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Map And Color The Decision Support System To Establish And Color Transfer Application Of The Theory

Posted on:2002-02-07Degree:DoctorType:Dissertation
Country:ChinaCandidate:R Z ShiFull Text:PDF
GTID:1110360032953235Subject:Cartography and Geographic Information Engineering
Abstract/Summary:PDF Full Text Request
The thesis focused on the color display and the transformation of color space of the digital map publishing, the method of color gamut compression, the reason and solve scheme of color distortion. According to the need of the map publishing production of the military, we developed a Mapcolor Design Assistance Decision System, which include the special map color design, classific effect evaluation of map color design and color management functions. The thesis mainly studied how to applying the color transformation theory to map publishing system to consurmnate the function of the map publishing system.Color space transformation is to transform color space which are related to device, RUB and CMYK, to the color space which are not related to device, CLE L*ab*. And use L*a*b* color space to realize the transformation between each color spaces. The method which we adopted mainly are matrix calculation, physical model (demishel model and coaxial model), black model, look-up- -table interpolation transformation (cube interpolation, prism interpolation, tetrahedron interpolation), etc..Color Gamut compression is compressing one color space extension to another one. Color Gamut compression are carried out in color space CIE Lab?color space The mainly processing methods are colorimetric matching (applying to graph), saturation matching (applying to high colored image), perceptual matching (applying to continuum image), relative matching (applying to low colored image) etc..After the process of the color space transformation and color gamut compression, the degree of hat you see is what you get?in the process of transformation can be evaluated by the following methods: the subjective evaluation method based on color sense, the color measurement evaluation method based on the measurement, the memory evaluation method based on the preferred color, the objective evaluation method based on the parsed measurement, the objective evaluation method based on the statistic measurement. Each evaluation method can give the color reappearance a qualitative or quantitative value from different point of view.The color transformation theory are applied to the Mapcolor Design Assistance Decision System which are developed based on MAPGIS. The color management module of this system can set up the model for the color space transformation, and produce the corresponding relation of color space coordinate with high accuracy. The color management level can compare with Photoshop.The color design module are developed based on the digital map cartography and publishing. It can realize interactive or automatic color design of some kind of maps, such as isoline maps, equal type maps, regionalism maps, in which the color design of the isoline map can be carried out with the support of the expert color design scheme.The classiflc effect evaluation of map color design module are designed based on the map color design and color mentality perceive theory. Through describe the test result in quantitatively, the subjective evaluation can be quantitated, it is a noveller skill in the visual evaluation theories.
Keywords/Search Tags:Map Publishing, Color Management, Color Space Transformation, Color Gamut Map, Color Design, Classific Effect Evaluation, What You See is What You Get
PDF Full Text Request
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