private void FormInvert_Load(object sender, EventArgs e)
{
try
{
// RGB
pictureBox1.Image = pcxOrigin.pcxImg;
pcxAfter = new ImgPcx(pcxOrigin);
// 負片
pcxAfter.Invert();
pictureBox2.Image = pcxAfter.pcxImg;
// 灰階
pictureBox3.Image = pcxGray.pcxImg;
pcxAfter = new ImgPcx(pcxGray);
// 負片
pcxAfter.Invert();
pictureBox4.Image = pcxAfter.pcxImg;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void FormInvert_Load(object sender, EventArgs e)
{
try
{
// RGB
pictureBox1.Image = pcxOrigin.pcxImg;
pcxAfter = new ImgPcx(pcxOrigin);
// 負片
pcxAfter.Invert();
pictureBox2.Image = pcxAfter.pcxImg;
// 顯示SNR值 (到小數後2位)
textBox1.Text = pcxOrigin.GetSNR(pcxOrigin, pcxAfter).ToString("f2");
// 灰階
pictureBox3.Image = pcxGray.pcxImg;
pcxAfter = new ImgPcx(pcxGray);
// 負片
pcxAfter.Invert();
pictureBox4.Image = pcxAfter.pcxImg;
// 顯示SNR值 (到小數後2位)
textBox2.Text = pcxGray.GetSNR(pcxGray, pcxAfter).ToString("f2");
// 繪製histogram
// 設定圖表的高度與圖片相同
chart1.Size = new Size(chart1.Width, pictureBox1.Image.Height);
Bitmap origin = (Bitmap)pictureBox1.Image;
Bitmap target = origin.Clone(new Rectangle(0, 0, origin.Width, origin.Height), PixelFormat.Format24bppRgb);
int w = target.Width;
int h = target.Height;
double[] yValue1 = new double[256];
double[] yValue2 = new double[256];
double[] yValue3 = new double[256];
Array.Clear(yValue1, 0, yValue1.Length);
Array.Clear(yValue2, 0, yValue2.Length);
Array.Clear(yValue3, 0, yValue3.Length);
for (int x = 0; x < w; ++x)
{
for (int y = 0; y < h; ++y)
{
Color c = target.GetPixel(x, y);
int r = c.R;
int g = c.G;
int b = c.B;
++yValue1[r];
++yValue2[g];
++yValue3[b];
}
}
// 將點個數轉換為頻率
int total = w * h * 3;
for (int i = 0; i < 256; ++i)
{
yValue1[i] /= total;
yValue2[i] /= total;
yValue3[i] /= total;
}
// Range(start, cnt)
string[] xValue = Enumerable.Range(0, 256).ToArray().Select(x => x.ToString()).ToArray();
// 設定x軸區間
chart1.ChartAreas["ChartArea1"].AxisX.Interval = 32;
chart1.Series.Add("R");
chart1.Series.Add("G");
chart1.Series.Add("B");
chart1.Series["R"].ChartType = SeriesChartType.Column;
chart1.Series["R"].Points.DataBindXY(xValue, yValue1);
chart1.Series["R"].Color = Color.FromArgb(150, Color.Red); // 半透明顏色
chart1.Series["G"].ChartType = SeriesChartType.Column;
chart1.Series["G"].Points.DataBindXY(xValue, yValue2);
chart1.Series["G"].Color = Color.FromArgb(150, Color.Green);
chart1.Series["B"].ChartType = SeriesChartType.Column;
chart1.Series["B"].Points.DataBindXY(xValue, yValue3);
chart1.Series["B"].Color = Color.FromArgb(150, Color.Blue);
// 設定圖表的高度與圖片相同
chart2.Size = new Size(chart2.Width, pictureBox2.Image.Height);
origin = (Bitmap)pictureBox2.Image;
target = origin.Clone(new Rectangle(0, 0, origin.Width, origin.Height), PixelFormat.Format24bppRgb);
w = target.Width;
h = target.Height;
Array.Clear(yValue1, 0, yValue1.Length);
Array.Clear(yValue2, 0, yValue2.Length);
Array.Clear(yValue3, 0, yValue3.Length);
for (int x = 0; x < w; ++x)
{
for (int y = 0; y < h; ++y)
{
Color c = target.GetPixel(x, y);
int r = c.R;
int g = c.G;
int b = c.B;
++yValue1[r];
++yValue2[g];
++yValue3[b];
}
}
// 將點個數轉換為頻率
total = w * h * 3;
for (int i = 0; i < 256; ++i)
{
yValue1[i] /= total;
yValue2[i] /= total;
yValue3[i] /= total;
}
// 設定x軸區間
chart2.ChartAreas["ChartArea1"].AxisX.Interval = 32;
chart2.Series.Add("R");
chart2.Series.Add("G");
chart2.Series.Add("B");
chart2.Series["R"].ChartType = SeriesChartType.Column;
chart2.Series["R"].Points.DataBindXY(xValue, yValue1);
chart2.Series["R"].Color = Color.FromArgb(150, Color.Red); // 半透明顏色
chart2.Series["G"].ChartType = SeriesChartType.Column;
chart2.Series["G"].Points.DataBindXY(xValue, yValue2);
chart2.Series["G"].Color = Color.FromArgb(150, Color.Green);
chart2.Series["B"].ChartType = SeriesChartType.Column;
chart2.Series["B"].Points.DataBindXY(xValue, yValue3);
chart2.Series["B"].Color = Color.FromArgb(150, Color.Blue);
// 設定圖表的高度與圖片相同
chart3.Size = new Size(chart3.Width, pictureBox3.Image.Height);
origin = (Bitmap)pictureBox3.Image;
target = origin.Clone(new Rectangle(0, 0, origin.Width, origin.Height), PixelFormat.Format24bppRgb);
w = target.Width;
h = target.Height;
Array.Clear(yValue1, 0, yValue1.Length);
for (int x = 0; x < w; ++x)
{
for (int y = 0; y < h; ++y)
{
Color c = target.GetPixel(x, y);
int r = c.R;
int g = c.G;
int b = c.B;
++yValue1[r];
++yValue1[g];
++yValue1[b];
}
}
// 將點個數轉換為頻率
total = w * h * 3;
for (int i = 0; i < 256; ++i)
{
yValue1[i] /= total;
}
// 設定x軸區間
chart3.ChartAreas["ChartArea1"].AxisX.Interval = 32;
// Intensities - 強度
chart3.Series.Add("Intensities"); // 資料序列集合
chart3.Series["Intensities"].ChartType = SeriesChartType.Column;
chart3.Series["Intensities"].Points.DataBindXY(xValue, yValue1);
// 設定圖表的高度與圖片相同
chart4.Size = new Size(chart4.Width, pictureBox4.Image.Height);
origin = (Bitmap)pictureBox4.Image;
target = origin.Clone(new Rectangle(0, 0, origin.Width, origin.Height), PixelFormat.Format24bppRgb);
w = target.Width;
h = target.Height;
Array.Clear(yValue1, 0, yValue1.Length);
for (int x = 0; x < w; ++x)
{
for (int y = 0; y < h; ++y)
{
Color c = target.GetPixel(x, y);
int r = c.R;
int g = c.G;
int b = c.B;
++yValue1[r];
++yValue1[g];
++yValue1[b];
}
}
// 將點個數轉換為頻率
total = w * h * 3;
for (int i = 0; i < 256; ++i)
{
yValue1[i] /= total;
}
// 設定x軸區間
chart4.ChartAreas["ChartArea1"].AxisX.Interval = 32;
// Intensities - 強度
chart4.Series.Add("Intensities"); // 資料序列集合
chart4.Series["Intensities"].ChartType = SeriesChartType.Column;
chart4.Series["Intensities"].Points.DataBindXY(xValue, yValue1);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
