Abstract:
An object is to represent the difference of colors of a vital tooth and a tooth sample in a highly precise manner and to compare the colors in a relatively easy manner. The invention provides a dental colorimetry apparatus including a shade-guide-information storage unit configured to store acquired image data of a tooth sample and calorimetric information of each pixel acquired on the basis of the acquired image data; a pixel extracting unit configured to acquire reference calorimetric information used as a reference when carrying out a comparison with the vital tooth, to compare the reference calorimetric information and the calorimetric information for each pixel of the tooth sample, and to extract pixels whose comparison results satisfy a predetermined condition; an image-generating unit configured to create a sample comparison image in which a third pixel group including pixels extracted by the pixel extracting unit and a fourth pixel group including pixels that are not extracted are represented by different colors; and a display device configured to display the sample comparison image created by the image-generating unit.
Abstract:
The color of a measurement object, such as a vital tooth, and the color of a comparison object to be compared with the measurement object are displayed to a user in an easily comparable manner. The invention provides an image combining apparatus including an image extracting unit for extracting an image of a vital tooth (hereinafter referred to as “measurement-object image”) from a color image of the vital tooth and extracting an image of a shade guide (hereinafter referred to as “comparison-object image”) from a color image of the shade guide, a combining-reference-line setting unit for setting combining reference lines on the measurement-object image and the comparison-object image, a combining unit for combining the measurement-object image and the comparison-object image to form a combined image, and a correction unit for correcting at least one of the measurement-object image and the comparison-object image so as to align their outlines on the combining reference line in the combined image when the outlines are not aligned.
Abstract:
A method of mapping color space with chromatic formulations, comprising the steps of (a) selecting a limited number of chromatics for use with a bulk material using selection criteria; (b) formulating the selected chromatics with white or black in the bulk material to generate a plurality of chromatic formulations, wherein such plurality of chromatic formulations populate a desirable volume of color space; and (c) computing additional chromatic formulations using algorithms reflecting the contributions of chromatics, white, and black to color, and incremental substitutions thereof. Optional steps in the method are also disclosed. The result can be a database of generated nodes and computed nodes filling desired regions or even the entirety of color space for a given polymeric bulk material. Usefulness includes the ability create, store and communicate chromatic formulations for the generated nodes, the computed nodes, or both for use anywhere in the world via electronic commerce of color matching.
Abstract:
A method for assigning a lexical classifier to characterize a visual attribute corresponding to an image element forming part of an image. The method involves capturing an initial attribute value for the image element and transforming the captured initial attribute value to a lexical classifier. Transformation involves reference to a database including a set of lexical classifiers corresponding to a particular type of visual attribute. The lexical classifier assigned to the visual attribute is recorded for display or further processing. Transformation of the initial attribute value to the lexical classifier involves application of a machine learning algorithm to the database.
Abstract:
A color measurement system includes a multi-purpose filter and optics assembly. The filter and optics assembly includes at least one tube array for segmenting received light. The segmented light is mixed and the polarization qualities of the light are modified so to minimize the effects caused by angular adjustments. A diffuser mixes the segmented light. Additionally, the color measurement system includes an ambient light attachment for collecting light from the viewing area surrounding the computer display. The ambient light collected is then analyzed, and a viewing area profile is created. The viewing area profile then can be used by software to adjust the colors displayed on the computer displays.
Abstract:
A method of visualizing a color deviation of an actual color on a vehicle panel being painted utilizing a computer. A reference color image is displayed on a monitor to confirm that the reference color image is the appropriate color image relating to the actual color. Differences between that displayed reference color image and the actual color are inputted into the computer and the reference image is then translated into a revised color image. The revised color image is displayed on the monitor along with the reference color image such that a user can visually compare the differences between that displayed reference color image and displayed revised color image. The displayed revised color image can then be compared to the actual color to determine if any color deviations between the revised color image and the actual color remain.
Abstract:
A process for refinishing or repainting a damaged paint area of a vehicle or part thereof using a computer-implemented method to determine a refinish paint formula that can be matched to the color of the original paint; in this process: a) the color data values of the original paint to be matched are determined; b) the color data values are entered into a computer containing a color cluster data base and color clusters each having a centroid and a refinish paint formula associated with each centroid; c) the color data values of the original paint are positioned in a color cluster via computer implementation and a refinish paint associated with the centroid of the color cluster having color characteristics close to the color characteristics of the original paint is obtained; and d) spray applying the refinish paint of step c) to the damaged paint area using conventional techniques thereby matching the color characteristics of the refinish paint to the undamaged original paint of the vehicle.
Abstract:
A general purpose computer system is used to run a color selection application which operates to facilitate the selection of colors and the automatic generation of palettes of harmonious colors. The application is implemented in three pages, a color selection page, a results manager page, and a color composition page. The color selection page is used to select a plurality of colors that the results manager page can operate on to generate palettes of harmoniously related colors. The color composition page is used to experiment with the colors selected and palettes generated in order to arrive at a pleasing arrangement of colors. The results manager page contains functions and palette characteristics that an artist can specify in order to automatically generate palettes that contain groups of colors that have very specific contrast relationships to previously selected colors.
Abstract:
The system provides for controlling color reproduction of input color image data representing one or more pages or page constituents in a network having nodes (or sites). Each one of the nodes comprises at least one rendering device. The system distributes the input color image data from one of the nodes to other nodes, and provides a data structure (virtual proof) in the network. This data structure has components shared by the nodes and other components present only at each node. Next, the system has means for providing color calibration data at each node characterizing output colors (colorants) of the rendering device of the node, and means for producing at each node, responsive to the color calibration data of the rendering device of the node, information for transforming the input color image data into output color image data at the rendering device of the node. The information is then stored in the data structure in different ones of the shared and other components. Means are provided in the system for transforming at each node the input color image data into output color image data for the rendering device of the node responsive to the information in the data structure. The rendering device of each node renders a color reproduction of the page constituents responsive to the output color image data, wherein colors displayed in the reproduction at the rendering device of each node appear substantially the same within the output colors attainable by the rendering devices. The system further has means for verifying at each node that the information for the rendering device of the node properly transformed the input color image data into the output color image data, and means for revising the information stored in the data structure at the node responsive to results of the verifying means. Shared components of the data structure may also store color preferences selected by a user. The information producing means of the system may further operate responsive to both the color calibration data and the color preferences. The rendering devices in the system can provide color reproductions having three or four colorants, and may provide more than four output colors (color inks).
Abstract:
Small, fast, and inexpensive in-line spectrophotometers can produce in-line spectrums of a substrate before or after printing on the substrate. In-line spectrums are generally far less complete than a reference spectrum produced with a large, slow, and expensive reference spectrophotometer. An in-line spectrum can be mapped to a reference spectrum using a variety of known algorithms. However, the mapping is erroneous when the media substrate type changes. Reference transform matrices and in-line transform matrices can correct the erroneous mapping.