This is a “colour map” with a consistent scale that can usefully be used to measure the distance, in colour terms, that a light source has shifted over time. Chromatic Vision Simulator is a color vision simulation tool which simulates the color vision of color vision deficiencies. Notice that the McAdam ellipses are now of almost identical size right across the diagram.
L (Lightness) menunjukkan tingkat terangnya suatu warna dimana 0 menunjukkan warna hitam dan 100 menunjukkan warna putih. If the CIE1931 colour space diagram was a map, then its scale would vary from one side to the other and from top to bottom – not very useful if one is trying to measure the distance on the ground between two points.įor this reason the CIE developed a new colour space diagram in 1976. Penggunaan pengukuran menggunakan L ab perlu dikembangkan dan dipelajari lebih mendalam karena pengukuran ini masih terbilang baru. Notasi L menyatakan parameter kecerahan ( lightness) dengan nilai L adalah 0 berarti hitam dan 100 berarti putih. Misalkan (G) k, ini berarti titiktitik di G paling kurang diwarnai dengan k warna dan tidak dapat diwarnai dengan k 1 warna. Compare the two charts shown here – on the 1931 chart the ellipses are of different sizes in different areas of the chart. ini mempunyai sistem notasi warna hunter (sistem warna L, a, dan b). Bilangan kromatik dari G dinotasikan dengan (G). The easiest way to see this is to compare McAdam ellipses on the CIE1931 diagram with the same elipses on the CIE1976 diagram.Ī McAdam ellipse describes an area on a colour chart inside which the average human eye can discern no colour difference – the colour at the top, bottom, left or right of the elipse appears to be the same. The CIE 1931 diagram is not suitable for measuring chromaticity shift because it is not scaled to the way the human eye works. The CIE 1976 diagram is always used because it corrects the chief deficiency of the CIE 1931 diagram. Bilangan kromatik dominasi dari graf hasil operasi korona Lingkaran ( ) dengan Lintasan ( ) ditentukan oleh order Lingkaran ( ) sebab Lintasan ( ) minimal harus diwarnai dengan 2 warna sedangkan Lingkaran ( ) minimal harus diwarnai sebanyak m warna agar memenuhi sifat kromatik dominasi minimum. On the graph below, from a typical LM80 report these are summed and presented on the vertical axis as DELTA u’v’. The colour shift is presented as the change to the position of the observed colour on the horizontal (u) and vertical (v) axes. Menentukan bilangan kromatik diawali dengan. Measuring chromaticity shift – CIE1931 v CIE 1976 When chromaticity shift is quantified in an LM80 report it is done with reference to the CIE 1976 diagram. Bilangan kromatik chi(G) adalah jumlah minimum warna yang digunakan untuk mewarnai titik pada graf G.
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