Canon Kabushiki Kaisha

Fujitsu Corporation

Tomokazu Ishikawa

Akitoshi Yamada

Fumitaka Goto

Mitsuhiro Ono

Hidetsugu Kagawa

Nobutaka Miyake

Tohru Ikeda

Junichi Nakagawa

Ryosuke Iguchi

Shinjiro Hori

Senichi Saito

Rie Kajihara

Wakako Tanaka

Tetsuya Suwa

Fumihiro Goto

Takashi Fujita

Okinori Tsuchiya

Akihiko Nakatani

Ayumi Sano

Yumi Yanai

Makoto Torigoe

Yutaka Kano

Hitoshi Nishikori

Shigeyasu Nagoshi

Norihiro Kawatoko

Yuji Konno

Kouta Murasawa

Hiromitsu Akiba

Yugo Mochizuki

Takashi Nakamura

Masao Kato

Minoru Teshigawara

Yoshiaki Murayama

Minako Kato

Satoshi Azuma

Susumu Hirosawa

Takeshi Murase

Kentarou Muro

Yoshinori Mizoguchi

Mayumi Kimura

Misako Tagami

China Kamizuru

Hiromu Kosuge

A printing apparatus heats a print medium in which color development layers that develop colors in accordance with heating are stacked in correspondence with a plurality of color. The apparatus includes a drive unit configured to drive each of heating elements of a printhead using a first pulse for preheating a predetermined color development layer, and a second pulse applied after the first pulse to cause the predetermined color development layer to develop the color, and a pulse control unit configured to, when developing a specific color, perform a control in which a pulse width of the first pulse is increased and/or a control in which the number of times of application of the second pulse is increased such that another color development layer that is not used to reproduce the specific color does not develop the color.

Printing apparatus and print control method

To prevent an insufficient development density of pixels with which a high-density image is recorded. Thermal energy to be applied to a pixel of interest is increased if a pixel immediately subsequent to the pixel of interest is one to which energy not causing heat propagation to the pixel of interest is applied.

Recording apparatus and recording method

A recording apparatus includes a recording head including a plurality of heating elements, a sheet-like recording medium formed of a plurality of laminated color-developing layers for developing a plurality of colors. A first condition is satisfied when a subsequent pixel, located at the same position as a target pixel to be recorded following the target pixel, is a pixel for developing a color of a bottom color-developing layer of the recording medium. In a case where a value of the target pixel in the image data is a predetermined value and does not satisfy the first condition, the pulse control unit controls the pulse so that a thermal energy to be applied to the recording medium by the recording head in forming the target pixel is lower than if the first condition is satisfied.

An image forming apparatus includes a print head including heating elements for applying a thermal energy to an imaging material, an operation unit configured to operate the plurality of heating elements of the print head by using a first pulse for preheating the color developing layers and a second pulse for developing the colors of the color developing layers, and a generation unit configured to, in a case where a spatial frequency of the image to be recorded based on image data for forming an image on the imaging material is lower than a predetermined frequency, generate the first pulse so that a temperature to be applied to the imaging material by the first pulse is lower than a temperature to be applied to the imaging material in a case where the spatial frequency of the image data is equal to or higher than the predetermined frequency.

Image forming apparatus and image recording method

Display screen with animated graphical user interface

An image processing apparatus having a generation unit configured to generate an aligned image by arranging a plurality of candidate images extracted from a reference image around a work inspection image extracted from an inspection target image; a unit configured to subject the aligned image to similar region extraction processing to represent a similarity between regions in the aligned image; a determination unit configured to select a candidate image and determine it as a work reference image based on the aligned image after being subjected to the similar region extraction processing; and a comparison unit to compare the work inspection image with the work reference image. The similar region extraction processing subjects each of a plurality of division regions obtained by dividing the aligned image based on predetermined division size and phase, to averaging processing, and then adds the results of the averaging processing that are obtained by varying at least one of the division size and phase.

Image processing apparatus, image processing method and storage medium

A signal processing apparatus includes a unit configured to generate noise cut data by deducting a predetermined noise value from values of respective signals constituting input data and a stochastic resonance processing unit configured to subject the noise cut data to a predetermined stochastic resonance processing. The predetermined stochastic resonance processing is processing to output, in a method of synthesizing a result of parallelly performing steps of adding new noise to the noise cut data to subject the resultant data to a binary processing, a value obtained in a case where the parallel number is infinite.

Signal processing apparatus, signal processing method, and storage medium

An image processing apparatus acquires a work inspection image by image-taking one inspection object, acquires a work reference image that is different from the work inspection image, generates an aligned image by arranging the work reference image at the periphery of the work inspection image and subjects the aligned image to singular portion detection processing to detect a singular portion in the aligned image. The singular portion detection processing is performed on a first work inspection image obtained by image-taking a first inspection object, subsequently the singular portion detection processing is performed on a second work inspection image obtained by image-taking, after the first inspection object, a second inspection object, and subsequently the singular portion detection processing is performed on a third work inspection image obtained by image-taking, after the second inspection object, a third inspection object.

Image processing apparatus, image processing method, and storage medium

A signal processing apparatus includes an acquisition unit that acquires input data and detection target data, a noise strength setting unit that sets a noise strength K used to a predetermined stochastic resonance processing and a stochastic resonance processing unit that performs the predetermined stochastic resonance processing and outputs processed data. The predetermined stochastic resonance processing is a processing based on a formula in which processed data J(x) is represented by I(x), the noise strength K and the threshold value T and the processed data J(x) corresponds to a result in a case where M is infinite in the following formula,  The noise strength setting unit sets the noise strength based on a function of a correlation coefficient between the result of the predetermined stochastic resonance processing and the detection target data and the noise strength K.

Signal processing apparatus and signal processing method setting noise strength for stochastic resonance processing

An image processing apparatus a processor that acquires reading image data, composed of a plurality of pixel signals, and executes stochastic resonance processing, in which each of the plurality of pixel signals is added to noise and is subjected to a binary processing, and a plurality of results, obtained by performing the noise addition and the binary processing on the plurality of pixel signals in parallel, are synthesized. With regard to a pixel signal as a processing target among the plurality of pixel signals, at least one of a strength of the noise and a threshold value used for the binary processing is set based on a pixel signal of the input image data corresponding to the pixel signal. In addition, the processor outputs the result of the stochastic resonance processing.

Image processing apparatus, image processing method, and non-transitory computer-readable storage medium that perform stochastic resonance processing on pixel signals

Parameters are set according to features of a unique portion appearing in a print image, ensuring that the unique portion can be efficiently determined in the print image. In order to do so, information about a form of appearance of the unique portion in the print image is acquired, and the parameters are set in accordance with the form of the appearance.

Image processing apparatus detecting a unique portion in print image data

A signal processing method includes addition of noise obtained by multiplying generated random number by K to the input pixel signal I(x), a binarization process of comparing the result of the addition with two thresholds, and a process of calculating a probability. The binarization process includes a first nonlinear process and a second nonlinear process. The first nonlinear process outputs 'P' in a case where I(x) after the addition of the noise is greater than the threshold T1 and less than the second threshold T2. The second nonlinear determines '1' or &#x201c;0&#x201d; for a processing target pixel, in which the result of the first nonlinear process is &#x201c;P,&#x201d; based on input pixel signals of pixels around the processing target pixel. The process of calculating a probability calculates a probability J(x) that the result of the first nonlinear process is &#x201c;1,&#x201d; or the result of the first nonlinear process is &#x201c;P&#x201d; and the result of the second nonlinear process is &#x201c;1&#x201d;.

Signal processor and signal processing method

An image processing apparatus for detecting a singular point from image data having a plurality of pixel signals arranged in a two-dimensional manner, having a stochastic resonance processing unit configured to perform parallel steps in each of which a noise is added to and the result is subjected to binarization processing, synthesize the results of the parallel steps and output the result, with regard to each of the plurality of pixel signals; and a unit configured to detect the singular point based on the output signal value from the stochastic resonance processing unit for each of the plurality of pixel signals. The stochastic resonance processing unit performs the binarization processing on a pixel as a processing target among the plurality of pixel signals based on the pixel signal of the pixel as the processing target and a pixel signal of a pixel adjacent to the pixel as the processing target in a predetermined direction.

Image processing apparatus, image processing method and non-transitory computer-readable storage medium

An image processor, a printing apparatus, and an image processing method are provided that can reduce, when a plurality of types of inks are used to print an image, the color unevenness that is caused by the variation of ejecting characteristics among a pluralities of nozzles. To realize this, for a color formed by overlapping at least two colors of inks, parameters are prepared that are determined so as to reduce the color difference in the printing medium due to the variation of the ejecting characteristic among the respective pluralities of nozzles. During printing, the parameters are used to correct the first color signal owned by the individual pixels to the second color signal.

Image processor, printing apparatus, and image processing method

An acquisition unit acquires image data resulting from reading an image printed sequentially in a first direction. A setting unit sets a division size in the first direction and a second direction of a division area for dividing the image data, the second direction crossing the first direction, as well as a shift amount in the first direction and the second direction of the division area. A processing unit performs a predetermined process including an averaging process on the image data in accordance with the division size and the shift amount. An extraction unit extracts a unique portion from image data on which the predetermined process has been performed. The setting unit sets (i) the division size greater in the second direction than in the first direction, and/or (ii) the shift amount greater in the second direction than in the first direction.

Image processing apparatus and image processing method setting division size for dividing image data

Growing community of inventors

Kawasaki, Japan

Tomokazu Ishikawa