private object TryGetDefaultStretcher()
{
double minValue, maxValue;
if (DataType == enumDataType.Byte)
{
minValue = 0;
maxValue = 255;
}
else
{
this.ComputeMinMax(out minValue, out maxValue, true, null);
}
return(RgbStretcherFactory.CreateStretcher(DataType, minValue, maxValue));
}