public static Bitmap AddReflection(Image img, int percentage, int maxAlpha, int minAlpha)
{
percentage = percentage.Between(1, 100);
maxAlpha = maxAlpha.Between(0, 255);
minAlpha = minAlpha.Between(0, 255);
Bitmap reflection;
using (Bitmap bitmapRotate = (Bitmap)img.Clone())
{
bitmapRotate.RotateFlip(RotateFlipType.RotateNoneFlipY);
reflection = bitmapRotate.Clone(new Rectangle(0, 0, bitmapRotate.Width, (int)(bitmapRotate.Height * ((float)percentage / 100))), PixelFormat.Format32bppArgb);
}
using (UnsafeBitmap unsafeBitmap = new UnsafeBitmap(reflection, true))
{
int alphaAdd = maxAlpha - minAlpha;
float reflectionHeight = reflection.Height - 1;
for (int y = 0; y < reflection.Height; ++y)
{
for (int x = 0; x < reflection.Width; ++x)
{
ColorBgra color = unsafeBitmap.GetPixel(x, y);
byte alpha = (byte)(maxAlpha - (alphaAdd * (y / reflectionHeight)));
if (color.Alpha > alpha)
{
color.Alpha = alpha;
unsafeBitmap.SetPixel(x, y, color);
}
}
}
}
return(reflection);
}
public static Image Apply(this ConvolutionMatrix matrix, Image img)
{
int factor = Math.Max(matrix.Factor, 1);
Bitmap result = (Bitmap)img.Clone();
using (UnsafeBitmap source = new UnsafeBitmap((Bitmap)img, true, ImageLockMode.ReadOnly))
using (UnsafeBitmap dest = new UnsafeBitmap(result, true, ImageLockMode.WriteOnly))
{
int height = source.Height - 2;
int width = source.Width - 2;
ColorBgra[,] pixelColor = new ColorBgra[3, 3];
int pixel;
ColorBgra color = new ColorBgra();
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
pixelColor[0, 0] = source.GetPixel(x, y);
pixelColor[0, 1] = source.GetPixel(x, y + 1);
pixelColor[0, 2] = source.GetPixel(x, y + 2);
pixelColor[1, 0] = source.GetPixel(x + 1, y);
pixelColor[1, 1] = source.GetPixel(x + 1, y + 1);
pixelColor[1, 2] = source.GetPixel(x + 1, y + 2);
pixelColor[2, 0] = source.GetPixel(x + 2, y);
pixelColor[2, 1] = source.GetPixel(x + 2, y + 1);
pixelColor[2, 2] = source.GetPixel(x + 2, y + 2);
pixel = (((pixelColor[0, 0].Blue * matrix.Matrix[0, 0]) +
(pixelColor[1, 0].Blue * matrix.Matrix[1, 0]) +
(pixelColor[2, 0].Blue * matrix.Matrix[2, 0]) +
(pixelColor[0, 1].Blue * matrix.Matrix[0, 1]) +
(pixelColor[1, 1].Blue * matrix.Matrix[1, 1]) +
(pixelColor[2, 1].Blue * matrix.Matrix[2, 1]) +
(pixelColor[0, 2].Blue * matrix.Matrix[0, 2]) +
(pixelColor[1, 2].Blue * matrix.Matrix[1, 2]) +
(pixelColor[2, 2].Blue * matrix.Matrix[2, 2])) / factor) + matrix.Offset;
if (pixel < 0) pixel = 0;
else if (pixel > 255) pixel = 255;
color.Blue = (byte)pixel;
pixel = (((pixelColor[0, 0].Green * matrix.Matrix[0, 0]) +
(pixelColor[1, 0].Green * matrix.Matrix[1, 0]) +
(pixelColor[2, 0].Green * matrix.Matrix[2, 0]) +
(pixelColor[0, 1].Green * matrix.Matrix[0, 1]) +
(pixelColor[1, 1].Green * matrix.Matrix[1, 1]) +
(pixelColor[2, 1].Green * matrix.Matrix[2, 1]) +
(pixelColor[0, 2].Green * matrix.Matrix[0, 2]) +
(pixelColor[1, 2].Green * matrix.Matrix[1, 2]) +
(pixelColor[2, 2].Green * matrix.Matrix[2, 2])) / factor) + matrix.Offset;
if (pixel < 0) pixel = 0;
else if (pixel > 255) pixel = 255;
color.Green = (byte)pixel;
pixel = (((pixelColor[0, 0].Red * matrix.Matrix[0, 0]) +
(pixelColor[1, 0].Red * matrix.Matrix[1, 0]) +
(pixelColor[2, 0].Red * matrix.Matrix[2, 0]) +
(pixelColor[0, 1].Red * matrix.Matrix[0, 1]) +
(pixelColor[1, 1].Red * matrix.Matrix[1, 1]) +
(pixelColor[2, 1].Red * matrix.Matrix[2, 1]) +
(pixelColor[0, 2].Red * matrix.Matrix[0, 2]) +
(pixelColor[1, 2].Red * matrix.Matrix[1, 2]) +
(pixelColor[2, 2].Red * matrix.Matrix[2, 2])) / factor) + matrix.Offset;
if (pixel < 0) pixel = 0;
else if (pixel > 255) pixel = 255;
color.Red = (byte)pixel;
color.Alpha = pixelColor[1, 1].Alpha;
dest.SetPixel(x + 1, y + 1, color);
}
}
}
return result;
}
public static Image Apply(this ConvolutionMatrix matrix, Image img)
{
int factor = Math.Max(matrix.Factor, 1);
Bitmap result = (Bitmap)img.Clone();
using (UnsafeBitmap source = new UnsafeBitmap((Bitmap)img, true, ImageLockMode.ReadOnly))
using (UnsafeBitmap dest = new UnsafeBitmap(result, true, ImageLockMode.WriteOnly))
{
int height = source.Height - 2;
int width = source.Width - 2;
ColorBgra[,] pixelColor = new ColorBgra[3, 3];
int pixel;
ColorBgra color = new ColorBgra();
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
pixelColor[0, 0] = source.GetPixel(x, y);
pixelColor[0, 1] = source.GetPixel(x, y + 1);
pixelColor[0, 2] = source.GetPixel(x, y + 2);
pixelColor[1, 0] = source.GetPixel(x + 1, y);
pixelColor[1, 1] = source.GetPixel(x + 1, y + 1);
pixelColor[1, 2] = source.GetPixel(x + 1, y + 2);
pixelColor[2, 0] = source.GetPixel(x + 2, y);
pixelColor[2, 1] = source.GetPixel(x + 2, y + 1);
pixelColor[2, 2] = source.GetPixel(x + 2, y + 2);
pixel = (((pixelColor[0, 0].Blue * matrix.Matrix[0, 0]) +
(pixelColor[1, 0].Blue * matrix.Matrix[1, 0]) +
(pixelColor[2, 0].Blue * matrix.Matrix[2, 0]) +
(pixelColor[0, 1].Blue * matrix.Matrix[0, 1]) +
(pixelColor[1, 1].Blue * matrix.Matrix[1, 1]) +
(pixelColor[2, 1].Blue * matrix.Matrix[2, 1]) +
(pixelColor[0, 2].Blue * matrix.Matrix[0, 2]) +
(pixelColor[1, 2].Blue * matrix.Matrix[1, 2]) +
(pixelColor[2, 2].Blue * matrix.Matrix[2, 2])) / factor) + matrix.Offset;
if (pixel < 0)
{
pixel = 0;
}
else if (pixel > 255)
{
pixel = 255;
}
color.Blue = (byte)pixel;
pixel = (((pixelColor[0, 0].Green * matrix.Matrix[0, 0]) +
(pixelColor[1, 0].Green * matrix.Matrix[1, 0]) +
(pixelColor[2, 0].Green * matrix.Matrix[2, 0]) +
(pixelColor[0, 1].Green * matrix.Matrix[0, 1]) +
(pixelColor[1, 1].Green * matrix.Matrix[1, 1]) +
(pixelColor[2, 1].Green * matrix.Matrix[2, 1]) +
(pixelColor[0, 2].Green * matrix.Matrix[0, 2]) +
(pixelColor[1, 2].Green * matrix.Matrix[1, 2]) +
(pixelColor[2, 2].Green * matrix.Matrix[2, 2])) / factor) + matrix.Offset;
if (pixel < 0)
{
pixel = 0;
}
else if (pixel > 255)
{
pixel = 255;
}
color.Green = (byte)pixel;
pixel = (((pixelColor[0, 0].Red * matrix.Matrix[0, 0]) +
(pixelColor[1, 0].Red * matrix.Matrix[1, 0]) +
(pixelColor[2, 0].Red * matrix.Matrix[2, 0]) +
(pixelColor[0, 1].Red * matrix.Matrix[0, 1]) +
(pixelColor[1, 1].Red * matrix.Matrix[1, 1]) +
(pixelColor[2, 1].Red * matrix.Matrix[2, 1]) +
(pixelColor[0, 2].Red * matrix.Matrix[0, 2]) +
(pixelColor[1, 2].Red * matrix.Matrix[1, 2]) +
(pixelColor[2, 2].Red * matrix.Matrix[2, 2])) / factor) + matrix.Offset;
if (pixel < 0)
{
pixel = 0;
}
else if (pixel > 255)
{
pixel = 255;
}
color.Red = (byte)pixel;
color.Alpha = pixelColor[1, 1].Alpha;
dest.SetPixel(x + 1, y + 1, color);
}
}
}
return(result);
}
public static Bitmap AddReflection(Image img, int percentage, int maxAlpha, int minAlpha)
{
percentage = percentage.Between(1, 100);
maxAlpha = maxAlpha.Between(0, 255);
minAlpha = minAlpha.Between(0, 255);
Bitmap reflection;
using (Bitmap bitmapRotate = (Bitmap)img.Clone())
{
bitmapRotate.RotateFlip(RotateFlipType.RotateNoneFlipY);
reflection = bitmapRotate.Clone(new Rectangle(0, 0, bitmapRotate.Width, (int)(bitmapRotate.Height * ((float)percentage / 100))), PixelFormat.Format32bppArgb);
}
using (UnsafeBitmap unsafeBitmap = new UnsafeBitmap(reflection, true))
{
int alphaAdd = maxAlpha - minAlpha;
float reflectionHeight = reflection.Height - 1;
for (int y = 0; y < reflection.Height; ++y)
{
for (int x = 0; x < reflection.Width; ++x)
{
ColorBgra color = unsafeBitmap.GetPixel(x, y);
byte alpha = (byte)(maxAlpha - (alphaAdd * (y / reflectionHeight)));
if (color.Alpha > alpha)
{
color.Alpha = alpha;
unsafeBitmap.SetPixel(x, y, color);
}
}
}
}
return reflection;
}
private static Bitmap CreateTransparentImage(Bitmap whiteBackground, Bitmap blackBackground)
{
if (whiteBackground != null && blackBackground != null && whiteBackground.Size == blackBackground.Size)
{
Bitmap result = new Bitmap(whiteBackground.Width, whiteBackground.Height, PixelFormat.Format32bppArgb);
using (UnsafeBitmap whiteBitmap = new UnsafeBitmap(whiteBackground, true, ImageLockMode.ReadOnly))
using (UnsafeBitmap blackBitmap = new UnsafeBitmap(blackBackground, true, ImageLockMode.ReadOnly))
using (UnsafeBitmap resultBitmap = new UnsafeBitmap(result, true, ImageLockMode.WriteOnly))
{
int pixelCount = blackBitmap.PixelCount;
for (int i = 0; i < pixelCount; i++)
{
ColorBgra white = whiteBitmap.GetPixel(i);
ColorBgra black = blackBitmap.GetPixel(i);
double alpha = (black.Red - white.Red + 255) / 255.0;
if (alpha == 1)
{
resultBitmap.SetPixel(i, white);
}
else if (alpha > 0)
{
white.Blue = (byte)(black.Blue / alpha);
white.Green = (byte)(black.Green / alpha);
white.Red = (byte)(black.Red / alpha);
white.Alpha = (byte)(255 * alpha);
resultBitmap.SetPixel(i, white);
}
}
}
return result;
}
return whiteBackground;
}