Abstract:
An apparatus for measuring attributes such as color, thickness and/or retro reflectivity of a road marking disposed on a road surface. The apparatus includes a vehicle that travels over the road surface. The vehicle transports a measurement system and a computer. The measurement system includes at least one subsystem, which may include a color measurement subsystem, a thickness measurement subsystem and/or a retro-reflectivity measurement subsystem. The computer receives the measurement information from the measurement system.
Abstract:
A method for correcting digitized image data in the prepress stage when using printing presses having a device-independent color profile in the main printing stage, having the following method steps: measurement of a reference sheet and production of an image file in a device-independent color space, conversion of an image file belonging to the reference sheet in a device-dependent color space into a further image file in a device-independent color space using the device-independent color profile belonging to the printing press to be used, comparison of the two device-independent image files. performing alterations on the device-dependent image file associated with the reference sheet or alteration of the printing process in the selected printing press if tolerance limits are exceeded.
Abstract:
The present invention provides for the creation and use of a non-linearized, paper specific, digital workflow independent color profile which can be used to create proofs based on the raw output data of the source process. Such a profile would have the advantage of not having to have account for the intermediate workflow steps such as linearization, color correction, sharpening, ink limiting, color separation, dithering or color transformation because the gamut mapping would utilize the discrete output tones of the resulting data sent to the source device.
Abstract:
A system and method of scanning an artifact is disclosed. A single CCD can be configured to obtain color image data for the artifact using conventional imagery, gross shape data using a three-dimensional scanning technique, and high resolution shape data using an amplitude modulated laser scanning technique. A software driven computer processor controls the CCD and a series of illumination projectors to obtain color and gross shape data for an artifact. Algorithms then determine areas of the artifact that need to be scanned at a higher resolution. These areas are then re-scanned using an amplitude modulated laser scanning system. Once the entire artifact has been scanned completely, the color, gross shape, and high resolution shape data is combined into a single image file representative of the artifact. The key advancement is the ability of the present invention to dynamically determine areas of the artifact that require high resolution scans. Thus, only portions of the artifact need to be laboriously scanned while the gross shape data for the rest of the artifact suffices. The result is a significant reduction in time and storage requirements for creating and archiving image files for artifacts.
Abstract:
The following procedures are included: a procedure (1) for measuring a metallic paint color by a multi-angle spectrophotometer and storing the multi-angle colorimetric value Lab* of the paint color, a color classification code to which the paint color belongs, and a computer graphic image in a memory of a computer and a procedure (2) for calling a metallic paint color to be retrieved (this is referred to as the metallic paint color concerned) from the memory by using a paint color name as a keyword. Moreover, in the case of a new color not stored in the memory, the color is measured by a multi-angle spectrophotometer and stored in the memory in accordance with the procedure (1). A screening function (3) is included which previously narrows down paint colors whose approximate colors will be computed by using color classification codes when computing an approximate color of the metallic color concerned.
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.
Abstract:
A process for selecting similar colors is disclosed. The process includes the steps of (i) inputting a first color co-ordinates of a first color, and (ii) selecting a color having second color co-ordinates that are similar with respect to the first color co-ordinates, and (iii) displaying a first color area for the first color on a screen, and (iv) displaying a second color areas for the second color on the screen, and (v) selecting one of the second color areas, and (vi) shifting the selected second color area to a region of the first color area to produce a color edge. Also disclosed are a computer program product having programming means for executing the relevant steps and a computer system comprising relevant means.
Abstract:
Color measuring systems and methods are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe with respect to the object being measured. Under processor control, the color measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention.
Abstract:
A method to change the color of hair. The method includes measuring an initial reflectance spectrum of a sample of the hair and analyzing a contribution of a plurality of natural hair factors to the initial reflectance spectrum. The method also includes calculating a hair treatment based on another reflectance spectrum. A system to measure a reflectance spectrum of a sample includes an integrating sphere having a sampling port and an inner surface and a window disposed near to the sampling port. The window is configured for being placed in close contact with the sample. The system also includes a light source configured to project light onto the sample via the window and a light detector configured to analyze light reflected from the inner surface to produce the reflectance spectrum of the sample.
Abstract:
Under the conditions that there are 2 or more samples produced in a CCM toning or visual toning process by which colors are adapted to the target color and respective components such as a coloring agent defining the sample color are registered in a CCM system, the reproducibility of the samples is evaluated based on the difference nullRnulln (n denotes a sample number) between spectral reflectance RSTnulln obtained by actually measuring the respective samples and spectral reflectance RPRnulln obtained by the CCM simulation corresponding to the coloring agent recipe for the sample color at the same n, and determination whether toning work should be continued or not is rapidly and simply performed. On the other hand, when an abnormal sample is perceived, the difference nullRnullnullb of the sample obtained from the specified equations is determined and, by comparison of the difference between the target color and a color of a toning sample in the color matching process, components such as a coloring agent mixed into the abnormal sample is presumed and its mixed amount is presumed.