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7453609 Image color correction method and image forming apparatus  
An image color correction method and an image forming apparatus are provided, which are capable of correcting an image color with much higher accuracy. A first light (red light) is irradiated on...
7453608 Image forming system, image forming apparatus, and control method thereof  
Correction for eliminating deformations of an image to be output from an image apparatus is executed while suppressing the processing load on the host computer side. A host computer acquires...
7453598 Image processing method and apparatus, and color conversion table generation method and apparatus  
Arbitrary source image data, and destination image data obtained by retouching the source image data are recorded. When the user sets, using an image sensing mode setting unit, an image sensing...
7453597 Proof-document formatting to enable full-capability remote proofing in a completely standard proofing station  
One single-stage proofer RIP replaces a conventional setup of two proofer RIP stages in series. Preliminary profile and data processing usually performed at the first of the conventional RIP...
7450278 Calibration method, image forming system, image forming apparatus and calibration program  
A calibration method having the steps of: forming a test image on a sheet; reading the test image on the sheet; and determining correction data to converge data of the test image onto target data,...
7447465 Multi-function peripheral  
A multi-function peripheral includes an image forming unit having an image forming device, and an image reading unit having an image reading device and located above the image forming unit. The...
7447350 Color difference judgment apparatus and method  
The present invention is related to a color difference judgment apparatus for judging a color difference between a first color and a second color in RGB color space. The method is comprising:...
7446901 Conforming output intensities of pens  
A linearization data structure is generated for a pen, in view of another pen, for conforming output intensities of the pen to output intensities of the other pen.
7446900 Generating a target curve and generating a calibration curve  
A calibration target curve with less error is provided even when the number of points to be edited of the calibration target curve is small. An efficient and accurate method for editing or...
7443546 Method for generating a calibration curve  
A method for generating a calibration curve is disclosed. The method comprises the following steps. Calibration data of one line image of a previous scan are first provided. Reference pixels are...
7443537 Methods and apparatuses for printer recalibration  
A test pattern printed by a printer is assessed—without colorimetric equipment—to provide data used in recalibrating the printer. The assessment may be made by an unskilled operator, and can...
7443535 Misalignment correction pattern formation method and misalignment correction method  
A misalignment correction method for forming a plurality of color images on a transfer belt to form a multi-color image and correcting a misalignment of each color using a detection sensor,...
7440138 Conversion of color images to gray value images  
A method of converting a digital color image to a digital gray value image and in so doing distinguishably reproducing colors present in the color image is provided. The digital color image is...
7436555 Systems and methods for verifying scanning mode selection  
In one embodiment, the present invention is directed to a method for verifying a scan mode selection utilized for a scanned image. The method comprises comparing the scanned image to scan samples...
7436549 Patch codes for color calibration job identification encoding  
A color calibration job identification system and method are provided, wherein the job identification data is encoded on a printed page, in a patch code, along with color targets, according to a...
7436543 Color separation based on ink characteristics  
The ratio of ink quantities for reproducing achromatic color by a mixture of primary color inks is termed primary color mixture ratio. A primary coloring factors correlated to the primary color...
7436542 Management system of image forming device  
An management system of an image forming device, which is structured by the image forming device and a management device for managing the image forming device through a communication network; the...
7433102 Reproduction color prediction apparatus and method  
A primary color dot gain correction unit corrects the spectral reflectance of each of a plurality of color agents on the basis of the dot quantity set for each color agent. An initial estimated...
7433101 Method of defining a device color profile for a color output device  
A method of defining a device color profile is described. The method may include (a) storing a first set of color descriptions, wherein each color description describes a color of a different...
7433097 Optical image scanner with moveable calibration target  
A scanner has a calibration target that can be moved in front of the scanline during a scan. This enables multiple calibrations during a scan. A full-color calibration can be performed during...
7433096 Scanning device calibration system and method  
In one embodiment, a scanning device includes a light source configured to selectively illuminate an area of interest and a light sensitive receiver configured to receive light from the light...
7424169 Active compensation of streaks using spatial filtering and feedback control  
An image processing method to reduce streaking on a printed sheet uses a negative feedback system to reduce streaking. The method scans a printed sheet to produce image data. The method further...
7423789 Contaminant particle identification and compensation with multichannel information during scanner calibration  
Methods of identifying the location and dimensions of a contaminant particle on a calibration strip comprise imaging a calibration strip comprising a plurality of channels and a plurality of pixel...
7423784 Processing of signals from image sensing apparatus whose image sensing area includes a plurality of areas  
An image processing apparatus includes an image sensor formed from a plurality of areas each including a plurality of pixels, and a corrector adapted to correct signals from the plurality of areas...
7423778 Prediction model for color separation, calibration and control of printers  
The present invention facilitates the calibration of printers and the color separation of input images into a set of inks by disclosing methods and systems for populating device-calibration lookup...
7420719 Skew correction  
Method embodiments herein print a test document using a multi-function printing device to produce a printed document. This printed document is examined in a first direction to determine a first...
7417769 Color management system using distributed profiles for color printing systems  
A color management system using distributed profiles includes a color printer adapted to print controlled color using a custom profile. The color printer system creates a custom profile by reading...
7417766 Calibration of color devices  
A method of adjusting a non-black primary color value including determining first, second and third portions of the non-black primary color value; determining an adjusted first portion using a...
7417763 Data processing apparatus and method, and image processing apparatus  
A method of reconstructing the content of an ink color decomposition table is available as a method calibrating second- and higher-order colors. However, it is difficult to reconstruct the ink...
7417755 Image processing system, server, image processing apparatus, management method, computer program, and storage medium  
In an image processing system in which a server, a plurality of image processing apparatuses that execute image quality stabilization processing, and a terminal apparatus are connected to each...
7414755 Color quality assessment and color control during color reproduction  
A process for color quality assessment and color control in a color printing process is provided. The process utilizes a test element array including several test elements is co-reproduced with an...
7414753 Color characterization using nonlinear regression  
A color characterization process utilizing nonlinear regression analysis to characterize a color input device. The color input device is used to generate a bitmap of device dependent values from a...
7414752 Scanner and printer profiling system  
An improved color correction system and more specifically, a color profiling system for a printer and scanner. Highly accurate device independent printer profiles are generated using a scanner and...
7414750 Image reading apparatus, image processing apparatus, image reading method, and computer product  
In the image reading apparatus, reference color patches used to determine the necessity of calibration are read, and the read image for the reference color patches is stored. The read image is...
7411700 Printing system calibration  
In an implementation of printing system calibration, a printing system includes a print unit and a calibration system. The calibration system has a learning mode operable to receive a master...
7408677 Profile creation method, profile creation apparatus, and medium recording a profile creation program  
There has been a problem of causing too large a failure in extrapolated portions due to the multiple linear regression analysis or the 3*3 matrix optimization. An interpolation is performed to find...
7403303 Printing system and printing method  
The present invention provides a printing system and a printing method that avoids interrupting a printing process in order to execute a calibration process, while stably reproducing colors. A...
7400430 Detecting and compensating for color misregistration produced by a color scanner  
A method, computer program product and system for detecting and compensating for color misregistration. A black/white edge or a solid color edge on a target may be scanned. A black/white edge may...
7397582 Color characterization with enhanced purity  
The present invention creates a color transform for transforming color image data from a device-independent color space to a device-dependent color space of a color device. A forward model is...
7394571 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...
7394566 Calibration of color devices  
A method of adjusting a non-black primary color value including determining first, second and third portions of the non-black primary color value; determining a first contribution using a first...
7391525 Methods and systems to calibrate media indexing errors in a printing device  
Methods and systems for calibrating media indexing errors in a printing device are provided. In one embodiment, the method comprises feeding a calibration media through a printing device, sensing...
7388690 Method for calibrating an imaging apparatus configured for scanning a document  
A method for calibrating an imaging apparatus configured for scanning a document, the imaging apparatus including a scanner head having an illuminant and a sensor, and a phosphorescent material...
7388688 Printing device, printing method, and printing control program product  
The invention employs at least three chromatic colored inks as well as a chromatic colored ink that has a lower spectral reflectance at each wavelength region in which the spectral reflectance of...
7385738 Read module, poor connection detection apparatus and poor connection detection method of read module  
A read module includes: a light source that applies light to an original to read an image; a photoelectric conversion section that converts reflected light from the original into an image signal of...
7385737 Image processing apparatus and its control method  
Image control which requires time and troublesome work cannot be frequently performed, and image quality such as tonality reproducibility cannot be sufficiently stabilized in correspondence with...
7382507 Image quality defect detection from image quality database  
A method of detecting image quality defects in the output of an image output device includes the steps of generating a test pattern at a known time, analyzing the test pattern to generate image...
7382493 Image processing for optimal color density decomposition based on calculated graininess and equiluminance contours  
Graininess and calorimetric values of color patches formed by an image generating system using dark and light colored recording agents are input to calculate equiluminance contours. Color density...
7382492 Image processing apparatus and image processing method  
The image processing technique of the invention receives an input image with an ID of a digital camera used for taking the input image (step S 100 ) and performs color adjustment of the input image...
7379196 Printing system, printing apparatus, print data transmitting device, and program  
In a printing system, before transmitting print data to a printer, a personal computer transmits a virtual printing start command to the printer. When the data received by the printer is a virtual...
Matches 1 - 50 out of 637 1 2 3 4 5 6 7 8 9 10 11 12 13 >