Minolta Company, Ltd.

Konica Minolta Planetarium Co., Ltd.

Junji Nishigaki

Shoji Imaizumi

Takayuki Nabeshima

Toshio Tsuboi

Katsuaki Tajima

Daisetsu Tohyama

Kenichi Morita

Yoshihiko Hirota

Kazuhiro Ishiguro

Shigeru Moriya

Atsushi Ishikawa

Kenichi Sawada

Hideyuki Hashimoto

Takashi Yamauchi

Hiroyuki Suzuki

Nobuhiro Mishima

Kazuomi Sakatani

Hiroshi Sugiura

Kentaro Katori

Shinji Yamamoto

Mitsuru Obara

Tomoji Tanaka

Koji Tsukada

Fujio Hashimoto, Legal Representative

Nobue Hashimoto, Legal Representative

Kenichi Hyodo

It is intended to provide a digital planetarium picture-projecting apparatus capable of recording and executing an operation procedure, facilitating recording of the operation procedure, editing the operation procedure, and executing an ad-lib representation when the operation procedure is executed. The digital planetarium picture projecting apparatus comprises an operating portion which accepts an operation by an operator about picture projection, an operation display panel which displays information about picture projection to the operator, a manual process recording portion which records an operation procedure executed to the operating portion, and a control portion which executes picture projection according to the operation procedure recorded in the manual process recording portion, wherein a temporary stop or restart operation by the operator is accepted during recording of the operation procedure by the manual process recording portion. Further, information about a projection screen is displayed on an operation display panel during execution of picture projection according to the operation procedure.

Digital planetarium picture-projecting apparatus

A digital planetarium apparatus includes an original image generator, an intermediate image generator, and a fish-eye lens. The original image generator is formed of two video projectors and generates semicircular images in display devices inside the respective video projectors. The intermediate image generator optically focuses the two semicircular images generated by the original image generator to thereby generate a circular image. The fish-eye lens projects the circular image generated by the intermediate image generator.

Digital planetarium apparatus

An image processing apparatus for outputting an image by a printer or a display is provided, in which color reproducibility in the image output of plural pages becomes uniform. The apparatus comprises an image memory for memorizing image data of all pages of one output job that is given to an output device, decision portion for deciding whether the image data of all pages are data within a color reproduction range of the output device or not. A color compression process is performed for the image data of all pages uniformly only when it is decided that the image data of all pages are not data within the color reproduction range of the output device.

Image processing apparatus

An image processing apparatus is provided in which the frequency of undesired delay of the image output can be reduced. The image processing apparatus comprises an image processor for performing a process defined by a parameter on the image data of the received job, a decision portion for deciding a state of the image data of the received job, and a controller for setting a parameter in accordance with the state that is decided by the decision portion if an interval between the received job and the previously received job is longer than a predetermined time, and for setting the parameter that was used in the last job despite the state that is decided by the decision portion if the interval is not longer than the predetermined time.

In order to efficiently process image data in a circuit dividing single image data into a plurality of data and processing the data with a plurality of MPUs in parallel with each other, the MPUs process image data input through an input image data in parallel with each other. An address bus inputs addresses of the image data, and address memories provided on the MPUs store the addresses of the image data processed by the MPUs respectively. When the image data are completely processed, the image data are output through an output image bus while the addresses of the image data are output through the address bus.

Image processor processing image data in parallel with a plurality of processors

An image forming apparatus using an exposure unit of a solid-scanning type such as an LED head, reads out linear distortion correction data of an LED unit, then, calculates an amount of correcting color deviation based on the read-out data, and after that, carries out address control for color deviation correction memory. Based on this control, the apparatus creates a reference resist patterns, calculates an amount of correcting the color deviation, and writes the calculated amount in the color deviation correction memory. After that, the apparatus reads out the linear distortion correction data, and adds the amount of correcting the color deviation that is determined by sensors, and the amount of the color correction based on the linear distortion correction data, thereby carries out address controls for the color deviation correction memory. This constitution allows correcting linear distortion of the exposure unit itself with ease and accuracy, and correcting positional deviation of the exposure unit occurring during product assembly and deviation in a linear arrangement of an LED head with accuracy.

Image forming apparatus having a function for correcting color deviation and the like

In order to improve the processing speed in an apparatus that carries out a plurality of image processing on image data, an image processing system carries out image processing that allows high speed processing such as &#x3b3; correction on all the region in document image data. Image processing is carried out by an asynchronous type circuit such as an MPU on a region that requires matrix operation such as the text region in the document image data. By synthesizing the processed results, one image data is obtained.

Image processing system including synchronous type processing unit and asynchronous type processing unit and image processing method

In a system for variable-length coding, when image data of a plurality of documents are compressed and stored in a compression memory, the image data is divided into a plurality of areas. Then, attributes are discriminated for each area, and the result of the attribute discrimination is written to an attribute memory. Attribute counters count the numbers of the discriminated attributes. A variable-length compression section compresses the code data with a compression method in response to the attribute data written to the attribute memory, and the compressed data is written to a compression memory.

An image processing apparatus for storing image data in a memory, reading image data stored in a memory, and generating print data, and is provided with a size designating means for designating an image size, and a memory control means for storing in memory the image data compressed by a compression method corresponding to a specified image size.

Image processing apparatus for compressing image data with optimum compression method corresponding to image size thereof

An apparatus, a method and a system for image processing with a color correction device are provided in which the number of times of automatic execution of calibration is reduced and the performance of an image output apparatus is used adequately. The apparatus includes a color space conversion portionfor converting input image data Dinto data Dof a standard color space and a reproduction range decision portionfor deciding whether the input image data Dthat were converted into the standard color space are within a reference range of a color reproduction in an image output. If it is decided that the input image data are out of the reference range, the calibration is performed so that the color reproduction range is made close to the reference range.

Apparatus, method and system for image processing with a color correction device

An image processing system provided with a line sensor for reading image signals in line units. First, the line sensor scans a document in a normal direction. At this time the image data obtained by the scan are subjected to image processing such as compression and the like. Areas of image data that cannot be processed to the high moving speed of the scanner are subjected to image processing by later performing a scan in the reverse direction.

Image processing device and image processing method

A data communication apparatus and method are provided in which a faithful color reproduction is enabled in the reception side. The data communication apparatus comprises a first communication portion for a first form of image data communication, a second communication portion for a second form of image data communication and a transmission controller for selecting one of the first form and the second form in accordance with information indicating a color reproduction range of image output in the other end. The image data are transmitted to the other end by the first or the second communication portion corresponding to the selected form.

Data communication apparatus

In a system for variable-length coding, when image data of a plurality of documents are compressed and stored in a compression memory, the image data is divided into a plurality of areas. Then, attributes are discriminated for each area, and the result of the attribute discrimination is written to an attribute memory. Attribute counters count the numbers of the discriminated attributes. A variable-length compression section compresses the code data with a compression method in response to the attribute data written to the attribute memory, and the compressed is written to a compression memory.

Adaptive variable length image coding apparatus

An image forming apparatus comprising a buffer memory for storing image data, a printer unit for printing based on image data output from the buffer memory, a compression unit for compressing image data output from the buffer memory to generate compression data, a hard disk for storing the compression data compressed by the compression unit, and output unit for outputting compression data from the hard disk to the buffer memory, and an expansion unit for expanding the compression data output from the buffer memory and outputting the expansion data to the printer unit. When printing multiple copies, image data are highly compressed and stored on a hard disk, and output directly to a buffer memory in a highly compressed state. Thereafter, the data are expanded and transmitted to the printer. As a result, multiple copy printing is accomplished at high speed.

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Toyokawa, Japan

Junji Nishigaki