| Gamma Property | ||||||||||
|
||||||||||
|
|
Notes
|
The gamma correction for the color space. This property is only valid for color spaces in which the ColorSpaceType is CallGray or CalRGB. Gamma is defined for each component of a calibrated color space. So for a CalGray color space it has one entry and for a CalRGB color space it has three. This means that for a CalGray color space this property will be a NumAtom and for a CalRGB color space it will be an ArrayAtom with three entries. Each gamma entry must be positive and is generally greater than or equal to one.
|
Example
|
In this example we show how to use the Gamma property with a calibrated grayscale color space.
using var doc = new Doc();
doc.Width = 80;
doc.Rect.Inset(50, 50);
var cs = new ColorSpace(doc.ObjectSoup, ColorSpaceType.CalGray);
((NumAtom)cs.Gamma).Real = 1.2;
doc.ColorSpace = cs.ID;
doc.Color.SetComponents(0.9); // gray
doc.AddOval(true);
doc.Save(Server.MapPath("examplecalgraycolorspace.pdf"));
|
