of client computers.When image data is transmitted from the image server to the client computer, the resolution of image data to be transmitted is reduced in correspondence with the resolution of a monitor display device connected to the client computer. Further, the number of colors of an image represented by the image data is decreased in correspondence with the number of colors which can be displayed on the monitor display device. The data quantity of the image data to be transmitted is reduced, so that time required to transmit the image data is shortened.A client computer and a main image server are connected to each other. A user image to be synthesized on a template image is read in the client computer. Image data representing the template image used for the image synthesis and image data representing a mask image are transmitted from the main image server to the client computer. In the client computer, image synthesis processing is performed. Image data representing an area required for image synthesis of the user image used for the image synthesis is extracted. The extracted user image data and synthesis information required for the synthesis are transmitted from the client computer to the main image server. In the main image server, a composite image is printed.

Electronically programmed signs consist of any array of picture elements (pixels) that can be controlled independently to create an image. Varying the intensity of each pixel and adding multiple colors per pixel will enhance the image quality. It is currently common to have displays that use one, two or three separate colors in a pixel (monochrome, red-green, and red, green and blue) with intensity levels of two, four, eight up to 256 and beyond. Multiple colored pixels can combine colors at various intensity levels to expand the displayable color palette. The number of colors it is possible to display is calculated by the following formula:total⁢⁢number⁢⁢of⁢⁢displayable⁢⁢colors=(number⁢⁢of⁢⁢primary⁢⁢colors)(number⁢⁢of⁢⁢intensitylevels⁢⁢per⁢⁢colors)While raising the number of intensity levels and colors improves image quality, it also raises the viewer's sensitivity to inconsistencies in both parameters.

A method for converting video from a first format into a second format, the method including decoding into a series of frames video that is encoded in a first format, mapping the colors represented in the frames into a palette having fewer colors than the number of colors represented in the frames, removing noise from the frames, selectably removing at least one frame from the sequence, and re-encoding the sequence using the fewer colors into a second video format.

Even when a remaining amount of an image memory built in a digital camera is decreased, the photographing can be further continued while reserving a photographed image. An image which is obtained from an image input unit including image pickup means is accumulated into an image memory. When a remaining amount calculating unit detects that the remaining amount of the image memory is small, an image record discriminating unit compares it with an image size in a photograph mode at that time which is obtained from an image size table, thereby discriminating whether the continuation of the photographing can be performed or not. When the photographing is impossible, an image selecting unit selects an old image, an image in which the number of colors is small, or the like on the basis of management data regarding the photographed images in a memory managing table. The selected image is transmitted by a PHS communication by a data transmitting apparatus. After it was transmitted, the image is erased from the image memory.

The invention discloses a human body motion feature extraction method based on a global remarkable edge area, comprising steps of using a contrast between an area and a whole image to calculate the significance, reducing the color quantity of the color space, smoothing the significance of the color space, calculating the significance area according to the space relation of the neighboring areas, performing morphology gradient changing on the foreground area segmented by a binarized threshold to generate a global remarkable edge area, traversing strong corner points of all grids of the video frames under various sizes, collecting key characteristic points, the light stream amplitude value of which is not 0, in the remarkable edge area, solving the displacement of the strong corner point according to the corrected light stream field, and forming the human body motion local time space characteristic by using the strong corner point continuous multi-frame displacement locus and the neighbourhood gradient vector. The invention extracts the motion characteristics through global remarkable edge area, eliminates the background noise points irrelevant to the human body motion, removes the affect on the light stream calculation by the camera motion, improves the accuracy of the human body motion local time space characteristic description and improves the human body motion recognition rate.

According to this invention, while the encoding efficiency of image data (e.g., a natural image) substantially maintains the conventional one, an image (e.g., a CG image or text document) having a small number of appearance colors is losslessly encoded at higher compression ratio. For this purpose, pixel data are input in the raster order and temporarily stored in a buffer. Pixel data at positions having undergone encoding are stored. A neighborhood matching determination unit generates first information representing whether a pixel having the same color as that of the pixel of interest exists in neighboring pixels a, b, and c, and second information for specifying whether a pixel having the same color as that of the pixel of interest exists, and if the pixel having the same color exists, specifying the neighboring pixel. A pixel matching detection unit counts the number of colors contained in the neighboring pixels a, b, and c, and generates information representing whether the number of colors is two or less, or three or less. On the basis of the first information and second information, a code generation unit outputs one or both of encoded data from a matched-pixel position encoding unit and prediction error encoding unit.

By suppressing deviation of dot-formation positions stemming from insufficient accuracy in conveying a printing medium due to eccentricity of a conveying roller, a printed image in which unevenness is less visible is obtained. An accumulated amount of conveyance errors is reduced by narrowing a nozzle-use range and by reducing a conveyance amount over an entire printing region according to the number of colors to be used and desired printing quality in printing an image. Moreover, the nozzles used when the nozzle-use range is narrowed are not fixed, and are switched to be used as appropriate. This prevents only certain nozzles from being used concentratedly, and allows all of the nozzles to maintain substantially the same ejection performance.

The invention relates to an inductive regulation LED desk lamp, comprising a foundation, a support and a light source base. The support is connected with the foundation and the light source base. A light source is provided in the light source base. The light source comprise a plurality of red LEDs, green LEDs, blue LEDs and white LEDs which have adjustable temperature and color quantity. The foundation is composed of a foundation cover and a foundation disk. The invention comprises a function selection key interface cognizing the customer by the key, which outputs the preset value to a PWM signal based on the selection mode. The lighting control section provides a learning mode, an induction mode and an atmosphere mode. The display section displays the lighting mode and time. The loudspeaker plays the lighting mode, times and alarms. The desk lamp provides rich light modes by regulating the color temperature and the lightness of the LED light source, thus protecting the vision and improving the learning efficiency and providing an inductive lighting with a certain psychotherapy function according to the abundant lighting colors. The LED lamp has gentle rays, plural colors, beautiful appearance and easy operation.

The invention provides a hue-based volume-flexible color two-dimensional code stream data communication method and system. The method comprises the following steps: obtaining color recognition rate of a picture shooting device, and finding the number of colors in the device when the two-dimensional code capacity can be maximized; carrying out original data segment according to the selected optimal color quantity and adding check bit and a mask; carrying out color mapping with data by utilizing a color set obtained through a color generation algorithm and generating a color two-dimensional code; finding a two-dimensional code positioning pattern in each picture and carrying out positioning on each color block; carrying out color identification according to each color plate in the code; and finally, carrying out mapping between the identified colors and the corresponding data, and obtaining transmitted data after check and mask removal. Through the color generation algorithm, color identification rate is improved, and the capacity of a conventional two-dimensional code is improved; and the two-dimensional code stream serves as a communication mode to realize data transmission between devices, and transmission efficiency is high.

According to this invention, encoded data of a target data amount can be generated by one image input operation while both lossless encoding and lossy encoding are adopted. For this purpose, a first encoding unit which generates lossy encoded data, a second encoding unit which generates lossless encoded data, and an attribute determination unit which detects the number of colors in a pixel block to be encoded parallel-process the same pixel block. When the number of colors in the pixel block of interest is equal to or smaller than a predetermined number, an encoding sequence control unit stores lossless encoded data in a first memory. When the number of colors exceeds the predetermined number, the encoding sequence control unit stores encoded data of a shorter code length among lossy encoded data and lossless encoded data in the first memory.

The present invention provides an image processing apparatus, and an image processing method, which can reproduce an edge portion with a high resolution in a high resolution raster image, and suppress image degradation such as a jaggy, while suppressing processing cost. In the present invention, an image processing part divides image data of raster data into blocks of M×N pixels (M, N are integers of 1 or more and also at least one of M and N is an integer of 2 or more). Then, the part performs color rounding processing in the block and counts the number of colors in the block. Subsequently, when the number of colors existing in the block is two, the part acquires shape information about arrangement of the two colors. Then, the part stores the shape information and color information for a first color and color information for a second color.

A processing method of image coding / decoding based on pixel statistic character and vision character includes counting out pixel number of each color for each image, utilizing similar color with pixel number being greater than pixel threshold in image to replace color with pixel number being less than pixel threshold, using algorithm of present invention to calculate color diversity ratio between each color in image according different sensitivity of human eye on red-blue-green colors and combining two colors with color diversity ratio being less than set threshold of color diversity ratio to be color with more pixel number.

The present invention relates to one kind of product anti-fake label made of material with some texture characteristics. The randomly formed figure, color and amount in the marker are used as the anti-fake information and coded as the anti-fake data stored in the data base of computerized identification system while being printed in anti-fake marker. The consumer can chedk the figure and color inthe label via comparison with the code to verify the truth of the commodity and may also check the codes in the marker via comparison with those in computer data base to verify the truth of the commodity through modern communication means.

Color distribution of the colors of pixels of an image is generated in an RGB color space. The color space is modified so that the length of each of an R-axis, G-axis, and B-axis in the RGB color space satisfies the ratio of 3:4:2. Color distribution is generated in the modified color space. The modified color space is divided, based on the color distribution, into a predetermined number of regions, which is less than the number of colors of the image, by using median cut algorithm. A color, which is a median in each of the divided regions, is selected as a representative color.

The invention discloses a shower multi-activity dyeing method of silk floss blending fabrics. According to the structure of silk molecule, it uses the cross-linking effect of multi-activity base dye to multi-reaction between silk fiber structure, it decreases the raw fiber rate, at the same time, it uses the caustic soda and soda ash as soda agent, the silk fiber and cotton fiber will properly swell, it is beneficial for dye to permeate into fiber, enhances the homogeneity, reappearing and color quantity of dyeing, the invention can dye silk floss blending fabrics on time.

The present invention relates to a product antifalse logistics label. It is made up by using material containing structure characteristics. It selects and uses the pattern, colour and number which are formed by utilizing regular and random material on the identifier as antifalse logistics information, and said information can be made into the digital code and bar code which are correspondent to the above-mentioned radomly-formed regular pattern, colour and number. The digital code and bar code can be printed on the upper portion of label, and the digital code can be stored into the computer identification system data base. The consumer can utilize the communication equipments of telephone, facsimile equipment and computer network to make checking and verification to distiguish the true product from the false product.

What is provided are a novel system, method, and computer program product for estimating the amount of color in a document to be printed, with the capability to handle composite black. A color billing strategy can be dynamically determined based on the amount of color in the document. In one embodiment, a contone CMYK image is examined and the level of color is estimated based on information extracted from the four planes simultaneously. More specifically, it examines the pixel values from all the four planes to calculate the number of white, black, color, and gray or neutral pixel counts. Input CMYK values can be pre-adjusted via a look-up table to take into account neutral balance characteristics. The difference among the adjusted color values is compared against a threshold that is input level dependent. Color is further subdivided into fuzzy colors to handle highlights and neutral areas.

A display drive circuit for outputting a gray scale voltage according to display data includes a generation circuit generating gray scale voltages of a plurality of levels, and a selection circuit which selects a gray scale voltage according to the display data. When the number of colors to be displayed is small, the generation circuit decreases a current flowing into an internal circuit which generates a gray scale voltage of an intermediate level other than two gray scale voltages of a gray scale voltage of the most lowest level and a gray scale voltage of the most highest level among the gray scale voltages of the plurality of levels, and the selection circuit selects the gray scale voltage according to the display data from the most lowest level gray scale voltage and the most highest level gray scale voltage which are generated.

In a client-server architecture, data transmission performance enhancing features are described, including a color quality approach and a packet shaping approach. A method includes a color quality data transformation including: selecting a quality level to apply to a set of image data having a number of significant color bits defining an initial number of possible colors; applying a pixel mask to the set of image data, the initial number of possible colors reduced to a smaller number of possible colors as a function of the quality level; loading the set of image data into an output buffer; and sending the set of image data from the output buffer to a display engine. Another method includes a packet shaping data structure transformation including if i) a total network time, defined by a total time of requests in a pending request queue, is equal to or greater than a current round trip time, defined by twice a current latency, and ii) a total request time, defined by a sum of a total time of requests in the pending request queue and a total time of requests in a transmitted request queue, minus the total network time is equal to or less than half a preset limit, then forming a shaped packet by associating a first data portion with a second data portion and a header.

The invention improves the refresh rate and minimizes the memory for display when reproducing a color image. A color image encoding device has a creation device which counts the number of colors used in color image data and creates a global palette which lists corresponding indexes when the number of colors is a specified value or less, a block division device which divides the color image data into a plurality of blocks, a local palette creation device which creates a local palette which lists indexes in the global palette when the number of colors in a block is less than the number of colors in the global palette, and a color index assigning device which assigns the indexes in the global palette to the input pixels when the number of colors is the same as the number of colors in the global palette, and assigns the indexes in the local palette to the input pixels when the numbers of colors is different from the number of colors in the global palette.

Image data is divided into blocks each of a 2×2 pixel size, and color-reduction processing is performed for the target block based on color data and attribute data of respective pixels forming the target block. A pattern flag indicating the layout pattern of color data contained in the target block is specified by comparing the color data of the respective pixels in the target block having undergone the color-reduction processing. Color data corresponding to a pixel at a position defined in advance in the block having undergone the color-reduction processing is extracted as color data of the first color. When it is determined that the number of colors in the block is one of two to four, color data of the second to fourth colors are extracted. The pattern flag, the color data of the first color of the block, and those of the second to fourth colors of the block are output.

The invention discloses a distributed graph coloring algorithm based on Pregel. The distributed graph coloring algorithm comprises the following steps that a random number as a weight value is respectively assigned to all points in a graph G; a color value of 1 is assigned to a vertex with a degree of 0, that is, the vertex has no edge to be connected with other vertices; the current color value is initialized to 1; the Pregel model is used for finding an independent set S, and three schemes are included; the current color value is assigned to any vertex v in the independent set; the colored vertices are removed from the graph G, and the color value is increased by 1; the step 4) to the step 6) are executed again until all points in the graph G are colored. The distributed graph coloring algorithm adopts the Pregel model suitable for large-scale graph calculation to improve efficiency of a parallel graph coloring algorithm. Based on an idea of finding the maximum independent set, graphcoloring processing is performed on large-scale graph data, and the purposes for reduction of graph coloring algorithm time and the number of colors required for coloring are achieved by means of introduction of optimization strategies.

The invention relates to an air-float type film turning device used for once double-side intaglio printing of a film, which comprises five rolling guide rollers, two air-float type guide rollers, a vortex pump fan and a rubber pipe, wherein the two air-float type guide rollers are fixedly mounted in a vertical crossing form at a 45-degree angle. According to a normal printing process, the air-float type film turning device is used for printing one side of the film and then finishing an operation of turning from a positive side to a negative side (namely, realizing 180-degree turning during a film proceeding process) with the help of the running between the five rolling guide rollers and two air-float type guide rollers, and lastly the negative side printing is directly carried out for once finishing a whole printing process. The air-float type film turning device is mounted on a slide rail and can flexibly adjust the quantity of printing colors of the positive and negative sides according to a practical printing requirement (for example, printing in combination forms, such as eight positive colors, seven positive colors and one negative color, six positive colors and two negative colors, five positive colors and three negative colors, four positive colors and four negative colors, and the like). The air-float type film turning device provided by the invention has the advantages of greatly promoted quality of a printed product, high speed, time-saving property, labor-saving property, electricity-saving property, reduced material loss, energy-saving property, material-saving property, high efficiency, high printing accuracy of negative side, stable quality and the like, and the air-float type film turning device is free from abrading and scratching printing sides.

A method for optimizing an amount of colors used in content data is described. At least one content object is received and it is analyzed if any of the received content objects is a predetermined type. At least one color used within the at least one content object of the predetermined type is determined and the received content objects are rendered to a raster canvas so that the at least one color is protected. Information on the at least one color is stored and at least one characteristic of the rendered content is compared to at least one predetermined criteria. In case of mismatch the amount of colors used in the content of the raster canvas is optimized so that the at least one color used in at least one rendered content object of the predetermined type is protected. Finally, the content is compressed and output.

A method and an apparatus are provided in which a color of an input image can be reproduced with high accuracy by a small number of colors, and an image quality except the color reproducibility can be optimized. A color of each pixel of the input image is converted into one color selected from a plurality of reproducible colors, and an error due to the conversion is diffused into pixels surrounding the target pixel. In this conversion of the number of colors, a plurality of rules to be selected for a plurality of reproducible colors is prepared. One of the plural rules is selected to be applied for the whole or each part of the input image.

A screen display unit includes a display RAM to which a CPU writes palette codes corresponding to character codes, and a selector for selecting display color data read from one of two color palettes on a character code by character code basis in response to the palette codes read from the display RAM. The selector can select one of the two color palettes on a character code by character code basis, thereby making it possible to carry out display in a greater number colors on the same screen than the number of colors indicatable by the display color codes stored in the display RAM without increasing the capacity of a font data memory.

This invention detects an area where image quality greatly changes upon resolution conversion. For this purpose, a block segmentation unit extracts a tile having Tw×Th pixels from a buffer, and stores the tile in a tile buffer. A two-colors ratio calculating unit counts the number of times the number of colors included in a surrounding pixel group positioned near a pixel of interest becomes two during raster scanning of the tile buffer, and calculates a two-colors ratio Cr. A continuous pixel ratio calculating unit calculates, as a run ratio Rr, a ratio at which pixels having the same color continue during scanning of the tile buffer. A difference calculating unit calculates a resolution conversion error Dt when an image of the tile is converted to ½ the resolution. A determination unit determines based on Cr, Rr, and Dt whether a tile of interest is suitable for resolution conversion.

The present invention provides a processor-based method for selecting a color via an electronic visual display means, the method comprising the steps of: displaying to a user a color spectrum on the electronic visual display means, the color spectrum comprising a first region and a second region; the first region displaying a first user observable color range, the second region displaying a second user observable color range, providing a selection means configured to allow the user to select a color displayed within the second region, wherein the number of user observable colors in the second region is greater than the number of colors observable in the first region. The invention allows for the more precise of color selection for a user, particularly for the color of light emitted by a LED lighting device.