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Form1.cs
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Form1.cs
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using System.Diagnostics;
using System.Runtime.InteropServices;
namespace compareImages
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
string[] historyCMP = new string[10];
int indexHistoryCMP = 9;
string[] historyADJ = new string[10];
int indexHistoryADJ = 9;
private void button1_Click(object sender, EventArgs e)
{
using OpenFileDialog openFileDialog = new(); //open raster image from DialodWindow
openFileDialog.Filter = "Raster images|*.png;*.jpg;*.bmp;*.gif;*.jpeg;*.ico";
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
pictureBox1.Image = Image.FromFile(@openFileDialog.FileName);
for (int i = 1; i < 10; i++)
{
historyCMP[i - 1] = historyCMP[i];
}
historyCMP[9] = @openFileDialog.FileName;
indexHistoryCMP = 9;
if (historyCMP[8] != null) button9.Visible = true;
button8.Visible = false;
}
}
private void button2_Click(object sender, EventArgs e)
{
using FolderBrowserDialog folderBrowserDialog = new();
if (folderBrowserDialog.ShowDialog() == DialogResult.OK)
{
textBox1.Text = @folderBrowserDialog.SelectedPath;
}
}
private void button3_Click(object sender, EventArgs e)
{
if (pictureBox1.Image == null)
{
MessageBox.Show("Select original Image!");
}
else if (textBox1.Text == "")
{
MessageBox.Show("Select Folder to compare!");
}
else
{
Stopwatch stopWatch = new();
stopWatch.Start();
byte[,,] originalBytes = RGBfromBMP(pictureBox1.Image);
string[] allfiles = Directory.GetFiles(textBox1.Text);
foreach (string filename in allfiles)
{
string ext = filename[^4..];
if (ext == ".png" || ext == ".jpg" || ext == ".gif" || ext == "jpeg" || ext == ".bmp" || ext == ".ico")
{
Image compared = Image.FromFile(filename);
if (pictureBox1.Image.Width == compared.Width && pictureBox1.Image.Height == compared.Height)
{
byte[,,] comparedBytes = RGBfromBMP(compared);
float MAErgb8 = compareMAErgb8(originalBytes, comparedBytes);
textBox2.Text += filename + " = " + (1 - MAErgb8).ToString() + "\r\n";
textBox2.SelectionStart = textBox2.Text.Length;
textBox2.ScrollToCaret();
Application.DoEvents();
}
}
}
stopWatch.Stop();
TimeSpan ts = stopWatch.Elapsed;
MessageBox.Show("All images in folder with same size have been compared to original in " + String.Format("{0:0.000} ", ts.TotalSeconds) + "seconds!");
}
}
private static float compareMAErgb8(byte[,,] original, byte[,,] compared)
{
int w = original.GetLength(0);
int h = original.GetLength(1);
int sumEr = 0;
Parallel.For(0, h, y =>
{
for (int x = 0; x < w; x++)
{
Interlocked.Add(ref sumEr, Math.Abs(original[x, y, 0] - compared[x, y, 0]) + Math.Abs(original[x, y, 1] - compared[x, y, 1]) + Math.Abs(original[x, y, 2] - compared[x, y, 2]));
}
});
return (float)sumEr / w / h / 765;
}
static byte[,,] RGBfromBMP(Image img)
{
int w = img.Width;
int h = img.Height;
Bitmap bmp = (Bitmap)img;
byte[,,] sr = new byte[w, h, 3];
System.Drawing.Imaging.BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, w, h), System.Drawing.Imaging.ImageLockMode.ReadWrite, bmp.PixelFormat);
int stride = Math.Abs(bmpData.Stride);
int bytes = stride * bmp.Height;
IntPtr ptr = bmpData.Scan0;
byte[] rgbValues = new byte[bytes];
Marshal.Copy(ptr, rgbValues, 0, bytes);
if (bmp.PixelFormat == System.Drawing.Imaging.PixelFormat.Format24bppRgb)
{
int w3 = w * 3;
int stridew3 = stride - w3;
Parallel.For(0, rgbValues.Length, c =>
{
if (c % stride < w3)
{
int realc = c - stridew3 * (c / stride);
int realc3 = realc / 3;
int i = realc3 % w;
int s = realc3 / w;
sr[i, s, 2 - realc % 3] = rgbValues[c];
}
});
}
else
{
int w4 = w * 4;
int stridew4 = stride - w4;
Parallel.For(0, rgbValues.Length, c =>
{
if (c % stride < w4)
{
int realc = c - stridew4 * (c / stride);
int realc4 = realc / 4;
int i = realc4 % w;
int s = realc4 / w;
int realcm4 = realc % 4;
if (realcm4 < 3) sr[i, s, 2 - realcm4] = rgbValues[c];
}
});
}
bmp.UnlockBits(bmpData);
return sr;
}
private void button6_Click(object sender, EventArgs e)
{
using OpenFileDialog openFileDialog = new(); //open raster image from DialodWindow
openFileDialog.Filter = "Raster images|*.png;*.jpg;*.bmp;*.gif;*.jpeg;*.ico";
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
pictureBox2.Image = Image.FromFile(@openFileDialog.FileName);
for (int i = 1; i < 10; i++)
{
historyADJ[i - 1] = historyADJ[i];
}
historyADJ[9] = @openFileDialog.FileName;
indexHistoryADJ = 9;
if (historyADJ[8] != null) button10.Visible = true;
button11.Visible = false;
}
}
private void button5_Click(object sender, EventArgs e)
{
using FolderBrowserDialog folderBrowserDialog = new();
if (folderBrowserDialog.ShowDialog() == DialogResult.OK)
{
textBox3.Text = @folderBrowserDialog.SelectedPath;
}
}
private void button4_Click(object sender, EventArgs e)
{
if (pictureBox2.Image == null)
{
MessageBox.Show("Select original Image!");
}
else if (textBox3.Text == "")
{
MessageBox.Show("Select Folder to adjust!");
}
else
{
string al = "All";
byte[,,] originalBytes = RGBfromBMP(pictureBox2.Image);
int wo = pictureBox2.Image.Width;
int ho = pictureBox2.Image.Height;
float aspect = (float)wo / ho;
string[] allfiles = Directory.GetFiles(textBox3.Text);
Stopwatch allS = new();
allS.Start();
foreach (string filename in allfiles)
{
string ext = filename[^4..];
if ((ext == ".png" || ext == ".jpg" || ext == ".gif" || ext == "jpeg" || ext == ".bmp" || ext == ".ico") && !(filename.Contains("Adj") && filename.Contains("Lanc")))
{
Image adjusted = Image.FromFile(filename);
int w = adjusted.Width;
int h = adjusted.Height;
if (aspect == (float)w / h && wo < w)
{
Stopwatch stopWatch = new();
stopWatch.Start();
byte[,,] adjustedBytes = RGBfromBMP(adjusted);
string newname = filename[..^4] + "AdjLanc1.png";
if (File.Exists(newname)) try
{
File.Delete(newname);
}
catch
{
al = "Some";
};
try
{
ReverseAdjustmentLanc1(originalBytes, adjustedBytes, w, h, wo, ho).Save(newname);
stopWatch.Stop();
TimeSpan ts = stopWatch.Elapsed;
textBox4.Text += newname + " done in " + String.Format("{0:0.000} ", ts.TotalSeconds) + "seconds\r\n";
textBox4.SelectionStart = textBox4.Text.Length;
textBox4.ScrollToCaret();
}
catch
{
textBox4.Text += newname + " Error\r\n";
}
Application.DoEvents();
}
}
}
allS.Stop();
TimeSpan allTs = allS.Elapsed;
MessageBox.Show(al + " images in Folder with bigger size and same aspect ratio have been adjusted to original Image in " + String.Format("{0:0.000} ", allTs.TotalSeconds) + "seconds!");
}
}
private static Bitmap ReverseAdjustmentLanc1(byte[,,] originalBytes, byte[,,] adjustedBytes, int w, int h, int wo, int ho)
{
float decrease = (float)w / wo;
(float[,,] mpf, float[,,] add) = AdjustCalc(originalBytes, ExactMean(adjustedBytes, w, h, wo, ho, decrease), adjustedBytes, decrease, w, h, wo, ho);
return BMPfromRGB(DoAdjust(adjustedBytes, scaleLanczos1(mpf, wo, ho, decrease), scaleLanczos1(add, wo, ho, decrease), w, h), w, h);
}
private static byte[,,] DoAdjust(byte[,,] adjustedBytes, float[,,] lancMPs, float[,,] lancAds, int w, int h)
{
Parallel.For(0, h, y =>
{
for (int x = 0; x < w; x++)
{
adjustedBytes[x, y, 0] = (byte)Math.Clamp(adjustedBytes[x, y, 0] * lancMPs[x, y, 0] + lancAds[x, y, 0] + 0.5f, 0, 255);
adjustedBytes[x, y, 1] = (byte)Math.Clamp(adjustedBytes[x, y, 1] * lancMPs[x, y, 1] + lancAds[x, y, 1] + 0.5f, 0, 255);
adjustedBytes[x, y, 2] = (byte)Math.Clamp(adjustedBytes[x, y, 2] * lancMPs[x, y, 2] + lancAds[x, y, 2] + 0.5f, 0, 255);
}
});
return adjustedBytes;
}
private static (float[,,] mpf, float[,,] add) AdjustCalc(byte[,,] originalBytes, byte[,,] miniAdj, byte[,,] adjustedBytes, float decrease, int w, int h, int wo, int ho)
{
float[,,] mpf = new float[wo, ho, 3];
float[,,] add = new float[wo, ho, 3];
Parallel.For(0, ho, y =>
{
for (int x = 0; x < wo; x++)
{
int rmin = 256;
int rmax = -1;
int gmin = 256;
int gmax = -1;
int bmin = 256;
int bmax = -1;
for (int fx = 0; fx < decrease; fx++)
{
int xx = (int)(x * decrease + fx + 0.5f);
if (xx < w)
{
for (int fy = 0; fy < decrease; fy++)
{
int yy = (int)(y * decrease + fy + 0.5f);
if (yy < h)
{
if (adjustedBytes[xx, yy, 0] < rmin) rmin = adjustedBytes[xx, yy, 0];
if (adjustedBytes[xx, yy, 0] > rmax) rmax = adjustedBytes[xx, yy, 0];
if (adjustedBytes[xx, yy, 1] < gmin) gmin = adjustedBytes[xx, yy, 1];
if (adjustedBytes[xx, yy, 1] > gmax) gmax = adjustedBytes[xx, yy, 1];
if (adjustedBytes[xx, yy, 2] < bmin) bmin = adjustedBytes[xx, yy, 2];
if (adjustedBytes[xx, yy, 2] > bmax) bmax = adjustedBytes[xx, yy, 2];
}
}
}
}
if (miniAdj[x, y, 0] == 0)
{
add[x, y, 0] = originalBytes[x, y, 0];
}
else if (rmax == rmin)
{
mpf[x, y, 0] = 1;
add[x, y, 0] = originalBytes[x, y, 0] - miniAdj[x, y, 0];
}
else if (rmax * originalBytes[x, y, 0] / (float)miniAdj[x, y, 0] > 255)
{
float t1x = (float)(miniAdj[x, y, 0] - rmin) / (rmax - rmin);
float a2 = (255 - originalBytes[x, y, 0]) / (1 - t1x);
mpf[x, y, 0] = a2 / (rmax - rmin);
add[x, y, 0] = originalBytes[x, y, 0] - a2 * t1x - rmin * mpf[x, y, 0];
}
else
{
mpf[x, y, 0] = originalBytes[x, y, 0] / (float)miniAdj[x, y, 0];
}
if (miniAdj[x, y, 1] == 0)
{
add[x, y, 1] = originalBytes[x, y, 1];
}
else if (gmax == gmin)
{
mpf[x, y, 1] = 1;
add[x, y, 1] = originalBytes[x, y, 1] - miniAdj[x, y, 1];
}
else if (gmax * originalBytes[x, y, 1] / (float)miniAdj[x, y, 1] > 255)
{
float t1x = (float)(miniAdj[x, y, 1] - gmin) / (gmax - gmin);
float a2 = (255 - originalBytes[x, y, 1]) / (1 - t1x);
mpf[x, y, 1] = a2 / (gmax - gmin);
add[x, y, 1] = originalBytes[x, y, 1] - a2 * t1x - gmin * mpf[x, y, 1];
}
else
{
mpf[x, y, 1] = originalBytes[x, y, 1] / (float)miniAdj[x, y, 1];
}
if (miniAdj[x, y, 2] == 0)
{
add[x, y, 2] = originalBytes[x, y, 2];
}
else if (bmax == bmin)
{
mpf[x, y, 2] = 1;
add[x, y, 2] = originalBytes[x, y, 2] - miniAdj[x, y, 2];
}
else if (bmax * originalBytes[x, y, 2] / (float)miniAdj[x, y, 2] > 255)
{
float t1x = (float)(miniAdj[x, y, 2] - bmin) / (bmax - bmin);
float a2 = (255 - originalBytes[x, y, 2]) / (1 - t1x);
mpf[x, y, 2] = a2 / (bmax - bmin);
add[x, y, 2] = originalBytes[x, y, 2] - a2 * t1x - bmin * mpf[x, y, 2];
}
else
{
mpf[x, y, 2] = originalBytes[x, y, 2] / (float)miniAdj[x, y, 2];
}
}
});
return (mpf, add);
}
private static float[,,] scaleLanczos1(float[,,] RGB, int wo, int ho, float scale)
{
int h = (int)(ho * scale);
float w = wo * scale;
float[,,] lnc = new float[(int)w, h, 3];
int scaleHalf = (int)(scale / 2 + 0.5f);
float ascale = 1f / scale;
Parallel.For(-scaleHalf, h - scaleHalf, y =>
{
int yc = y + scaleHalf;
float l;
int yy = (int)(y * ascale);
for (int x = -scaleHalf; x < w - scaleHalf; x++)
{
int xc = x + scaleHalf;
int xx = (int)(x * ascale);
float suml = 0;
float sumr = 0;
float sumg = 0;
float sumb = 0;
for (int xf = -1; xf <= 1; xf++)
{
int xxx = xx + xf;
if (xxx >= 0 && xxx < wo)
{
for (int yf = -1; yf <= 1; yf++)
{
int yyy = yy + yf;
if (yyy >= 0 && yyy < ho)
{
l = Lanczos1(xxx - x * ascale) * Lanczos1(yyy - y * ascale);
suml += l;
sumr += l * RGB[xxx, yyy, 0];
sumg += l * RGB[xxx, yyy, 1];
sumb += l * RGB[xxx, yyy, 2];
}
}
}
}
lnc[xc, yc, 0] = sumr / suml;
lnc[xc, yc, 1] = sumg / suml;
lnc[xc, yc, 2] = sumb / suml;
}
});
return lnc;
}
private static float[,,] scaleLanczos250(float[,,] RGB, int wo, int ho, float scale)
{
int h = (int)(ho * scale);
float w = wo * scale;
float[,,] lnc = new float[(int)w, h, 3];
int scaleHalf = (int)(scale / 2 + 0.5f);
float ascale = 1f / scale;
Parallel.For(-scaleHalf, h - scaleHalf, y =>
{
int yc = y + scaleHalf;
float l;
int yy = (int)(y * ascale);
for (int x = -scaleHalf; x < w - scaleHalf; x++)
{
int xc = x + scaleHalf;
int xx = (int)(x * ascale);
float suml = 0;
float sumr = 0;
float sumg = 0;
float sumb = 0;
for (int xf = -3; xf <= 3; xf++)
{
int xxx = xx + xf;
if (xxx >= 0 && xxx < wo)
{
for (int yf = -3; yf <= 3; yf++)
{
int yyy = yy + yf;
if (yyy >= 0 && yyy < ho)
{
l = Lanczos250(xxx - x * ascale) * Lanczos250(yyy - y * ascale);
suml += l;
sumr += l * RGB[xxx, yyy, 0];
sumg += l * RGB[xxx, yyy, 1];
sumb += l * RGB[xxx, yyy, 2];
}
}
}
}
lnc[xc, yc, 0] = sumr / suml;
lnc[xc, yc, 1] = sumg / suml;
lnc[xc, yc, 2] = sumb / suml;
}
});
return lnc;
}
private static float Lanczos250(float v)
{
if (v == 0) return 1;
else if (v >= 2.5f || v <= -2.5f) return 0;//
else
{
float px = MathF.PI * v;
return 2.5f * MathF.Sin(px) * MathF.Sin(px / 2.5f) / px / px;
}
}
private static float Lanczos1(float v)
{
if (v == 0) return 1;
else if (v >= 1 || v <= -1) return 0;
else
{
float px = MathF.PI * v;
return MathF.Pow(MathF.Sin(px) / px, 2f);
}
}
private static byte[,,] ExactMean(byte[,,] colorBytes, int w, int h, int wo, int ho, float decrease)
{
int decreaseI = (int)(decrease + 0.5f);
float decrease2 = 1f / (decreaseI * decreaseI);
byte[,,] miniPic = new byte[wo, ho, 3];
Parallel.For(0, ho, y =>
{
int ys = (int)(y * decrease + 0.5f);
while (ys + decreaseI >= h) ys--;
for (int x = 0; x < wo; x++)
{
int xs = (int)(x * decrease + 0.5f);
while (xs + decreaseI >= w) xs--;
int red = 0;
int green = 0;
int blue = 0;
for (int fx = 0; fx < decreaseI; fx++)
{
int xx = xs + fx;
for (int fy = 0; fy < decreaseI; fy++)
{
int yy = ys + fy;
red += colorBytes[xx, yy, 0];
green += colorBytes[xx, yy, 1];
blue += colorBytes[xx, yy, 2];
}
}
miniPic[x, y, 0] = (byte)(red * decrease2 + 0.5f);
miniPic[x, y, 1] = (byte)(green * decrease2 + 0.5f);
miniPic[x, y, 2] = (byte)(blue * decrease2 + 0.5f);
}
});
return miniPic;
}
static Bitmap BMPfromRGB(byte[,,] sr, int w, int h)
{
Bitmap bmp = new(w, h);
System.Drawing.Imaging.BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, w, h), System.Drawing.Imaging.ImageLockMode.ReadWrite, bmp.PixelFormat);
int bytes = w * h * 4;
IntPtr ptr = bmpData.Scan0;
byte[] rgbValues = new byte[bytes];
Parallel.For(0, rgbValues.Length / 4, c =>
{
int c4 = c * 4;
int i = c % w;
int s = c / w;
rgbValues[c4] = sr[i, s, 2];
rgbValues[c4 + 1] = sr[i, s, 1];
rgbValues[c4 + 2] = sr[i, s, 0];
rgbValues[c4 + 3] = 255;
});
Marshal.Copy(rgbValues, 0, ptr, bytes);
bmp.UnlockBits(bmpData);
return bmp;
}
private void button7_Click(object sender, EventArgs e)
{
if (pictureBox2.Image == null)
{
MessageBox.Show("Select original Image!");
}
else if (textBox3.Text == "")
{
MessageBox.Show("Select Folder to adjust!");
}
else
{
string al = "All";
byte[,,] originalBytes = RGBfromBMP(pictureBox2.Image);
int wo = pictureBox2.Image.Width;
int ho = pictureBox2.Image.Height;
float aspect = (float)wo / ho;
string[] allfiles = Directory.GetFiles(textBox3.Text);
Stopwatch allS = new();
allS.Start();
foreach (string filename in allfiles)
{
string ext = filename[^4..];
if ((ext == ".png" || ext == ".jpg" || ext == ".gif" || ext == "jpeg" || ext == ".bmp" || ext == ".ico") && !(filename.Contains("Adj") && filename.Contains("Lanc")))
{
Image adjusted = Image.FromFile(filename);
int w = adjusted.Width;
int h = adjusted.Height;
if (aspect == (float)w / h && wo < w)
{
Stopwatch stopWatch = new();
stopWatch.Start();
byte[,,] adjustedBytes = RGBfromBMP(adjusted);
string newname = filename[..^4] + "AdjMagLanc1.png";
if (File.Exists(newname)) try
{
File.Delete(newname);
}
catch
{
al = "Some";
};
try
{
ReverseAdjustmentMagLanc1(originalBytes, adjustedBytes, w, h, wo, ho).Save(newname);
stopWatch.Stop();
TimeSpan ts = stopWatch.Elapsed;
textBox4.Text += newname + " done in " + String.Format("{0:0.000} ", ts.TotalSeconds) + "seconds\r\n";
textBox4.SelectionStart = textBox4.Text.Length;
textBox4.ScrollToCaret();
}
catch
{
textBox4.Text += newname + " Error\r\n";
}
Application.DoEvents();
}
}
}
allS.Stop();
TimeSpan allTs = allS.Elapsed;
MessageBox.Show(al + " images in Folder with bigger size and same aspect ratio have been adjusted to original Image in " + String.Format("{0:0.000} ", allTs.TotalSeconds) + "seconds!");
}
}
private static Bitmap ReverseAdjustmentMagLanc1(byte[,,] originalBytes, byte[,,] adjustedBytes, int w, int h, int wo, int ho)
{
float decrease = (float)w / wo;
(float[,,] mpf, float[,,] add) = AdjustCalc(originalBytes, ExactMean(adjustedBytes, w, h, wo, ho, decrease), adjustedBytes, decrease, w, h, wo, ho);
return BMPfromRGB(DoAdjust(adjustedBytes, scaleMagLanczos1(mpf, wo, ho, decrease), scaleMagLanczos1(add, wo, ho, decrease), w, h), w, h);
}
private static float[,,] scaleMagLanczos1(float[,,] RGB, int wo, int ho, float scale)
{
int h = (int)(ho * scale);
float w = wo * scale;
float[,,] lnc = new float[(int)w, h, 3];
int scaleHalf = (int)(scale / 2 + 0.5f);
float ascale = 1f / scale;
Parallel.For(-scaleHalf, h - scaleHalf, y =>
{
int yc = y + scaleHalf;
float l;
int yy = (int)(y * ascale);
for (int x = -scaleHalf; x < w - scaleHalf; x++)
{
int xc = x + scaleHalf;
int xx = (int)(x * ascale);
float suml = 0;
float sumr = 0;
float sumg = 0;
float sumb = 0;
for (int xf = -1; xf <= 1; xf++)
{
int xxx = xx + xf;
if (xxx >= 0 && xxx < wo)
{
for (int yf = -1; yf <= 1; yf++)
{
int yyy = yy + yf;
if (yyy >= 0 && yyy < ho)
{
l = Lanczos1(MathF.Sqrt(MathF.Pow(xxx * scale - x, 2f) + MathF.Pow(yyy * scale - y, 2f)) * ascale);
suml += l;
sumr += l * RGB[xxx, yyy, 0];
sumg += l * RGB[xxx, yyy, 1];
sumb += l * RGB[xxx, yyy, 2];
}
}
}
}
lnc[xc, yc, 0] = sumr / suml;
lnc[xc, yc, 1] = sumg / suml;
lnc[xc, yc, 2] = sumb / suml;
}
});
return lnc;
}
private void button9_Click(object sender, EventArgs e)
{
if (indexHistoryCMP > 0) indexHistoryCMP--;
pictureBox1.Image = Image.FromFile(historyCMP[indexHistoryCMP]);
button8.Visible = true;
if (indexHistoryCMP > 0)
{
if (historyCMP[indexHistoryCMP - 1] == null) button9.Visible = false;
}
else
{
button9.Visible = false;
}
}
private void button8_Click(object sender, EventArgs e)
{
if (indexHistoryCMP < 9) indexHistoryCMP++;
pictureBox1.Image = Image.FromFile(historyCMP[indexHistoryCMP]);
button9.Visible = true;
if (indexHistoryCMP > 8)
{
button8.Visible = false;
}
}
private void button10_Click(object sender, EventArgs e)
{
if (indexHistoryADJ > 0) indexHistoryADJ--;
pictureBox2.Image = Image.FromFile(historyADJ[indexHistoryADJ]);
button11.Visible = true;
if (indexHistoryADJ > 0)
{
if (historyADJ[indexHistoryADJ - 1] == null) button10.Visible = false;
}
else
{
button10.Visible = false;
}
}
private void button11_Click(object sender, EventArgs e)
{
if (indexHistoryADJ < 9) indexHistoryADJ++;
pictureBox2.Image = Image.FromFile(historyADJ[indexHistoryADJ]);
button10.Visible = true;
if (indexHistoryADJ > 8)
{
button11.Visible = false;
}
}
private void button12_Click(object sender, EventArgs e)//2.5
{
if (pictureBox2.Image == null)
{
MessageBox.Show("Select original Image!");
}
else if (textBox3.Text == "")
{
MessageBox.Show("Select Folder to adjust!");
}
else
{
string al = "All";
byte[,,] originalBytes = RGBfromBMP(pictureBox2.Image);
int wo = pictureBox2.Image.Width;
int ho = pictureBox2.Image.Height;
float aspect = (float)wo / ho;
string[] allfiles = Directory.GetFiles(textBox3.Text);
Stopwatch allS = new();
allS.Start();
foreach (string filename in allfiles)
{
string ext = filename[^4..];
if ((ext == ".png" || ext == ".jpg" || ext == ".gif" || ext == "jpeg" || ext == ".bmp" || ext == ".ico") && !(filename.Contains("Adj") && filename.Contains("Lanc")))
{
Image adjusted = Image.FromFile(filename);
int w = adjusted.Width;
int h = adjusted.Height;
if (aspect == (float)w / h && wo < w)
{
Stopwatch stopWatch = new();
stopWatch.Start();
byte[,,] adjustedBytes = RGBfromBMP(adjusted);
string newname = filename[..^4] + "AdjLanc250.png";
if (File.Exists(newname)) try
{
File.Delete(newname);
}
catch
{
al = "Some";
};
try
{
ReverseAdjustmentLanc250(originalBytes, adjustedBytes, w, h, wo, ho).Save(newname);
stopWatch.Stop();
TimeSpan ts = stopWatch.Elapsed;
textBox4.Text += newname + " done in " + String.Format("{0:0.000} ", ts.TotalSeconds) + "seconds\r\n";
textBox4.SelectionStart = textBox4.Text.Length;
textBox4.ScrollToCaret();
}
catch
{
textBox4.Text += newname + " Error\r\n";
}
Application.DoEvents();
}
}
}
allS.Stop();
TimeSpan allTs = allS.Elapsed;
MessageBox.Show(al + " images in Folder with bigger size and same aspect ratio have been adjusted to original Image in " + String.Format("{0:0.000} ", allTs.TotalSeconds) + "seconds!");
}
}
private static Bitmap ReverseAdjustmentLanc250(byte[,,] originalBytes, byte[,,] adjustedBytes, int w, int h, int wo, int ho)
{
float decrease = (float)w / wo;
(float[,,] mpf, float[,,] add) = AdjustCalc(originalBytes, ExactMean(adjustedBytes, w, h, wo, ho, decrease), adjustedBytes, decrease, w, h, wo, ho);
return BMPfromRGB(DoAdjust(adjustedBytes, scaleLanczos250(mpf, wo, ho, decrease), scaleLanczos250(add, wo, ho, decrease), w, h), w, h);
}
}
}