internal static void ApplyGreyen(
byte[] source,
byte[] destination,
BitMapFileHeader fileHeader,
BitMapInfoHeader infoHeader)
{
var sourceImage = new BasicImage(source, fileHeader, infoHeader);
var destinationImage = new BasicImage(destination, fileHeader, infoHeader);
for (int i = 0; i < infoHeader.BiHeight; i++)
{
for (int j = 0; j < infoHeader.BiWidth; j++)
{
byte average = ToByte(sourceImage[i, j, ColourPart.Red] * RedLuminance
+ sourceImage[i, j, ColourPart.Green] * GreenLuminance
+ sourceImage[i, j, ColourPart.Blue] * BlueLuminance);
destinationImage[i, j, ColourPart.Red] = average;
destinationImage[i, j, ColourPart.Green] = average;
destinationImage[i, j, ColourPart.Blue] = average;
}
}
}
internal static void ApplyKernel(
byte[] source,
byte[] destination,
double[][] kernel,
BitMapFileHeader fileHeader,
BitMapInfoHeader infoHeader)
{
var sourceImage = new BasicImage(source, fileHeader, infoHeader);
var destinationImage = new BasicImage(destination, fileHeader, infoHeader);
var lastPart = ColourPart.Alpha;
if (infoHeader.BiBitCount == 24)
{
lastPart = ColourPart.Blue;
}
for (int i = 0; i < infoHeader.BiHeight; i++)
{
for (int j = 0; j < infoHeader.BiWidth; j++)
{
for (var part = ColourPart.Red; part <= lastPart; part++)
{
double value = 0;
for (int row = 0; row < 3; row++)
{
for (int column = 0; column < 3; column++)
{
value += kernel[row][column] * sourceImage[i - 1 + row, j - 1 + column, part];
}
}
destinationImage[i, j, part] = AbsToByte(value);
}
}
}
}