Seiko Epson Corporation

Akira Hiroshige

Yoshihiro Nakami

Mamoru Sakai

Katsuyuki Komatsu

The advantage of the invention is to prevent the efficiency of printing from being deteriorated due to execution of an authentication process during a print process by arranging an authentication process not to be conducted during a print process. The multi-purpose device is connected to the authentication switch through the LAN. The authentication switch conducts an authentication process of a device connected to the LAN, and disconnects a connection between the device and the network in a case where the device cannot be authenticated. The multi-purpose device has the authentication requesting section that requests the authentication process with respect to the authentication switch; and the printing mechanism that prints print data. In a case where the printing mechanism conducts the print process, the authentication requesting section requests the authentication process before the printing mechanism starts the print process.

Printing device and method for controlling printing device

Electronic data output from CCD is separated into a brightness component Y and color difference components Cb and Cr and an edge is extracted for each of the components. The edge amounts are calculated from the extracted edges and the component having the maximum edge amount is selected. Edge information (for example, edge gradient direction) is calculated based on the selected component having the maximum edge amount, a filter is selected based on the calculated edge information about the component having the maximum edge amount, and smoothing processing is performed for the electronic data output from the CCD based on the filter. The electronic data subjected to the smoothing processing is written into flash memory.

Image processing method, image processing program, image processing apparatus, and digital still camera using the image processing apparatus

An apparatus for displaying an image comprises, an access unit that accesses images stored in a recording medium; an image order management unit that orders a plurality of the images cyclically in such a manner that an end one of the images may be followed by a top one of the images; a first input unit that inputs a first command; a second input unit that inputs a second command; and a display unit that displays on one screen a display-subject area that corresponds to one portion of such a limitless two-dimensional array of the images that the images adjacent to each other in an x-direction may have consecutive order numbers and a difference in order number between the images adjacent to each other in a y-direction may be a first value of not less than two, and moves the display-subject area in the x-direction in accordance with the first command and in the y-direction in accordance with the second command.

Apparatus for displaying an image

An image processing apparatus includes: an image input unit into which image information is input and which can output the image information as electronic data; and an intensity computation unit for computing smoothing intensity for smoothing the electronic data, from the intensity of a predetermined color component included in the electronic data output from the image input unit. The smoothing intensity is set on the basis of a relationship between the intensity of a predetermined color component and the frequency of noise. When the intensity of a predetermined color component output from the pixel of interest is high, a rate at which the intensity of the predetermined color component output from the pixel of interest is to be distributed to surrounding pixels constituting the matrix is set to a large value. When the intensity of the predetermined color component is low, the rate is set to a small value.

Image processing method, recording medium, and image processing apparatus

The edge of an image is extracted, and edge information that includes the grade and the direction of the slope of the edge is obtained. The smoothing strength is calculated using the luminance of a pixel, and filter information is selected from the obtained edge information and the obtained smoothing strength. Then, digital data is smoothed by using the selected filter information. Since the filter information is set in advance, a fast smoothing process is implemented by selecting appropriate filter information. Further, the information for a smoothing range describes an elliptical shape when the slope is large, and the smoothing range is inclined in accordance with the direction of the slope. Therefore, noise near the edge can be thoroughly removed.

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Nagano, Japan

Akira Hiroshige