Abstract: A sensor for measuring reflective, transmissive, or self-luminous samples, comprises a plurality of light sources, where each of the light sources emit light of a substantially different wavelength band spaced in the visible spectrum; a reference channel photodetector; a sample channel photodetector; an optical cap adapted to direct a first portion of the light emitted by each of the light sources to the reference channel photodetector, a reflector cone for directing a second portion of the light emitted by each of the light sources to the sample; and a receptor piece for directing the diffuse portion of the light reflected from the sample to the sample channel photodetector. Preferably, the reference channel and sample channel photodetectors are identical devices and are mounted back-to-back to share environmental characteristics, and in turn, minimize the variation between their respective responses.

Abstract: A sensor for measuring reflective, transmissive, or self-luminous samples, comprises a plurality of light sources, where each of the light sources emit light of a substantially different wavelength band spaced in the visible spectrum; a reference channel photodetector; a sample channel photodetector; an optical cap adapted to direct a first portion of the light emitted by each of the light sources to the reference channel photodetector; a reflector cone for directing a second portion of the light emitted by each of the light sources to the sample; and a receptor piece for directing the diffuse portion of the light reflected from the sample to the sample channel photodetector. Preferably, the reference channel and sample channel photodetectors are identical devices and are mounted back-to-back to share environmental characteristics, and in turn, minimize the variation between their respective responses.

Abstract: A hand-manipulatable device includes a sensor for gathering reflective, densitometric, spectrophotometric, colorimetric, self-luminous or radiometric readings from a sample surface. The device includes a housing having a substantially flat bottom surface and a top surface contoured to fit comfortably in the fingers and palm of the human hand. The housing also includes area on its top surface for seating an index finger of the human hand. Positioned within this area is a pressure-activated switch that is operatively coupled to the sensor circuitry for performing the readings. Preferably, the sensor is mounted into the device such that the focal aperture of the sensor is in axial alignment with the pressure-activated switch. Accordingly, a user will be able to use the device to "point" with his or her index finger to an area of the sample surface, and will then simply press the switch to initiate the readings, using the same index finger.

Abstract: A process is provided for creating a high resolution copy of a target video frame selected from a sequence of video frames, wherein each video frame comprises two interlaced fields.

Abstract: Apparatus for utilizing microencapsulated media material includes a cartridge which contains a supply of the material, including a supply spool. The supply spool is wound as a two-layer sandwich which includes a donor web carrying the microencapsulated photosensitive material would in face-to-face relation with receiver material, in which the donor web forms the radial outer layer of the composite and the receiver material forms the radial inner layer. The donor web is formed with a clear base through which the photosensitive layer may be imaged, by drawing the composite from the spool past an exposure station formed as a slit in the cartridge. Thereafter, the composite is processed between a pair of developer rolls, one of which is formed as part of the cartridge. The donor web is then wound on a spool in the cartridge while the receiver material, carrying the image, is delivered from the cartridge.

Abstract: A method of improving image resolution by interpolation combines the concept of convolution with a parameter-controlled mask, with the concept of adjustment of the mask based on edge information. In the method, first the edge information is extracted from the original image data, and then interpolated to the size to which the original image data will be interpolated. With the guidance of the interpolated edge information, the interpolation process will produce an image with high contrast but minimal artifacts. A spline-under-tension function is applied to generate interpolated values, the function being modified for image data points located close to edges.

Abstract: A cartridge or cassette of web-type media material for delivery to utilization apparatus, such as a photocopier system, incorporates a filter which is integrated into the cartridge for filtering or absorbing fumes or gasses generated by the processing of the media material. The filter is automatically replaced and changed with the replacement of the cartridge.

Abstract: A method and apparatus are disclosed for producing an image made up of marks having varying sizes, densities and/or shapes on an imaging media. The image is generated in response to image data defining the image to be produced received by an input scanner or other input device. The image data is processed and then used to address at least one amplitude and/or pulse width modulation table to, in turn, generate amplitude and pulse width signals which controls a writing device. Marks are therefore written onto the media, such marks having varying sizes, densities and/or shapes for forming the completed image.

Abstract: A method for processing color image data converts input RGB color data to output CMY color data. An input device is calibrated to a intermediate color space, and an output device is calibrated to the intermediate color space. The input RGB color data is collected from the input device, and is converted to intermediate color space data. The intermediate color space data is converted to the output CMY color data, and is outputted to the output device. During the conversion process, the image data is processed to compensate for gamut mismatch.