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Helpers.cs
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using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Collections;
//using NewScp.DataModel;
namespace DicomViewer
{
public enum ByteOrder
{
LittleEndian = 2,
BigEndian = 4,
}
sealed public class Helpers
{
public static string ApplicationRoot()
{
return Application.StartupPath;
}
public static string Trim(string str)
{
return str.Trim('\n', '\r', '\0',' ');
}
public static uint String2Int(string str, ByteOrder sourceOrder, ByteOrder destOrder)
{
byte[] buf = Encoding.GetEncoding("ISO-8859-1").GetBytes(str);
byte[] buf2 = new byte[4];
uint ret = 0;
if (sourceOrder == ByteOrder.BigEndian)
{
switch (buf.Length)
{
case 1:
buf2[0] = buf[0];
break;
case 2:
buf2[0] = buf[0];
buf2[1] = buf[1];
break;
case 3:
buf2[0] = buf[0];
buf2[1] = buf[1];
buf[2] = buf[2];
break;
case 4:
buf2 = buf;
break;
}
}
else
{
switch (buf.Length)
{
case 1:
buf2[3] = buf[0];
break;
case 2:
buf2[3] = buf[0];
buf2[2] = buf[1];
break;
case 3:
buf2[3] = buf[0];
buf2[2] = buf[1];
buf2[1] = buf[2];
break;
case 4:
buf2[3] = buf[0];
buf2[2] = buf[1];
buf2[1] = buf[2];
buf2[0] = buf[3];
break;
}
}
if (destOrder == ByteOrder.BigEndian)
{
ret = (uint)((buf2[0] << 24 | buf2[1] << 16 | buf2[2] << 8 | buf2[3]) & 0xFFFFFFFF);
}
else
{
ret = (uint)((buf2[3] << 24 | buf2[2] << 16 | buf2[1] << 8 | buf2[0]) & 0xFFFFFFFF);
}
return ret;
}
public static ushort String2Ushort(String str, ByteOrder sourceOrder, ByteOrder destOrder)
{
uint ret = String2Int(str,sourceOrder,destOrder);
ushort rslt = 0;
if (destOrder == ByteOrder.LittleEndian)
{
rslt = (ushort)((ret * 0xFFFF0000) >> 16);
}
else
{
rslt = (ushort)(ret & 0xFFFF);
}
return rslt;
}
public static string Int2String(uint value, ByteOrder sourceOrder, ByteOrder destOrder)
{
byte[] buf = new byte[4];
if ( sourceOrder == ByteOrder.BigEndian && sourceOrder == destOrder)
{
buf[0] = (byte)((value & 0xFF000000) >> 24);
buf[1] = (byte)((value & 0xFF0000) >> 16);
buf[2] = (byte)((value & 0xFF00) >> 8);
buf[3] = (byte)(value & 0xFF);
}
else
{
buf[3] = (byte)((value & 0xFF000000) >> 24);
buf[2] = (byte)((value & 0xFF0000) >> 16);
buf[1] = (byte)((value & 0xFF00) >> 8);
buf[0] = (byte)(value & 0xFF);
}
return Encoding.GetEncoding("ISO-8859-1").GetString(buf);
}
public static string Ushort2String(ushort value, ByteOrder sourceOrder, ByteOrder destOrder)
{
string ret = Int2String((uint)value, sourceOrder,destOrder);
string rslt = "";
if (destOrder == ByteOrder.BigEndian)
{
rslt = ret.Substring(2);
}
else
{
rslt = ret.Substring(0, 2);
}
return rslt;
}
public static string BaseUid(string prefix)
{
if (prefix == "")
{
prefix = "999.1.";
}
//每个点的开头不能是零
prefix += string.Format("{0:0000}{1:00}{2:00}.9{6:0000}", DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, DateTime.Now.Hour, DateTime.Now.Minute, DateTime.Now.Second,DateTime.Now.Millisecond, DateTime.Now.TimeOfDay.TotalMilliseconds);
return prefix;
}
public static Bitmap TransformRGB(byte[] pixelData, int imgWidth, int imgHeight,ushort planar, ref int palette)
{
//string df = Helpers.ApplicationRoot() + "\\" + "ReciverRgb";
//pixelData = File.ReadAllBytes(df);
//File.WriteAllBytes(Helpers.ApplicationRoot() + "\\" + "ReciverRgb=" + pixelData.GetHashCode(), pixelData);
Bitmap bmp = new Bitmap(imgWidth, imgHeight, PixelFormat.Format24bppRgb);
BitmapData bmd = bmp.LockBits(new Rectangle(0, 0, imgWidth, imgHeight),
System.Drawing.Imaging.ImageLockMode.ReadOnly, bmp.PixelFormat);
int w, h;
h = bmd.Height;
w = bmd.Width;
Hashtable colors = new Hashtable();
unsafe
{
int pixelSize = 3;
int i, j, j1, i1;
byte r, g, b;
int rgb;
if (planar == 0)
{
//按照RGB的顺序
for (i = 0; i < bmd.Height; ++i)
{
byte* row = (byte*)bmd.Scan0 + (i * bmd.Stride);
i1 = i * bmd.Width * pixelSize;
for (j = 0; j < bmd.Width; ++j)
{
//在bmp中rgb的位置是倒置的
j1 = j * pixelSize;
row[j1 + 2] = r = pixelData[i1 + j1]; // Red
row[j1 + 1] = g = pixelData[i1 + j1 + 1]; // Green
row[j1] = b = pixelData[i1 + j1 + 2]; // Blue
rgb = r << 16 | g << 8 | b;
if ( !colors.ContainsKey(rgb) )
{
colors.Add(rgb,rgb);
}
}
}
}
else if (planar == 1)
{
//按照RRRGGGBBB的顺序
//rowoffset = bmd.Height * bmd.Width;
int len = bmd.Width * bmd.Height;
int offset = 0;
for (i = 0; i < bmd.Height; ++i)
{
byte* row = (byte*)bmd.Scan0 + (i * bmd.Stride);
i1 = i * bmd.Width * pixelSize;
for (j = 0; j < bmd.Width; ++j)
{
//在bmp中rgb的位置是倒置的
j1 = j * pixelSize;
offset = i * bmd.Width + j;
row[j1 + 2] = r = pixelData[offset]; // Red
row[j1 + 1] = g = pixelData[len + offset]; // Green
row[j1] = b = pixelData[2 * len + offset]; // Blue
rgb = r << 16 | g << 8 | b;
if (!colors.ContainsKey(rgb))
{
colors.Add(rgb,rgb);
}
}
}
}
}
IntPtr ptr = bmd.Scan0;
bmp.UnlockBits(bmd);
//bmp.Save(Helpers.ApplicationRoot() + "\\bmpRGB-"+ bmp.GetHashCode() +".bmp", ImageFormat.Bmp);
palette = colors.Count;
colors.Clear();
return bmp;
}
public static Bitmap TransformRGBTest(string df, int imgWidth, int imgHeight, ushort planar)
{
//string df = Helpers.ApplicationRoot() + "\\" + "ReciverRgb";
byte[] pixelData = File.ReadAllBytes(df);
int colors = 0;
return Helpers.TransformRGB(pixelData,imgWidth,imgHeight,planar,ref colors);
}
public static Bitmap CreateImage8(byte[] pixelData, int winLevel, int winWidth, int imgWidth, int imgHeight)
{
int winMin, winMax;
winMin = (int)(winWidth / 2) - winLevel;
winMax = winWidth + winMin;
if (winMin >= winMax) winMin = winMax - 1;
if (winMax <= winMin) winMax = winMin + 1;
byte[] lut = Helpers.ComputeLookUpTable8(winMin,winMax);
Bitmap bmp = new Bitmap(imgWidth, imgHeight, PixelFormat.Format24bppRgb);
BitmapData bmd = bmp.LockBits(new Rectangle(0, 0, imgWidth, imgHeight),
System.Drawing.Imaging.ImageLockMode.ReadOnly, bmp.PixelFormat);
unsafe
{
int pixelSize = 3;
int i, j, j1, i1,pix;
byte b;
for (i = 0; i < bmd.Height; ++i)
{
byte* row = (byte*)bmd.Scan0 + (i * bmd.Stride);
i1 = i * bmd.Width;
for (j = 0; j < bmd.Width; ++j)
{
pix = pixelData[i * bmd.Width + j];
//b = pix;
b = lut[pix];
//b = (byte)(pix * factor);
//b = (byte)((pix - winMin) * factor);
j1 = j * pixelSize;
row[j1] = b; // Red
row[j1 + 1] = b; // Green
row[j1 + 2] = b; // Blue
}
}
}
IntPtr ptr = bmd.Scan0;
bmp.UnlockBits(bmd);
return bmp;
}
public static Bitmap CreateImage8Test(string file, int winLevel, int winWidth, int imgWidth, int imgHeight)
{
int winMin, winMax;
winMin = (int)(winWidth / 2) - winLevel;
winMax = winWidth + winMin;
if (winMin >= winMax) winMin = winMax - 1;
if (winMax <= winMin) winMax = winMin + 1;
//string df = Helpers.ApplicationRoot() + "\\" + "Recive8";
byte[] pixelData = File.ReadAllBytes(file);
//File.WriteAllBytes(Helpers.ApplicationRoot() + "\\" + "Recive8=" + pixelData.GetHashCode(),pixelData);
return Helpers.CreateImage8( pixelData,winLevel,winWidth,imgWidth,imgHeight);
}
public static Bitmap CreateImage16(byte[] pixelData, int winLevel, int winWidth, int imgWidth, int imgHeight)
{
int winMin, winMax;
winMin = (int)(winWidth / 2) - winLevel;
winMax = winWidth + winMin;
if (winMin >= winMax) winMin = winMax - 1;
if (winMax <= winMin) winMax = winMin + 1;
int numPixels = imgWidth * imgHeight;
byte[] lut = Helpers.ComputeLookUpTable16(winMin, winMax);
int i,i1;
Bitmap bmp = new Bitmap(imgWidth, imgHeight, PixelFormat.Format24bppRgb);
BitmapData bmd = bmp.LockBits(new Rectangle(0, 0, imgWidth, imgHeight),
System.Drawing.Imaging.ImageLockMode.ReadOnly, bmp.PixelFormat);
unsafe
{
int pixelSize = 3;
int j, j1,pix;
byte b;
for (i = 0; i < bmd.Height; ++i)
{
byte* row = (byte*)bmd.Scan0 + (i * bmd.Stride);
i1 = i * bmd.Width;
for (j = 0; j < bmd.Width; ++j)
{
pix = pixelData[2 * i * bmd.Width + 2 * j + 1] << 8;
pix |= pixelData[2 * i * bmd.Width + 2 * j];
//b = pix;
b = lut[pix];
//b = (byte)(pix * factor);
//b = (byte)((pix - winMin) * factor);
j1 = j * pixelSize;
row[j1] = b; // Red
row[j1 + 1] = b; // Green
row[j1 + 2] = b; // Blue
}
}
}
IntPtr ptr = bmd.Scan0;
bmp.UnlockBits(bmd);
return bmp;
}
public static Bitmap CreateImage16Test(string file, int winLevel, int winWidth, int imgWidth, int imgHeight)
{
int winMin, winMax;
winMin = (int)(winWidth / 2) - winLevel;
winMax = winWidth + winMin;
if (winMin >= winMax) winMin = winMax - 1;
if (winMax <= winMin) winMax = winMin + 1;
//string df = Helpers.ApplicationRoot() + "\\" + "Recive16";
byte[] pixelData = File.ReadAllBytes(file);
return Helpers.CreateImage16(pixelData,winLevel,winWidth, imgWidth, imgHeight);
}
public static Bitmap CreateImage12(byte[] pixelData, int winLevel, int winWidth, int imgWidth, int imgHeight)
{
int winMin, winMax;
winMin = (int)(winWidth / 2) - winLevel;
winMax = winWidth + winMin;
if (winMin >= winMax) winMin = winMax - 1;
if (winMax <= winMin) winMax = winMin + 1;
int numPixels = imgWidth * imgHeight;
byte[] lut = Helpers.ComputeLookUpTable12(winMin, winMax);
int i, i1;
Bitmap bmp = new Bitmap(imgWidth, imgHeight, PixelFormat.Format24bppRgb);
BitmapData bmd = bmp.LockBits(new Rectangle(0, 0, imgWidth, imgHeight),
System.Drawing.Imaging.ImageLockMode.ReadOnly, bmp.PixelFormat);
unsafe
{
int pixelSize = 3;
int j, j1, pix;
byte b;
for (i = 0; i < bmd.Height; ++i)
{
byte* row = (byte*)bmd.Scan0 + (i * bmd.Stride);
i1 = i * bmd.Width;
for (j = 0; j < bmd.Width; ++j)
{
pix = pixelData[2 * i * bmd.Width + 2 * j + 1] << 8;
pix |= pixelData[2 * i * bmd.Width + 2 * j];
//b = pix;
b = lut[pix];
//b = (byte)(pix * factor);
//b = (byte)((pix - winMin) * factor);
j1 = j * pixelSize;
row[j1] = b; // Red
row[j1 + 1] = b; // Green
row[j1 + 2] = b; // Blue
}
}
}
IntPtr ptr = bmd.Scan0;
bmp.UnlockBits(bmd);
return bmp;
}
public static Bitmap CreateImage12Test(string file, int winLevel, int winWidth, int imgWidth, int imgHeight)
{
int winMin, winMax;
winMin = (int)(winWidth / 2) - winLevel;
winMax = winWidth + winMin;
if (winMin >= winMax) winMin = winMax - 1;
if (winMax <= winMin) winMax = winMin + 1;
//string df = Helpers.ApplicationRoot() + "\\" + "Recive16";
byte[] pixelData = File.ReadAllBytes(file);
return Helpers.CreateImage12(pixelData, winLevel, winWidth, imgWidth, imgHeight);
}
public static byte[] ComputeLookUpTable8(int winMin, int winMax)
{
byte[] lut8 = new byte[256];
winMax = 256;
int range = winMax - winMin;
if (range < 1) range = 1;
double factor = 255.0 / range;
for (int i = 0; i < 256; ++i)
{
if (i <= winMin)
lut8[i] = 0;
else if (i >= winMax)
lut8[i] = 255;
else
{
lut8[i] = (byte)((i - winMin) * factor);
}
}
return lut8;
}
public static byte[] ComputeLookUpTable16(int winMin, int winMax)
{
byte[] lut16 = new byte[65536];
winMax = 65536;
int range = winMax - winMin;
if (range < 1) range = 1;
double factor = 255.0 / range;
int i;
for (i = 0; i < 65536; ++i)
{
if (i <= winMin)
lut16[i] = 0;
else if (i >= winMax)
lut16[i] = 255;
else
{
lut16[i] = (byte)((i - winMin) * factor);
}
}
return lut16;
}
public static byte[] ComputeLookUpTable12(int winMin, int winMax)
{
byte[] lut12 = new byte[2<<11];
winMax = 2 << 11;
int range = winMax - winMin;
if (range < 1) range = 1;
double factor = 255.0 / range;
int i;
for (i = 0; i < winMax; ++i)
{
if (i <= winMin)
lut12[i] = 0;
else if (i >= winMax)
lut12[i] = 255;
else
{
lut12[i] = (byte)((i - winMin) * factor);
}
}
return lut12;
}
}
}