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| Application No. | Application Title | Issue Date |
| 20090141322 | GENERATING A DEVICE INDEPENDENT INTERIM CONNECTION SPACE FOR SPECTRAL DATA Generation of an Interim Connection Space (ICS) of a full spectral space is provided. A space of illuminants is accessed, and the full spectral space is decomposed into a first subspace that is an orthogonal complement of a metameric black subspace for the space of illu... | 06/04/2009 |
| 20090141321 | GENERATING AN INTERIM CONNECTION SPACE FOR SPECTRAL DATA Generation of an Interim Connection Space for spectral data in a full spectral space is provided. A set of linear maps is accessed, each linear map characterizing a linear transformation from the full spectral space to a colorimetric space, and spectral measurement data... | 06/04/2009 |
| 20050280871 | Method of processing a digital image by means of ordered dithering technique description A dither matrix is applied to a high-resolution image to compare the value of each of the pixels that compose it with a threshold value of the matrix and to obtain an output value of the matrix (Dither matrix value) from each comparison. To each pixel value of the image... | 12/22/2005 |
| 20050275900 | Methods and apparatus for generating dither mask through interpolation between preferred patterns Techniques for generating dither masks are provided. A dither mask is generated by selecting a sequence of at least three original patterns comprising pixels of at least one of a first color and a second color. At least two patterns are interpolated to generate interpol... | 12/15/2005 |
| 20050275899 | Dithering method and related apparatus using aperiodic tiling rule The present invention discloses a dithering method and related apparatus that uses the tiling rule of Wang Tiles. The disclosed method includes the following steps: providing a plurality of dithering tiles, wherein each of the plurality of dithering tiles corresponds to... | 12/15/2005 |
| 20050264834 | Method of generating threshold matrix for creating halftone dot image and method and apparatus for creating halftone dot image and recording medium To generate a threshold matrix which is compared with an original image in creating a halftone dot image for each color component, in a matrix area for one color component, dot centers are arranged almost uniformly in a random fashion at a predetermined density and in a... | 12/01/2005 |
| 20050219563 | Printing system, printing device, and printing method A printing system of the invention sets each pixel group having a predetermined number of multiple pixels, determines a number of dots to be created in the pixel group, and supplies the determined number of dots as number data to a printing device. The printing device c... | 10/06/2005 |
| 20050219567 | Replacement halftoning A method and an apparatus to perform replacement halftoning is disclosed. In one embodiment, the method comprises dithering multiple color channels of a pixel of an image to generate a plurality of halftone outputs. Each of the halftones corresponds to a distinct color ... | 10/06/2005 |
| 20050195439 | Threshold matrix, a method of generating the same, and a method of reproducing color image A dot pattern with a plurality of pixels representing a two-dimensional image is formed on a printing plate material by applying laser beams, which are turned on and off for each pixel depending on dot pattern data, to the printing plate material in a main scanning dire... | 09/08/2005 |
| 20050195443 | Method and apparatus for processing images The image processing method and apparatus use a digital half-toning technique. The method and apparatus split a continuous tone image into split regions, compute an area size of each of the split regions and select an optimum halftone best suited to each of the split re... | 09/08/2005 |
| 20050195440 | Threshold matrix, a method of generating the same, and a method of assigning the same The number of pixels of a dot of a minimum size, a pattern frequency of an intermediate tone, the number of new dots of the minimum size at each dot percentage are determined. Then, thresholds in the threshold matrix are determined so that the optimum dot pattern at eac... | 09/08/2005 |
| 20050157318 | Method for multi-color, clustered, dot-off-dot halftoning A method for forming a multi-color, clustered dot-off-dot halftone screen, includes defining a range of density values for pixels of a first color and assigning those density values to positions along a pixel growth curve; defining a range of density values for pixels o... | 07/21/2005 |
| 20050122534 | Ejection control of quality-enhancing ink This invention is a printing control method of generating print data to be supplied to a print unit which is capable of forming dots on a print medium by ejecting at least one type of colored ink containing a color material and a quality-enhancing ink for enhancing qual... | 06/09/2005 |
| 20050083553 | Half toner and compositor circuit for a printer Print data in the form of continuous tone CMYK data and bi-level black layer data requires conversion to a format suitable for processing by an ink droplet printhead. A half toner and compositor circuit is provided that includes a multi-threshold dither circuit to conve... | 04/21/2005 |
| 20050062989 | Color reduction processing apparatus and color reduction method A color reduction processing apparatus and method that is simple to configure and adjust produces two-color print image data reflecting the impression of the original full-color image. Each pixel in a full-color image is converted to binarized principal and secondary co... | 03/24/2005 |
| 20050012945 | Macro-pixel image rendering apparatus and associated methods A macro-pixel used in an image rendering process for forming an image using a matrix of macro-pixels. The macro-pixel comprises a plurality of rectilinear parallel rows. All rows extend across the matrix in the same direction and each one of the rows is capable of at le... | 01/20/2005 |
