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Class 358/3.02 - Print element property varied to represent gray level


Subclass of Class 358 - Facsimile and static presentation processing
Definition: Subject matter wherein a property of a single print element
No. of patents: 100
Last issue date: 05/10/2011


1      
NumberTitleIssue Date
7941750Method and system for defining separate print quality regions within a print job
A user defines regions within each page of a print job and independently specifies a desired print quality setting for each such region. The printer driver running on the host computer that will submit the print job to a printer or printing device has a user interfa...
05/10/2011
7701613Image forming apparatus with random number generator
In an image forming apparatus which expresses lamp lighting energy corresponding to input gray scale data on the basis of on/off of lighting lamp of plural sub-dots corresponding to different lamp lighting times of different assistant scanning positions, with respec...
04/20/2010
7612915Determining composite grays
A system and method for determining composite grays using device values. Device values are received from image data on which color separation was performed. Gray component replacement are determined on black point device values by using target lightness values, targ...
11/03/2009
7557960Image forming apparatus
Uneven image density produced by photoreceptors, in which uneven electrification and sensitivity coexist, is limited economically and space efficiently. For each segment of the surface of the photoreceptor, individual memorizing of slope information K1 defini...
07/07/2009
7528992Image processing device and image processing method
If a false edge will possibly occur at a portion in an image where the input pixel value. Iin is equal to the value (Rj+F), where j=N, S, M, or L, the noise value N is generated when the input pixel value Iin is around the value (Rj+F). The noi...
05/05/2009
7525689Trapping technique for an image which is configured by allocating a plurality of figures having a relative upper and lower position order
In trapping process of a multicolor image, an adjacent vector between an objective figure and a relative figure at an upper side is specified first. Then, with the use of the contour of the objective figure except for this adjacent vector, an adjacent vector between...
04/28/2009
7443541Image processing apparatus and image processing method
An image processing apparatus includes: a recording rate determining section for determining a recording rate of each of a plurality of dot types having different densities per unit area from each other according to an input value including a multi-gradation image d...
10/28/2008
7414756Image processing apparatus for converting image data by unit of multiple pixels and printing apparatus
The image processing apparatus or the printing device of the present invention forms units by grouping adjacent multiple-pixels and converts the image data to the dot data representing dot on/off state for each of pixels. The apparatus stores the dot data in ...
08/19/2008
7408679Method, system and program product for multiple pel print quality enhancement
Disclosed is a method, system and program product for performing multiple-pel print quality enhancement (PQE). As in known methods of PQE, a determination is made of an adjusted sub-pulse value of each pel of an image. In accordance with embodiments of the present i...
08/05/2008
7385730Image processing apparatus, image processing method, and printing apparatus and printing system using the image processing apparatus
In an apparatus for performing printing using a color ink-jet head having a plurality of ink-discharge-port strings corresponding to ink materials having different color tones, a high-quality image having excellent gradation can be recorded, while reducing the cost ...
06/10/2008
7375851State-space based modeling of pixel elements of a dynamically varying color marking device
The color management system comprises a state-space based model for a pixel element in a dynamically varying color marking device. A sensor measures the color of the printed output for construction of a selected set of sensitivity functions representative of color o...
05/20/2008
7365767Apparatus for driving plasma display panel and method for displaying pictures on plasma display panel
An apparatus for driving a plasma display panel and a method for processing pictures of a plasma display panel. An input video signal is converted into sub-field data. It is determined whether address consumption power of the sub-field data is high. When the address...
04/29/2008
7362900Apparatus and method for processing images, recording medium, and program
An image input section outputs the size of an image to a division-number setting section and outputs the image to an edge enhancing section, which enhances the edges of the image. An edge extracting section extracts the edges, an edge evaluating section checks wheth...
04/22/2008
7355753Color saturation adjustment
A method of adjusting primary color data values including producing color saturation adjusted primary color data values that depend on a relative amount of chroma in the initial primary color data values. ...
04/08/2008
7342687Image reading apparatus and light source stability determination method
A scanner has an imaging device which is constituted by a cold-cathode tube, includes a light source for irradiating light to a reflection surface of a reference white plate and a plurality of pixels arranged in one line, and detects light reflected on the reflectio...
03/11/2008
7330290Image forming apparatus
An image forming apparatus adds a plurality of dots of image data in the subscanning direction and starts generating a density from a particular pixel, and switches PWM (Pulse Width Modulation) right and left phases in order to concentrate potentials and to increase...
02/12/2008
7312895Image processing apparatus and method
This invention has as its object to prevent image quality deterioration of vector and raster image parts by allowing adjustment of the toner amount for respective objects when single image data includes both vector and raster image parts. To accomplish this, image d...
12/25/2007
7301552Image forming apparatus with printing data correction arrangement
An image forming apparatus with a plurality of driven elements has a memory for storing driving data on each of the driven elements for driving the driven elements, and a computing unit that reads, from the memory, driving data on a driven element corresponding to a...
11/27/2007
7295347Image processing method for generating multi-level data
A method of processing image data when generating multi-level data having arbitrary levels with arbitrary level spacing. The method scales the value of the input pixel to a common level spacing in relation to the arbitrary level spacing in which the input pixel resi...
11/13/2007
7290844Printer, program and method for printing, image processor, program and method for image processing and recording medium in which the programs are stored
A printer includes: a print head including a plurality of nozzles capable of printing dots of different sizes; a test-pattern forming section that forms test patterns each have only one dot size; a test-pattern printing section that prints the test patterns formed b...
11/06/2007
7289086Image data correction method and apparatus for plasma display panel, and plasma display panel device having the apparatus
An image data correction method and apparatus for a plasma display panel, and a plasma display panel device having the apparatus. The image data correction method calculates a load factor of video signals fed into a plasma display panel, and determines an automatic ...
10/30/2007
7280132Method and device for imaging a printing form
A method for imaging a printing form (10) using at least one controllable light source (42) is described, a number of image spots (20) being generated at a number of positions on the printing form (10) in accordance with image data in a b...
10/09/2007
7245311Image forming apparatus
A photosensitive body has a photosensitive layer. An optical scanning device has a deflector deflecting a light flux emitted from a light source, and scans the surface of the photosensitive body by the thus-deflected light flux. A dot is formed at a center between a...
07/17/2007
7245842Image forming apparatus, image forming system, image forming condition adjusting method, computer program carrying out the image forming condition adjusting method, and recording medium storing the program
An image forming apparatus including: at least one image forming unit including an image bearing member bearing a latent image and a developing device configured to develop the latent image with a developer including a toner to form a toner image thereon; optionally...
07/17/2007
7245397Apparatus and method for halftoning color image by quantizing tone level of subject pixel based on tone levels of neighboring pixels
An image forming apparatus is disclosed in which a quantization is effected for a halftone color image decomposed into pixels, in which a comparison is made, for respective separate color-components of each pixel, between a tone level of each pixel and a threshold v...
07/17/2007
7196822Security document manufacturing method and apparatus using halftone dots that contain microscopic images
A method to capture any user-selected image such as a corporate logo, a photograph, or a key word or phrase, and to convert that image into a microscopic halftone dot with tonal variation features, and to allow substitution of theses dots for conventional square, ro...
03/27/2007
7196815Reproduction method for printing
To provide a reproduction method for printing wherein characteristic data of an original are transformed into data required for printing, with the dot gain being controllable so as to yield optimum reproduction results in the print, it is proposed that a modified ch...
03/27/2007
7194142Selective thickening of dark features by biased sharpening filters
Processing of a pixel of a digital image includes sharpening a digital image, while boldening dark features in the digital image as a non-decreasing function of local contrast. ...
03/20/2007
7170640Adequate quantisation in multilevel halftoning
The method reproduces an electronic image, having pixels, as a multilevel halftone image on a multilevel output device having N different allowed output values (possible density levels) by choosing for any pixel p a real subset S
01/30/2007
7170639Halftone method and apparatus that provides simultaneous, multiple lines per inch screens
A halftone threshold matrix includes a plurality of submatrices, wherein a first group of the plurality of submatrices has a line screen frequency different from a second group of the plurality of submatrices. The halftone method and apparatus removes the restrictio...
01/30/2007
7154515Method and apparatus for reducing printing artifacts of stitched images
A method and apparatus for eliminating artifacts in images formed using more than one image segment. A buffer region associated with two adjacent image segments is defined wherein the intensity levels of the pixels are attenuated. When image segments substantially o...
12/26/2006
7145702Image processing method
An image data of M-gradations in a pixel is converted into multivalued image data of N-gradations (M>N>2) in a pixel. A remarked pixel converted into the multivalued data is determined whether to be a predetermined gradation TJ (N>TJ>2) in which a tone jump occurs. ...
12/05/2006
7137681Printing compensating for jetting amount for each of multiple types of ink drops with different sizes
According to the present invention, for at least one specific type of ink drop from among a plurality of types of ink drops of different quantities of ink, dot data can be generated in such a way as to compensate for error of ink amount for each specific type of ink...
11/21/2006
7130083Image recording apparatus, image recording method, method for controlling the image recording apparatus, storage medium storing a program capable of being read by a computer, and image processing method
When recording a gradation pixel by performing pseudo-halftone processing, the occurrence of unevenness in the density in the recorded image is suppressed. For that purpose, when recording a pseudo-halftone image using dot patterns, a dot-pattern table storing a plu...
10/31/2006
7126723Producing engraving-style halftone images
An image processing scheme that applies engraving-style effects to an image is described. In one embodiment, an initial line pattern is warped to produce a warped line pattern, and an original image is mapped onto the warped line pattern to produce an engraving-styl...
10/24/2006
7102801Pulse-width modulated drivers for light-emitting units of scanning mechanism
A scanning mechanism of one embodiment of the invention is disclosed that includes light-emitting units, an integrating detector, and pulse-width modulated (PWM) drivers. Each light-emitting unit can emit colored light corresponding to a color of a color space. The ...
09/05/2006
7075674Image recording apparatus
When correction data is set, a CPU 3 reads out the correction data from an EEPROM 8 through strobe signal lines STB1-N to STB4-N and supplies it as print data signals DATA3 to DATA0 to an LED driver IC 6. When the dri...
07/11/2006
7075243Driving apparatus for plasma display panel and gray level expressing method thereof
A PDP driving apparatus and a gray level expressing method thereof that improves the expression of the gray level and reduces pseudo-contour. The average signal level of one frame data of an input image signal is calculated to determine a sustain pulse number, and a...
07/11/2006
7068395Image processing apparatus and method
Multivalued image information is input, subjected to multivalued processing, and converted into data representing the number of print dots for each pixel. Print dots are counted for each region made up of a plurality of pixels, and a print dot layout in a region of ...
06/27/2006
7057756Image processor, method for processing image, printing apparatus, printing method, program, and storage medium that stores computer-readable program code
The present invention reduces the granularity of the dots for the entire density range by optimally setting formation amounts of a low-density dot and of a high-density dot per unit area. For this purpose, the formation amounts of the low-density dot and of the high...
06/06/2006
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