private void BandCutFilterButton_Click(object sender, EventArgs e)
{
string minRangeText = rangeTextBox.Text;
string maxRangeText = rangeTextBox2.Text;
if (!string.IsNullOrEmpty(minRangeText) && !string.IsNullOrEmpty(maxRangeText))
{
int minRange = int.Parse(minRangeText);
int maxRange = int.Parse(maxRangeText);
if (minRange >= Colors.MIN_PIXEL_VALUE && minRange <= Colors.MAX_PIXEL_VALUE &&
maxRange >= Colors.MIN_PIXEL_VALUE && maxRange <= Colors.MAX_PIXEL_VALUE)
{
Complex[][] filteredData = FourierUtil.BandCutFilter(_originalComplexData, minRange, maxRange);
_processedComplexData = filteredData;
}
else
{
_processedComplexData = FourierUtil.CopyComplexArray(_originalComplexData);
}
}
else
{
_processedComplexData = FourierUtil.CopyComplexArray(_originalComplexData);
}
Bitmap resultBitmap = Effect.IfftTransform(_processedComplexData);
SetProcessedBitmap(resultBitmap);
}
private void HighPassEdgeDetectionFilterButton_Click(object sender, EventArgs e)
{
string sectorWidthText = sectorWidthTextBox.Text;
string rotationAngleText = rotationTextBox.Text;
string rangeText = rangeTextBox.Text;
if (!string.IsNullOrEmpty(sectorWidthText) &&
!string.IsNullOrEmpty(rotationAngleText) &&
!string.IsNullOrEmpty(rangeText))
{
int sectorWidth = int.Parse(sectorWidthText);
int rotationAngle = int.Parse(rotationAngleText);
int range = int.Parse(rangeText);
if (sectorWidth >= 0 &&
sectorWidth <= _originalBitmap.Width &&
Math.Abs(rotationAngle) >= 0 && Math.Abs(rotationAngle) <= 360 &&
range >= Colors.MIN_PIXEL_VALUE &&
range <= Colors.MAX_PIXEL_VALUE)
{
int[,] mask = Effect.GenerateEdgeDetectionMask(_originalBitmap.Width, _originalBitmap.Height, sectorWidth, rotationAngle);
Bitmap bitmap = new Bitmap(_originalBitmap.Width, _originalBitmap.Height);
for (int i = 0; i < bitmap.Width; i++)
{
for (int j = 0; j < bitmap.Height; j++)
{
if (mask[i, j] == Colors.MIN_PIXEL_VALUE)
{
bitmap.SetPixel(i, j, Color.Black);
}
else
{
bitmap.SetPixel(i, j, Color.White);
}
}
}
bitmap.Save("detMask.bmp", System.Drawing.Imaging.ImageFormat.Bmp);
Complex[][] filteredData = FourierUtil.HighPassEdgeDetectionFilter(mask, _originalComplexData, range);
_processedComplexData = filteredData;
}
}
else
{
_processedComplexData = FourierUtil.CopyComplexArray(_originalComplexData);
}
Bitmap resultBitmap = Effect.IfftTransform(_processedComplexData);
SetProcessedBitmap(resultBitmap);
}
private void PhaseSpectrumFilterButton_Click(object sender, EventArgs e)
{
string kComponentText = kComponentTextBox.Text;
string lComponentText = lComponentTextBox.Text;
if (!string.IsNullOrEmpty(kComponentText) && !string.IsNullOrEmpty(lComponentText))
{
int kComponent = int.Parse(kComponentText);
int lComponent = int.Parse(lComponentText);
Complex[][] filteredData = FourierUtil.PhaseSpectrumFilter(_originalComplexData, kComponent, lComponent);
_processedComplexData = filteredData;
}
else
{
_processedComplexData = FourierUtil.CopyComplexArray(_originalComplexData);
}
Bitmap resultBitmap = Effect.IfftTransform(_processedComplexData);
SetProcessedBitmap(resultBitmap);
}