/// <summary>
/// Sets the value.
/// </summary>
/// <param name="container">The container.</param>
public void SetValue(ImageContainer container)
{
this.Value = container;
}
/// <summary>
/// Converts a RGB image into grayscale 8 bit.
/// </summary>
/// <returns></returns>
public override bool Run()
{
ImageContainer inputContainer = (ImageContainer)_inputImage.Value;
byte[] data = inputContainer.Data;
byte bpp = inputContainer.BytesPerPixel;
int width = inputContainer.Width;
int height = inputContainer.Height;
byte[] destination = new byte[width * height];
if (bpp == 1) {
_outputImage.Value = _inputImage.Value;
return true;
}
unsafe {
fixed (byte* ptr = data) {
fixed (byte* destPtr = destination) {
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
byte r = ptr[(y * width + x) * bpp];
byte g = ptr[(y * width + x) * bpp + 1];
byte b = ptr[(y * width + x) * bpp + 2];
destPtr[(y * width + x)] = (byte)((r + g + b) / 3);
}
}
}
}
}
ImageContainer outContainer = new ImageContainer();
outContainer.Data = destination;
outContainer.BytesPerPixel = 1;
outContainer.Height = height;
outContainer.Width = width;
outContainer.Stride = width;
_outputImage.Value = outContainer;
return true;
}
/// <summary>
/// Sets the value.
/// </summary>
/// <param name="data">The data.</param>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <param name="bytesPerPixel">The bytes per pixel.</param>
public void SetValue(byte[] data, int width, int height, int stride, byte bytesPerPixel)
{
ImageContainer container = new ImageContainer();
container.Data = data;
container.Width = width;
container.Height = height;
container.Stride = stride;
container.BytesPerPixel = bytesPerPixel;
this.Value = container;
}
