Graphics Reference
In-Depth Information
accessed by the header buttons
and are illustrated in Figure 11-18 , which is re-
produced in color in the color insert of this topic.
Histogram
TheHistogramview(lowerrightin Figure11-18 )enablesyoutoseethecorrespondencebetweencolorchannels
and luminance levels. Low to high luminance levels are represented from the left side of the graph to the right
side, and the number of pixels of each color at each luminance level is indicated by the height of the corres-
ponding vertical bar. For example, a long red bar near the right of the graph indicates that the image has a large
number of red pixels with high luminance.
Chroma Vectorscope
The Chroma Vectorscope view (lower left in Figure 11-18 ) enables you to see the distribution of colors and
saturation in your image. The points around the colored hexagon indicate the color, and the distance from the
red dot in the center indicates saturation. Each pixel in the image is represented by a point in the graph. Points
near the colored hexagon are the most-saturated pixels. The highly saturated colors in the character's hair can
be seen in a Chroma Vectorscope representation with many points distributed near the edges of the graph.
Figure 11-18 Image, Luma Waveform, Chroma Vectorscope, and Histogram views
 
 
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