A color imaging system in which the lamp spectrum is tuned so that, in the charge coupled device, the signal to noise ratio is maximized for all three RGB channels equally. This result is obtained by a process wherein the fluorescent lamp output is adjusted by alteration of the relative amounts of red, green and blue phosphors which coat the inside surface of the lamp. In this manner, when the lamp spectrum is tuned so that the RGB channels of the CCD have equal levels when scanning a white back...

A method and apparatus for compressing a color image by reducing the amount of color information initially acquired. The color information can later be restored by interpolation from other portions of the image where the color information is available. This not only reduces the amount of data that needs to be stored, but improves the scanning time for an image scanner by reducing the amount of time needed to scan the image. In a preferred embodiment, both the scanning time and the amount of data...

Image sensing and processing apparatus for use in an image facsimile system in which a subject is sensed in its primary red, green and blue colors as well as its complementary cyan, magenta and yellow colors to provide full color correction or enhancement as a function of color matrixing each primary color with its respective complementary color.

Image sensing and processing apparatus in which the different colors of a subject are sensed to provide a high resolution electrical color separation signal and a low resolution electrical color separation signal. An enhanced high resolution electrical color separation signal is thereafter provided as a function of the color matrixing of the low resolution electrical color separation signals with the high resolution electrical color separation signals.

A color image scanning apparatus is disclosed which includes: an image sensor for scanning an original, the image sensor including a plurality of line sensors arranged in a sub-scanning direction; a determination circuit for determining the traveling speed of the image sensor in the sub-scanning direction in accordance with a magnification ratio of the original; a driving circuit for moving the image sensor in the sub-scanning direction at the speed determined by the determination circuit; a cor...

A color image reading device for reading a document image imaged on a line image sensor, wherein the line image sensor is a CCD including a first pixel line consisting of pixels having a first reading spectral characteristic and a second pixel line consisting of pixels having the second and third reading spectral characteristics arranged alternately; a two-layer dichroic mirror is provided on the CCD, said optical element for generating double images of an optical image corresponding to said fir...

A facsimile transmitter includes a lamp for directing a light beam toward a scanner which reflects the light onto a document to be reproduced, picks up the light reflected from the document and directs such light to a photomultiplier operable to send to a reproducing recorder as electrical signal proportional to the intensity of the light and the shade value of the document. The lamp is accurately pre-located and pre-mounted in a permanent holder which is detachably secured to a lamp housing and...

A method for generating a printable report is disclosed. The method includes executing program instructions obtained from a host computer on a client computer remote from the host computer to generate reportable data; creating a report document including the reportable data on the client computer; and creating a virtual address corresponding to the location of the report on the client computer.

Charges are transferred from vertical charge transfer devices of a solid-state image sensing device to horizontal charge transfer device via buffer storage cells. Charges obtained from a unessential area out of the transferred charges are discarded by operating the horizontal charge transfer device, and charges obtained from a specific area out of the transferred charges are normally read out by operating the horizontal charge transfer device. When there is a remaining charge in the horizontal c...

In a digital still camera (DSC) a plurality of individual RGB filter elements each overly a corresponding one of a plurality of photosensitive elements of an image sensor such as an array of charge-coupled devices (CCDs). A coated mirror is positioned along a light path between a lens and the image sensor for shifting the light transmitted through the lens so that a portion of the incident light that would otherwise fall on a single photosensitive element is divided between at least two adjacent...