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7623278 |
MEMS Fabry-Perot inline color scanner for printing applications using stationary membranes
A Micro-Electro-Mechanical System (MEMS) based Fabry-Perot array may be used as a spectral filter to light sensing array, such as a CCD or CMOS photodetector. Applying different voltages to the...
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7623272 |
Method and system for diagnosing an imaging system
A method and system for diagnosing an imaging system are provided. The method includes varying a system parameter of the imaging system. The method further includes obtaining a first data set at a...
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7623254 |
Systems and methods for detecting inkjet defects
A method for testing inkjets for defects in an inkjet device includes determining, based on the likelihood that one or more inkjets are defective, whether to perform an inkjet defect test, The...
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7619792 |
Image forming apparatus, image forming method
An image forming apparatus has a calibration mode in which a calibration image is formed on a print medium to correct image forming conditions. The image forming apparatus detects print medium...
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7619791 |
Image forming method and image forming device
A reference developing image is formed on a photoreceptor drum under an image forming condition measured in advance, and the density of this reference developing image is detected. A development...
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7619790 |
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...
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7619775 |
Image forming system with density conversion based on image characteristics and amount of color shift
An image forming system includes an information processing apparatus and an image forming apparatus. The information processing apparatus performs image generation, color conversion, and extraction...
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7619771 |
Color calibration in a printer
A printer includes a color measurement system. The printer can, in response to a trigger event, automatically calibrate the color measurement system using a first print medium of a first media type.
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7619597 |
Method and system for programming, calibrating and driving a light emitting device display
A method and system for programming, calibrating and driving a light emitting device display is provided. The system may include extracting a time dependent parameter of a pixel for calibration.
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7615939 |
Spectrally calibratable multi-element RGB LED light source
An LED lighting system is disclosed. The lighting system includes means to calibrate the light temperature and intensity between multiple modules in one system, or to calibrate the light...
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7609414 |
Image processing method, image processor, storage medium and program
In order to obtain consistent output by a remote color printer over a communication network, a calibration is remotely performed on the remote color printer. More specifically, job data, including...
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7605945 |
Color reproduction definition creating method and color conversion method
The present invention selects color materials for a virtual device from real color materials, adjusts a gray balance to obtain a predetermined black color at a maximum device value by using...
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7599093 |
Image processing apparatus, method and program
A skin-tone image portion contained in an image is detected based upon the shape of the image of a human face. An average value of each of RGB values of pixels that constitute the skin-tone image...
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7595910 |
Method for making a dot for dot proof
A method for making a dot for dot proof for a printing device, such as a press, on another device, such as a proofer, the method including (a) inputting, at pixel level, binary or pseudo-binary...
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7593134 |
Color rendering control system
A color rendering system and method is disclosed. The color rendering system comprising a color rendering strip generation system configured to generate a group of one or more sets of comparison...
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7593132 |
Method for calibrating printing of lenticular images to lenticular media
A method for calibrating the printing of a lenticular image with respect to the lenticules of a lenticular sheet includes the step of printing a test pattern including a plurality of patches on a...
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7589874 |
Color processing method and apparatus thereof
When the color gamut of a printer is further expanded, if the same gamut expansion processing as in the prior art is applied, the chroma level becomes too high beyond necessity, resulting in...
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7589873 |
Setting a color tone to be applied to an image
When setting a color tone during editing of an image, processes such as the following are performed. First, there is displayed a tone setting screen 200 that includes a tone specifying portion ...
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7587095 |
Printing apparatus
Proper correction data is set by scanning a test chart even if the test chart has pixel lines formed thereon as inclined with respect to a secondary scanning direction. A virtual line CL is...
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7586656 |
Process for producing optimised printing forms
The invention is a process for producing an optimised printing form comprising printing onto a substrate with a printing form with predetermined raster percentages on the printing press to obtain a...
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7586651 |
Image formation with priority selection of correction table based on match with print sheet setting information
An object of this invention is to reduce the work load of generating a correction LUT used to correct the tint. To achieve this object, an image forming system according to this invention has the...
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7583420 |
Image processing method and apparatus
It is difficult to adjust a black plate while maintaining accurate color reproduction in a color printer that forms an image using C, M, Y, and K color agents. Upon generating a conversion...
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7583418 |
Array based sensor to measure single separation or mixed color (or IOI) patches on the photoreceptor using MEMS based hyperspectral imaging technology
A Micro-Electro-Mechanical System (MEMS) based Fabry-Perot array may be used as a spectral filter to light sensing array, such as a CCD or CMOS photodetector. Applying different voltages to the...
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7583411 |
Gamut mapping apparatus and method thereof
Apparatuses and methods for performing gamut compression. A gamut mapping apparatus of the invention includes a gamut analyzing unit for analyzing the gamut of a source device and the gamut of a...
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7583409 |
Patch codes with improved robustness
A method for encoding information on a printed page includes generating a set of color patches, each having a unique color. The set of color patches is printed. The printed color patches are...
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7583408 |
Image-forming apparatus and control method thereof
An image density in a predetermined section of an image represented by an image signal is calculated on the basis of the image signal, and the calculated image density is compared with the result...
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7583403 |
Image processing device
An image processing apparatus of correcting the color of a specific range of a pixel signal for each pixel included in an input image signal, comprises an intensity determination means of...
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7580152 |
Image processing apparatus and method and memory medium
A printing system which can obtain a print result at a proper quality without a variation in quality from any printer while freely corresponding to a fluctuation of output image characteristics of...
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7576885 |
Balancing grays on color printers
A gray balancing technique wherein color data values are modified only if the color data values include a gray component.
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7573620 |
Gamuts and gamut mapping
Techniques relating to gamuts and gamut mapping are described. In one instance, a process identifies a gamut attribute and generates a gamut having the attribute.
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7573613 |
Method and apparatus for controlling picture color tone of printing press
A picture color tone controlling method for a printing press is disclosed wherein color tone control can be performed using an IRGB densitometer which requires a lower cost than a spectrometer. A...
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7573608 |
Method of estimating trap from spectral reflectance factor
A method of estimating the trap of an overprint of at least two primary colors from the spectral density curve of the overprint by computing the amounts of the two primary colors that will produce...
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7570402 |
Printing method and printing system
A printing method for printing an image on a medium according to the present invention includes the following steps: printing a correction pattern based on a first gradation value by ejecting ink...
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7570401 |
Proofing method and apparatus that selects the kind of media type and transformation of the input color gamut based on the output device and the results of comparison with a scanned image using a spectrophotometer
A method of and apparatus for producing a validated print-out. The method includes creating a modified virtual image which includes the data from the original virtual image and a virtual original...
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7570282 |
Color correction of multiple colors using a calibrated technique
A system of correcting for color filter array by correcting for a plurality of colors in the color filter array. A color correction matrix is formed which corrects each color for a plurality of...
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7564601 |
Method for generating a tonal response curve for a scanner
A method for generating a tonal response curve for a scanner includes (a) directing light from the scanner to a calibration target having a single uniform neutral tone; (b) measuring with the...
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7561316 |
Adjusting ink-usage parameters to reduce ink usage
One or more ink-usage parameters are adjusted based on ink remaining and historical ink usage, to reduce ink usage for an image to be printed on a sheet of media with ink. The image is printed on...
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7561306 |
One-dimensional lens shading correction
In one embodiment, a method for correcting image data for a captured image for lens shading artifacts is provided. The method comprises determining a plurality of one dimensional correction curves...
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7561304 |
Method of judging whether or not darkness of foreign matter has been read, method of calculating representative value of darkness of test pattern, and apparatus that judges whether or not darkness of foreign matter has been read
A method of judging whether or not darkness of a foreign matter on a test pattern printed on a medium with predetermined darkness has been read at the time of reading the darkness of the test...
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7557969 |
Color balance correction chart, color balance correction method, and image forming apparatus
In the present invention, a front-side focal distance L 2 is changed without changing a rear-side focal distance L 1 so as to bring an MTF value D 2 and brightness fluctuation D 3 into an MTF...
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7557964 |
Methods, systems, and media to calibrate a reprographic system
Methods, systems, and media to calibrate a reprographic system are disclosed. Embodiments of the invention may calibrate a component like scanner and/or printer in response to user input and/or...
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7557959 |
Image processing method, image processing apparatus, and program
In an image processing method for color conversion that converts image data into the amount of color material to be used in printing, the amount of color material that can be obtained in the color...
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7557954 |
Fast color interpolation
A method of performing color conversion to convert a set of input color values to color values in an output color space includes representing an output color in the output color space as a...
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7557837 |
Image pickup apparatus and control method thereof
In an image pickup apparatus, image data obtained by an image pickup unit is subjected to predetermined image processing, and an image is displayed on an electronic viewfinder screen based on the...
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7557826 |
Method for device spectral sensitivity reconstruction
A method and system are provided for approximating spectral sensitivities of a particular image sensor, the image sensor having a color filter array positioned over the image sensor. In one example...
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7554692 |
Correction data acquisition method and calibration system for image display device
A correction data acquisition method for an image display device, which is used to display a predetermined image using a plurality of primary colors. An offset image at a black level is displayed...
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7548355 |
Image scanning apparatus and method, and storage medium
A scheme for obtaining an original image free from any dust or scratches on a film by scanning a film original or the like with visible light and infrared light has been proposed. This scheme...
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7548344 |
Image processing apparatus, and method of controlling the same
Two main-scanning-color-group recognition units, each for measuring a degree of continuity of chromatic pixels in a main scanning direction are provided. A degree of continuity in a sub-scanning...
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7548326 |
Method of adjusting image recording apparatus for correcting skew
A printer processor prints out two sheets of test prints by printing a test pattern on two recording sheets of different lengths. The test pattern consists of eight straight-linear lines that are...
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7542171 |
System and method for compensating for streaks in images using intensity variation of raster output scanner
A method and system compensates for streak defects in an image formed using a raster output scanning device. A reflectance profile is generated from an image generated by the raster output scanning...
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