Seiko Epson Corporation

Takumi Shimomukai

Katsuyuki Tanaka

Yuko Yamamoto

Mitsuhiro Yamashita

Takuya Ono

Masayuki Seko

Makoto Fujino

Takahiro Kamada

Naoki Hagihara

Shotaro Matsuda

Provided is an image processing device coupled to a printing device that performs printing on a medium by ejecting ink having a plurality of colors, and configured to convert image data into ink amount data. The image processing device includes: an input unit configured to input a search condition; an acquisition unit configured to acquire a plurality of search values based on the search condition input by the input unit; a table storage unit storing a plurality of image conversion tables for converting the image data into the ink amount data; and a search unit configured to search the plurality of image conversion tables for a target image conversion table based on the plurality of search values acquired by the acquisition unit.

Image processing device, image processing method, and image processing program

A profile creation device that causes a display section to display a display screen displaying an input color space image and an output color space image, the profile creation device includes an acquisition section that acquires first color gamut data indicating a color space related to the input device and second color gamut data indicating a color space related to the output device, an image generating section configured to generate an input color space image of a three dimensional image based on the first color gamut data and an output color space image of a three dimensional image based on the second color gamut data, a display control section configured to generate screen data for displaying the display screen having an image display area for displaying the input color space image and the output color space image generated by the image generating section, and an input and output section for transmitting the screen data generated by the display control section to the display section.

Profile creation device and method generating and displaying input and output device color gamuts as 3D images

An image processing device includes an image input section configured to receive input of an image, a chromatic value acquisition section configured to obtain a chromatic value with respect to each of pixels of the image, an RGB conversion section configured to convert the chromatic value of each of the pixels of the image into an unnormalized linear RGB value expressed by a linear RGB value based on a characteristic of a display which outputs the image, a normalization section configured to divide the unnormalized linear RGB value by a modulus higher than a maximum value of linear RGB values which express displayable colors of the display to thereby generate a normalized linear RGB value when the unnormalized linear RGB value of at least one of the pixels is higher than the maximum value, an outputting RGB conversion section configured to convert the normalized linear RGB value into a display outputting RGB value, and an output section configured to output the display outputting RGB value to the display.

Image processing device and image processing method

A method of creating teacher data used for creating a color prediction model that predicts a spectral reflectance of a printed matter printed using an ink amount set from the ink amount set that is a combination of ink amounts of inks used for printing, includes, in an ink amount space in which a plurality of lattice points are disposed, selecting an ink amount set from an ink amount set associated with each lattice point, according to a predetermined selection rule, acquiring a spectral reflectance of a color chart printed on a printing medium using the selected ink amount set, and setting the teacher data using the selected ink amount set as an input value and the acquired spectral reflectance as an output value.

Method of creating teacher data, color prediction model creation apparatus, and method of creating color prediction model

A color conversion table creation method includes creating a reference color conversion table using a color value of a color chart, and adjusting a color conversion table by adjusting an output value of a specific grid point corresponding to a predetermined input value in the created reference color conversion table, in which the adjusting the color conversion table includes an adjustment amount calculation step of calculating an adjustment amount of the output value of the specific grid point, a ripple amount determination step of determining a ripple amount when the calculated adjustment amount propagates with respect to a peripheral grid point existing in a vicinity of the specific grid point, and an application step of applying the determined ripple amount to the peripheral grid point in the color conversion table.

Color conversion table creation by adjusting output value of specific grid point in reference color conversion table and calculating prorogation to peripheral grid point

A printer has a print unit that prints bidirectionally on a print medium; and an adjustment unit that prints, by the print unit, in contrast with each other on a second print medium, a first direction print image generated using first direction color conversion information for a first print medium, and a second direction print image generated using second direction color conversion information for a second print medium; the second direction color conversion information for the second print medium being second direction color conversion information for the first print medium that was adjusted.

Growing community of inventors

Nagano, Japan

Takumi Shimomukai