Abstract:
In order to present in a system with a distal server displaying a virtual color image in the form of an image file comprising individual color values on its website, and with a proximal computer connected to the server and comprising a display unit (D), said computer displaying on its display unit (D) the virtual color image of the server by means of an application program, products on the display unit (D) in the most optimum colors possible, the following is proposed: [a] a reference card (K) is held in front of the computer, said reference card (K) comprising several differently colored translucent reference areas (T1, T2, T3) besides a transparent or translucent area or an opening (G), [b.1] the application program then starts a routine on the server and/or on the computer, said routine firstly outputting a first shade, for example cyan, with a first of the color values, said first shade being complementary to the color, for example red, of one (T1) of the translucent reference areas (T1, T2, T3) of the reference card (K), [b.2] the reference card (K) having that translucent reference area (T1) whose color is complementary to the first shade displayed on the display unit (D) is then held in front of said first shade, and an identifier is determined and stored for that (T1) of the translucent reference areas (T1, T2, T3) for which the shade of grey resulting from color mixture of the first shade and the translucent reference area (T1) comes closest to a shade of grey displayed on the display unit (D) and falling through the area or the opening (G), [c] the step [b.1] and the step [b.2] are repeated at least once to output a second shade, for example magenta, of a second of the color values, said second shade being complementary to the color, for example green, of another (T2) of the translucent reference areas (T1, T2, T3) of the reference card (K), and to determine and store the identifier of said other (T2) of the translucent reference areas (T1, T2, T3), [d] the identifiers of the reference areas (T1, T2, T3) determined in the preceding steps [b.1], [b.2], [c] and stored on the server and/or on the computer are input in this order into a color correction program started on the server and/or on the computer, and [e] for each image file sent by the server the color correction program is used to adjust the virtual color image for each color value included in the image file by applying the identifiers used as correction values whereby said virtual color image is displayed in colors optimized in respect of its recording conditions.
Abstract:
A method and system for measuring a colour value of a target comprising a mobile communication device having a camera with a sensor arranged to detect wavelengths of incident light reflected from an illuminated target. The mobile communication device also has a processor arranged to measure a colour value of the target based on the detected wavelengths received from the sensor, and to output the measured colour value of the target for display on a display of the mobile communication device.
Abstract:
Display of a harmony rule list is disclosed, including obtaining at least one base color and two or more color harmony rules; for each color harmony rule, computing a derived set of colors based on the at least one base color and the color harmony rule, resulting in two or more derived sets of colors; and simultaneously displaying the derived sets of colors for the two or more color harmony rules.
Abstract:
A colour selection system is provided which comprises a memory for storing grouping information which categorises each of a plurality of colours into one of a plurality of colour groups. In response to an initial colour selection made by a user, the system determines the group in which the selected colour belongs and generates a selection of colours, using colours which belong to the determined group, from which a user can select one or more further colour in addition to the initially selected colour. The groups of colours are chosen so that the user can only select colours which are deemed to be nullharmoniousnull with each other.
Abstract:
A paint color matching and coordinating system comprises an interface for receiving an input reference color, a processor capable of reading a memory, a memory including (1) instructions readable by the processor and (2) a database of architectural paint colors spanning all or most of the known color space, and a display generator. In use, the interface of the system receives an input reference color from a user. The processor selects a nullreference paint colornull from the database, the reference paint color being visually closer, with respect to color space, to the input reference color than any other paint color in the database. According to the invention, color space is divided into a plurality of fixed, generally equally sized, non-overlapping, contiguous portions, each color space portion being defined as the space of all colors within a band of hues within color space. The processor selects five sets of paint colorsnullone set from each of the color space portions that include the five hues that comprise the nullfive-way harmonynull of the reference paint color. The processor may also select a sixth set of paint colors from the color space portion that includes the hue of the reference paint color. Finally, the processor directs the display generator to create a display of color samples of the reference paint color and of the first through sixth sets of paint colors.
Abstract:
A system and method for calculating harmonizing colors based on a reference color. In a first embodiment, the invention includes (a) defining a reference color in a uniform color space, (b) converting the hue of the reference color from the uniform color space to an artists color wheel, (c) determining harmonizing colors for the reference color within the artists color wheel, (d) converting the hues of the harmonizing colors from the artists color wheel to the uniform color space, and (e) displaying the harmonizing color information. In a second embodiment, a brown region is defined for colors having red/orange/yellow hues and low chroma values. Additional harmonizing colors are determined when either the reference color or one of the harmonizing colors falls within the brown region.
Abstract:
A method and apparatus for determining the condition of a test subject based on color uses a color measuring instrument to detect change in a color factor indicative of a condition such as a disease, spoilage, ageing, etc. A medical condition such as bilirubinemia that affects skin color can be detected. One measures color factors such as Hunter b and L in the subjects' skin color. For predetermined ranges of one color factor, in particular L, changes in the other color factor, e.g. Hunter b, above predetermined levels are indicative of the medical condition. In many cases, a single measurement of the color factors can be utilized as a warning of the likelihood of the medical or contaminated condition, if the ordinary range of the color factor is known for healthy individuals with skin coloration like that of the test subject. Even if there has been no baseline measurement and the test subject's color is such that a single reading of one or two color factors will not warn of the possible presence of the medical condition or contamination, sequential readings can indicate the presence or absence of the condition based upon changes in the measured color factor, or lack of changes. The color measuring techniques apply to a wide range of biological test subjects (e.g. hair, teeth, tissue, excretions, foods, soil, animals, plants).