Abstract:
A method is described of determining stipulated values for the production of multicolor printed copies, in particular for the production of multicolor printed copies on a printing machine working in half-tone, a reflectance desired value being assigned in the case of an original, in at least one image element having given area coverage of the individual colors to be used in the print, and this at least one reflectance desired value being used during the subsequent printing, in conjunction with a reflectance actual value, in particular for the derivation of adjustment commands for the ink feed so that the subsequently produced print satisfies the best possible color and in particular calorimetric agreement with stipulated values specified during the creation of a printed original. According to the invention, this is achieved by the image elements of the original being assigned desired color loci in each case, and from the spectra or color density spectra of the individual colors used in the subsequent print, as well as their proportion of printing area in the respective image elements, a spectrum of color density spectrum, given calorimetric assessment, yields the best possible approximation to the stipulated desired color locus.
Abstract:
An interactive dental restoration method and system for use between a dentist and a dental restoration laboratory. The method includes identifying a dental restoration need in a patient; designing a preliminary treatment plan that includes design criteria for preparation of a dental prosthesis to be placed in the patient to satisfy the dental restoration need; transmitting the preliminary treatment plan via a communications network to a dental restoration laboratory; and communicating a final treatment plan, including modifications to the preliminary treatment plan where necessary, to the dentist. The system includes a computer-based dental restoration system of a network server having a database storing information about materials, procedures and preparations concerning dental restoration prostheses; a communications network providing access to the network server; and one or more computers at a dental office accessing information stored at the database over the communications network and displaying the information in a humanly readable format. Preferably, the communications network is the Internet, and the information stored in the database comprises preparation diagrams, reduction dimensions, margin design and burs for specific dental restoration prostheses. Typically, the final treatment plan includes information about materials for preparing a dental prosthesis that satisfies the design criteria, and the dental prosthesis is then prepared for placement in the patient. This enables optimization of the dental restoration with significant savings in time and effort for the dentist, dental technician and the patient.
Abstract:
This invention provides a color matching apparatus for automotive repair paints with which the color matching of a repair paint to an existing paint, whether containing or not containing a metallic or pearlescent pigment, can be performed with high precision in a reduced number of steps even by the novice. The apparatus of the invention comprises a computer, a color data file and a database reference system.
Abstract:
An exemplary embodiment of the invention is a method for allowing a potential purchaser to specify a custom color to a vendor. The method is implemented through a potential purchaser computer coupled to a vendor host computer system by a network. The method includes receiving at the vendor host computer system a request to specify a custom color from the potential purchaser computer. The potential purchaser computer is provided with a custom color request form. The vendor host computer system receives a custom color specification from the potential purchaser computer which is based on entries in the custom color request form. An alternate embodiment of the invention is a method for selecting a color from a vendor color database in response to a standard color. The method is implemented through a potential purchaser computer coupled to a vendor host computer system by a network. The method includes receiving at the vendor host computer system a standard color from the potential purchaser computer. The vendor host computer retrieves at least one color from the vendor color database close to the standard color. The at least one vendor color close to the standard color is presented to the potential purchaser computer.
Abstract:
A system and method are provided for producing a color palette including a multitude of color patterns for a predetermined coloring process with a multitude of defined base colors and for a predetermined substrate. The individual color patterns are systematically, especially equidistantly, defined in a mathematically defined color space by the way of color coordinates describing the color space. The spectrum of the color pattern is synthesized by calculation for each color pattern in the color space by way of a color mixing model representing the predetermined coloring process and the predetermined substrate, whereby that spectrum is selected having the highest color constancy. The spectra synthesized by calculation are stored in relation to the color coordinates of the underlying color patterns. Through use of a mathematical/physical basis (such as the CIE-system), it is possible to define a visually equidistant color space and assign a spectral curve to individual points having the best color constancy.
Abstract:
A graphical image scanner scans pixelated regions of a color image to measure light intensities in a plurality of hyperspectral bandpasses for each pixel. The scanner transforms the hyperspectral bandpass intensities into device-independent color representations for each pixel, using scientific color representations, for example, as defined in CIE-31 and CIE-76 colorimetry standards as devised by the Commission Internatonale de l'Eclairage (CIE).
Abstract:
A system and method for matching a color with a corresponding color in a defined color space scans an object having the color to be matched and produces a color image data signal that is representative of the object, maps the color image data signal to the defined color space to find the corresponding color, and informs a user of the corresponding color.
Abstract:
A system and method for evaluating color scales (also called color tables, color maps, or color legends) is used in creating graphical representations of digital data, and where these graphical representations are presented for viewing on color output devices such as electronic computer displays, computer printers, etc. The problem of determining whether a particular viewing setup preserves the perceptual ordering of a given color scales as follows: The color scale is applied to a digital test pattern, and the resulting color-coded picture (also know as a nullpseudo-colorednull picture) is then viewed and rated by a human observer.
Abstract:
A method for analysing a thermal paint includes the step of defining a color space in at least two dimensions, the dimensions representing different colors and/or luminance values. The location of reference points, representing calibration data, is defined within the color space for comparison with color information relating to a part to be analysed. Each pixel of an image of the part to be analysed is given a location in color space and the nearest calibration reference point is determined. In this way, the approximate temperature of that point can be established.
Abstract:
Metallic paint colors are classified and arranged by determining the representative color of any metallic paint color; calculating the hue-tone value of said representative color; generating coating color computer graphics indicating optical properties of said metallic paint color in a prescribed range of angles of observation; and preparing a coating color map by arranging said coating color computer graphics over the hue-tone value of said representative color in a hue-tone chart on the monitor screen of a computer system.