private Bitmap filter(string ft)
{
Bitmap effect = sourceImage;
filteredImage = sourceImage;
if (ft == "none")
{
effect = sourceImage;
}
else if (ft == "grayscale")
{
effect = ApplyFilter(Grayscale.CommonAlgorithms.BT709);
}
else if (ft == "sepia")
{
effect = ApplyFilter(new Sepia());
}
else if (ft == "invert")
{
effect = ApplyFilter(new Invert());
}
else if (ft == "rotate")
{
effect = ApplyFilter(new RotateChannels());
}
else if (ft == "color")
{
effect = ApplyFilter(new ColorFiltering(new IntRange(25, 230), new IntRange(25, 230), new IntRange(25, 230)));
}
else if (ft == "hue")
{
effect = ApplyFilter(new HueModifier(50));
}
else if (ft == "saturation")
{
effect = ApplyFilter(new SaturationCorrection(0.15f));
}
else if (ft == "brightness")
{
effect = ApplyFilter(new BrightnessCorrection());
}
else if (ft == "contrast")
{
effect = ApplyFilter(new ContrastCorrection());
}
else if (ft == "hsl")
{
effect = ApplyFilter(new HSLFiltering(new IntRange(330, 30), new Range(0, 1), new Range(0, 1)));
}
else if (ft == "YCbCr")
{
YCbCrLinear f = new YCbCrLinear();
f.InCb = new Range(-0.3f, 0.3f);
effect = ApplyFilter(f);
}
else if (ft == "YCbCr")
{
effect = ApplyFilter(new YCbCrFiltering(new Range(0.2f, 0.9f), new Range(-0.3f, 0.3f), new Range(-0.3f, 0.3f)));
}
else if (ft == "threshold")
{
Bitmap originalImage = sourceImage;
// get grayscale image
sourceImage = Grayscale.CommonAlgorithms.RMY.Apply(sourceImage);
// apply threshold filter
effect = ApplyFilter(new Threshold());
// delete grayscale image and restore original
sourceImage.Dispose();
sourceImage = originalImage;
}
else if (ft == "floyd")
{
Bitmap originalImage = sourceImage;
// get grayscale image
sourceImage = Grayscale.CommonAlgorithms.RMY.Apply(sourceImage);
// apply threshold filter
effect = ApplyFilter(new FloydSteinbergDithering());
// delete grayscale image and restore original
sourceImage.Dispose();
sourceImage = originalImage;
}
else if (ft == "ordered")
{
// save original image
Bitmap originalImage = sourceImage;
// get grayscale image
sourceImage = Grayscale.CommonAlgorithms.RMY.Apply(sourceImage);
// apply threshold filter
effect = ApplyFilter(new OrderedDithering());
// delete grayscale image and restore original
sourceImage.Dispose();
sourceImage = originalImage;
}
else if (ft == "correlation")
{
effect = ApplyFilter(new Convolution(new int[,] {
{ 1, 2, 3, 2, 1 },
{ 2, 4, 5, 4, 2 },
{ 3, 5, 6, 5, 3 },
{ 2, 4, 5, 4, 2 },
{ 1, 2, 3, 2, 1 } }));
}
else if (ft == "sharpen")
{
effect = ApplyFilter(new Sharpen());
}
else if (ft == "edgedetector")
{
// save original image
Bitmap originalImage = sourceImage;
// get grayscale image
sourceImage = Grayscale.CommonAlgorithms.RMY.Apply(sourceImage);
// apply edge filter
effect = ApplyFilter(new DifferenceEdgeDetector());
// delete grayscale image and restore original
sourceImage.Dispose();
sourceImage = originalImage;
}
else if (ft == "homogenity")
{
// save original image
Bitmap originalImage = sourceImage;
// get grayscale image
sourceImage = Grayscale.CommonAlgorithms.RMY.Apply(sourceImage);
// apply edge filter
effect = ApplyFilter(new HomogenityEdgeDetector());
// delete grayscale image and restore original
sourceImage.Dispose();
sourceImage = originalImage;
}
else if (ft == "sobel")
{
// save original image
Bitmap originalImage = sourceImage;
// get grayscale image
sourceImage = Grayscale.CommonAlgorithms.RMY.Apply(sourceImage);
// apply edge filter
effect = ApplyFilter(new SobelEdgeDetector());
// delete grayscale image and restore original
sourceImage.Dispose();
sourceImage = originalImage;
}
else if (ft == "rgbLinear")
{
LevelsLinear f = new LevelsLinear();
f.InRed = new IntRange(30, 230);
f.InGreen = new IntRange(50, 240);
f.InBlue = new IntRange(10, 210);
effect = ApplyFilter(f);
}
else if (ft == "jitter")
{
effect = ApplyFilter(new Jitter());
}
else if (ft == "oilpainting")
{
effect = ApplyFilter(new OilPainting());
}
else if (ft == "gaussinblur")
{
effect = ApplyFilter(new GaussianBlur(2.0, 7));
}
else if (ft == "texture")
{
effect = ApplyFilter(new Texturer(new TextileTexture(), 1.0, 0.8));
}
return effect;
}
// On Filters->YCbCr filtering
private void yCbCrLinearFiltersItem_Click( object sender, System.EventArgs e )
{
YCbCrLinear filter = new YCbCrLinear( );
filter.InCb = new DoubleRange( -0.3, 0.3 );
ApplyFilter( filter );
yCbCrLinearFiltersItem.Checked = true;
}
