public unsafe ImageRgb24 ToImageRgb24WithRamdomColorMap()
{
ImageRgb24 img = new ImageRgb24(this.Width, this.Height);
Random r = new Random();
int length = this.Length;
Dictionary <int, Rgb24> map = new Dictionary <int, Rgb24>();
for (int i = 0; i < length; i++)
{
int val = this[i];
if (map.ContainsKey(val))
{
img[i] = map[val];
}
else
{
Rgb24 newRgb = new Rgb24();
newRgb.Red = (byte)(r.Next(256));
newRgb.Green = (byte)(r.Next(256));
newRgb.Blue = (byte)(r.Next(256));
img[i] = newRgb;
map.Add(val, newRgb);
}
}
return(img);
}
public override IImage Clone()
{
ImageRgb24 img = new ImageRgb24(this.Width, this.Height);
img.CloneFrom(this);
return(img);
}
public unsafe ImageRgb24 ToImageRgb24()
{
ImageRgb24 img = new ImageRgb24(this.Width, this.Height);
UnmanagedImageConverter.ToRgb24((Lab24 *)this.StartIntPtr, img.Start, img.Length);
return(img);
}
public unsafe ImageLab24(ImageRgb24 img)
: base(img.Width, img.Height)
{
int length = img.Length;
UnmanagedImageConverter.ToLab24(img.Start, (Lab24 *)this.StartIntPtr, length);
}
public unsafe void ApplyMedianFilter(int medianRadius)
{
if (medianRadius > 0)
{
// 进行中值滤波
using (ImageRgb24 copy = this.Clone() as ImageRgb24)
{
int size = medianRadius * 2 + 1;
int count = 0;
byte[] r = new byte[size * size];
byte[] g = new byte[size * size];
byte[] b = new byte[size * size];
int height = this.Height;
int width = this.Width;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
count = 0;
for (int h = -medianRadius; h <= medianRadius; h++)
{
for (int w = -medianRadius; w <= medianRadius; w++)
{
int hh = y + h;
int ww = x + w;
if (hh >= 0 && hh < height && ww >= 0 && ww < width)
{
Rgb24 c = copy[hh, ww];
r[count] = c.Red;
g[count] = c.Green;
b[count] = c.Blue;
count++;
}
}
}
Array.Sort(r, 0, count);
Array.Sort(g, 0, count);
Array.Sort(b, 0, count);
int m = count >> 1;
Rgb24 median = new Rgb24 {
Red = r[m], Green = g[m], Blue = b[m]
};
this[y, x] = median;
}
}
}
}
}
public void TestConvertRgb24Image()
{
String imgPath0 = "..\\images\\yilagou_1280_720_24.jpg";
Bitmap map = new Bitmap(imgPath0);
Color c = map.GetPixel(0, 0);
Console.WriteLine(c.ToString());
ImageRgb24 r = new ImageRgb24(map);
Rgb24 cr = r[0, 0];
Console.WriteLine(cr.ToString());
Bitmap to = r.ToBitmap();
Color tc = to.GetPixel(0, 0);
Console.WriteLine(tc.ToString());
Assert.AreEqual(c.R, cr.Red);
Assert.AreEqual(c.G, cr.Green);
Assert.AreEqual(c.B, cr.Blue);
Assert.AreEqual(c.R, tc.R);
Assert.AreEqual(c.G, tc.G);
Assert.AreEqual(c.B, tc.B);
}
