Canon Kabushiki Kaisha

Masahide Kotera

Norio Hashimoto

Satoshi Ono

Motofumi Konishi

Toshio Iwaya

Yasutoshi Sugita

Kanou Tanaka

Yoshio Ando

Yoshitaka Sano

Seiichiro Satomura

There is disclosed an image processing system capable of effectively utilizing a large-sized display unit by expanding the image signals to be displayed.

Image processing system

There is disclosed an image processing system composed of a network of plural stations, in which the transmitted image signals can be monitored on real time basis, always utilizing the full image display area and without lack in the displayed image, by suitably converting the image signals.

An apparatus for reading a microfilmed image to obtain digital image signal, in which the level of quantizing is determined by measuring the density of image and of background.

Apparatus for reading a film image with controllable illumination and

An image processing system has an original reader or an image file for generating an image signal, a soft display, a high-speed printer, a small printer, a work station with a CPU, and a switching device. An image can always be displayed or printed at the center of a display surface or of a recording medium irrespective of a difference in the image and the display surface or recording medium.

An image signal processing apparatus has a CCD for reading an image, a peak detector circuit for detecting a peak value of changes in an analog image signal received from the CCD, a slice level memory circuit for storing a fixed slice level, a comparator, and a slice level change circuit for setting a proper slice level for the image signal. Thickening of a character image or the like is prevented, allowing satisfactory readout of a microfilm image.

Image signal processing apparatus

An image processing system transmits image information in the form of electrical signals among plural stations for processing. A switching unit is provided to supply plural sets of signals to the plural stations in a parallel manner, thus achieving efficient signal transmission.

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Yokohama, Japan

Masahide Kotera