/// <summary>
///
/// </summary>
/// <param name="image"></param>
/// <param name="start"></param>
/// <param name="maxEyeRadius">Should be 2-3 percent of max(width/height)</param>
/// <param name="maxPointSearchDistance">In source pixels, the max distance from 'start' from which to look for the starting point. Good default: roughly 24 display pixels.</param>
public static void MarkEye(UnmanagedImage image, Point start, int maxEyeRadius, float maxPointSearchDistance = 0)
{
int maxRadius = maxEyeRadius * 2 + (int)Math.Ceiling(maxPointSearchDistance);
//Find subset
Rectangle subset = new Rectangle(start.X - maxRadius, start.Y - maxRadius, maxRadius * 2, maxRadius * 2);
if (subset.X < 0)
{
subset.Width += subset.X; subset.X = 0;
}
if (subset.Y < 0)
{
subset.Height += subset.Y; subset.Y = 0;
}
if (subset.Right >= image.Width)
{
subset.Width -= (subset.Right - image.Width + 1);
}
if (subset.Bottom >= image.Height)
{
subset.Height -= (subset.Bottom - image.Height + 1);
}
start.X -= subset.X;
start.Y -= subset.Y;
//Skip processing if we're slightly out of bounds
if (subset.X < 0 || subset.Y < 0 || subset.Width < 0 || subset.Height < 0 || subset.Right >= image.Width || subset.Bottom >= image.Height)
{
return;
}
UnmanagedImage red = null;
try{
Point startAt = start;
using (UnmanagedImage c = new Crop(subset).Apply(image)) {
red = new RedEyeFilter(2).Apply(c);
if (maxPointSearchDistance > 0)
{
startAt = new ManualSearcher().FindMaxPixel(c, start, maxPointSearchDistance);
}
}
var fill = new AdaptiveCircleFill(red, startAt, start, maxEyeRadius * 2);
fill.FirstPass();
fill.SecondPass();
fill.CorrectRedEye(image, subset.X, subset.Y);
//fill.MarkFilledPixels(image, subset.X, subset.Y, new byte[] { 0, 255, 0, 0 });
//fill.SetPixel(image, startAt.X + subset.X, startAt.Y + subset.Y, new byte[] { 255, 255, 0, 0 });
}finally{
if (red != null)
{
red.Dispose();
}
}
}
