An image processing apparatus is used for processing of reproducing a target object by applying color onto a structure formed based on a concavo-convex signal indicating a shape of the target object. The image processing apparatus determines, based on concavo-convex data, color data, and color reproducibility, a correction area which is an area in which color reproduction represented by the color data is decreased according to the shape represented by the concavo-convex data. The image processing apparatus corrects the concavo-convex data by smoothing the concavo-convex signal corresponding to the determined correction area.

An image processing apparatus is used for processing of reproducing a target object by applying color onto a structure formed based on a concavo-convex signal indicating a shape of the target object. The image processing apparatus determines, based on concavo-convex data, color data, and color reproducibility, a correction area which is an area in which color reproduction represented by the color data is decreased according to the shape represented by the concavo-convex data. The image processing apparatus corrects the concavo-convex data by smoothing the concavo-convex signal corresponding to the determined correction area.

Provided are a printed matter forming method and a printed matter forming system for forming a printed matter in which the texture of the surface of a target object is satisfactorily reproduced.

In the printed matter forming method and the printed matter forming system according to embodiments of the present invention, a printed matter is formed by forming a printing layer on the surface of the internal scattering member in order to reproduce the texture of the surface of the target object. Further, in the present invention, the first light scattering characteristic data about the light scattering characteristic with respect to the incident light on the surface of the target object, the second light scattering characteristic data for each type of fluid relating to the light scattering characteristic of the fluid constituting the printing layer, and the third light scattering characteristic data about the light scattering characteristic of the internal scattering member are acquired. Further, in the present invention, the light scattering characteristic of the printed matter corresponding to the formation condition of the printing layer is estimated based on the second light scattering characteristic data and the third light scattering characteristic data for each type, and the printing layer is formed on the surface of the internal scattering member in accordance with the formation condition which is set based on the estimated light scattering characteristics of the printed matter and the first light scattering characteristic data.

Provided are a printed matter forming method and a printed matter forming system for forming a printed matter in which the texture of the surface of a target object is satisfactorily reproduced.

In the printed matter forming method and the printed matter forming system according to embodiments of the present invention, a printed matter is formed by forming a printing layer on the surface of the internal scattering member in order to reproduce the texture of the surface of the target object. Further, in the present invention, the first light scattering characteristic data about the light scattering characteristic with respect to the incident light on the surface of the target object, the second light scattering characteristic data for each type of fluid relating to the light scattering characteristic of the fluid constituting the printing layer, and the third light scattering characteristic data about the light scattering characteristic of the internal scattering member are acquired. Further, in the present invention, the light scattering characteristic of the printed matter corresponding to the formation condition of the printing layer is estimated based on the second light scattering characteristic data and the third light scattering characteristic data for each type, and the printing layer is formed on the surface of the internal scattering member in accordance with the formation condition which is set based on the estimated light scattering characteristics of the printed matter and the first light scattering characteristic data.

A drawing system according to an embodiment of the present disclosure includes a storage, an operation section, and a drawing section. The storage stores a characteristic function that derives output setting values of light sources on the basis of drawing coordinates, an absorbance correlation value, and gradation values in a leuco color space. The operation section derives the output setting values by inputting, to the characteristic function, the drawing coordinates, gradation values of leuco image data described in the leuco color space, and an absorbance correlation value obtained by measuring the recording medium. The drawing section includes the light sources, and controls output of the light sources on the basis of the output setting values derived by the operation section to thereby perform drawing on the recording medium.

When a first liquid containing the particles whose particle size average value is a first particle size is supplied to the liquid discharge head, the control device controls the circulation mechanism so that a circulation flow rate of the first liquid in the supply flow path, the nozzle flow path, and the discharge flow path is a first flow rate. When a second liquid containing the particles whose particle size average value is a second particle size larger than the first particle size is supplied to the liquid discharge head, the control device controls the circulation mechanism so that the circulation flow rate of the second liquid is a second flow rate lower than the first flow rate.

When a first liquid containing the particles whose particle size average value is a first particle size is supplied to the liquid discharge head, the control device controls the circulation mechanism so that a circulation flow rate of the first liquid in the supply flow path, the nozzle flow path, and the discharge flow path is a first flow rate. When a second liquid containing the particles whose particle size average value is a second particle size larger than the first particle size is supplied to the liquid discharge head, the control device controls the circulation mechanism so that the circulation flow rate of the second liquid is a second flow rate lower than the first flow rate.

A multicolor thermal printer comprising a controller, a thermal printhead, multicolor thermal paper, a monochrome lightness sensor, and a calibration subsystem is described. The calibration subsystem prints a calibration target that is scanned by the monochrome lightness sensor to determine if color crosstalk is present. If color crosstalk is present, the calibration subsystem decreases the contone range of affected colors and saves the new calibration settings.

A multicolor thermal printer comprising a controller, a thermal printhead, multicolor thermal paper, a monochrome lightness sensor, and a calibration subsystem is described. The calibration subsystem prints a calibration target that is scanned by the monochrome lightness sensor to determine if color crosstalk is present. If color crosstalk is present, the calibration subsystem decreases the contone range of affected colors and saves the new calibration settings.

A light emitting device includes: a base plate extending in a first direction; a plurality of light emitting units arranged over a front surface of the base plate while being shifted from each other in the first direction, and each including a support body extending in the first direction and a plurality of light sources supported on the support body while being arranged in the first direction; a flow path disposed on a side of the base plate opposite to a side facing the light emitting units to feed air therethrough in the first direction; and a wire electrically connected to at least one of the plurality of the light emitting units, and disposed inside the flow path.