C# convert Raw(8-bit or 10-bit or 12-bit or 14-bit or 16-bit) Image to bmp












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I have some Raw Images files(Raw8 or Raw10 or Raw12 or Raw14 or Raw16...). I want to convert Raw to bmp.



The code runs but I still have some issues with the results.



public void ReadImage(out byte Data, string path, uint Width, uint Height,uint BPP){
byte fileData = null;
if (!File.Exists(path))
{
throw new FileNotFoundException(path);
}

fileData = File.ReadAllBytes(path);
var bytesPerPixel = (BPP + 7) / 8;
var dataSize = Width * Height * bytesPerPixel;
Data = new byte[Width * Height * bytesPerPixel];
var sdata = new short[dataSize / 2];
if (bytesPerPixel == 1)
{
for (int i = 0, shortIndex = 0; i < dataSize; i += 2, shortIndex++)
{
CopyBytesToShort(fileData[i], fileData[i + 1], out sdata[shortIndex], (int)BPP, false);
}
}
if (bytesPerPixel == 2)
{
for (int i = 0, shortIndex = 0; i < dataSize; i += 2, shortIndex++)
{
CopyBytesToShort(fileData[i],fileData[i + 1], out sdata[shortIndex], (int)BPP, true);
}
}
Buffer.BlockCopy(sdata, 0, Data, 0, Data.Length);
int w = Convert.ToInt32(Width);
int h = Convert.ToInt32(Height);
unsafe
{
fixed (byte* ptr = Data)
{
using (var bmp = new Bitmap(w / 4, h / 4, w * 4, PixelFormat.Format32bppRgb, new IntPtr(ptr)))
{

Bitmap dmybp = new Bitmap(bmp, new Size(w, h));
dmybp.Save(@"RAW.bmp", System.Drawing.Imaging.ImageFormat.Bmp);
}
}
}
}
private void CopyBytesToShort(byte byte1, byte byte2, out short retShort, int bitsPerPixel, bool isPerformShift)
{
short lsb, msb;
lsb = byte1;
msb = byte2;
if (isPerformShift)
{
lsb <<= 16 - bitsPerPixel;
msb <<= (24 - bitsPerPixel);
}
else
{
msb <<= 8;
}
retShort = (short)(msb | lsb);
}


if i run with Raw8 can get correct image.enter image description here



But when i run other RAW file(Raw10 or Raw12 or Raw14 or Raw16...), I got fail image.
Like this:
enter image description here



Please comment about about optimizing my code in C# and if there a better way to convert an image.









share







New contributor




lovecindy929 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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    0












    $begingroup$


    I have some Raw Images files(Raw8 or Raw10 or Raw12 or Raw14 or Raw16...). I want to convert Raw to bmp.



    The code runs but I still have some issues with the results.



    public void ReadImage(out byte Data, string path, uint Width, uint Height,uint BPP){
    byte fileData = null;
    if (!File.Exists(path))
    {
    throw new FileNotFoundException(path);
    }

    fileData = File.ReadAllBytes(path);
    var bytesPerPixel = (BPP + 7) / 8;
    var dataSize = Width * Height * bytesPerPixel;
    Data = new byte[Width * Height * bytesPerPixel];
    var sdata = new short[dataSize / 2];
    if (bytesPerPixel == 1)
    {
    for (int i = 0, shortIndex = 0; i < dataSize; i += 2, shortIndex++)
    {
    CopyBytesToShort(fileData[i], fileData[i + 1], out sdata[shortIndex], (int)BPP, false);
    }
    }
    if (bytesPerPixel == 2)
    {
    for (int i = 0, shortIndex = 0; i < dataSize; i += 2, shortIndex++)
    {
    CopyBytesToShort(fileData[i],fileData[i + 1], out sdata[shortIndex], (int)BPP, true);
    }
    }
    Buffer.BlockCopy(sdata, 0, Data, 0, Data.Length);
    int w = Convert.ToInt32(Width);
    int h = Convert.ToInt32(Height);
    unsafe
    {
    fixed (byte* ptr = Data)
    {
    using (var bmp = new Bitmap(w / 4, h / 4, w * 4, PixelFormat.Format32bppRgb, new IntPtr(ptr)))
    {

    Bitmap dmybp = new Bitmap(bmp, new Size(w, h));
    dmybp.Save(@"RAW.bmp", System.Drawing.Imaging.ImageFormat.Bmp);
    }
    }
    }
    }
    private void CopyBytesToShort(byte byte1, byte byte2, out short retShort, int bitsPerPixel, bool isPerformShift)
    {
    short lsb, msb;
    lsb = byte1;
    msb = byte2;
    if (isPerformShift)
    {
    lsb <<= 16 - bitsPerPixel;
    msb <<= (24 - bitsPerPixel);
    }
    else
    {
    msb <<= 8;
    }
    retShort = (short)(msb | lsb);
    }


    if i run with Raw8 can get correct image.enter image description here



    But when i run other RAW file(Raw10 or Raw12 or Raw14 or Raw16...), I got fail image.
    Like this:
    enter image description here



    Please comment about about optimizing my code in C# and if there a better way to convert an image.









    share







    New contributor




    lovecindy929 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.







    $endgroup$















      0












      0








      0





      $begingroup$


      I have some Raw Images files(Raw8 or Raw10 or Raw12 or Raw14 or Raw16...). I want to convert Raw to bmp.



      The code runs but I still have some issues with the results.



      public void ReadImage(out byte Data, string path, uint Width, uint Height,uint BPP){
      byte fileData = null;
      if (!File.Exists(path))
      {
      throw new FileNotFoundException(path);
      }

      fileData = File.ReadAllBytes(path);
      var bytesPerPixel = (BPP + 7) / 8;
      var dataSize = Width * Height * bytesPerPixel;
      Data = new byte[Width * Height * bytesPerPixel];
      var sdata = new short[dataSize / 2];
      if (bytesPerPixel == 1)
      {
      for (int i = 0, shortIndex = 0; i < dataSize; i += 2, shortIndex++)
      {
      CopyBytesToShort(fileData[i], fileData[i + 1], out sdata[shortIndex], (int)BPP, false);
      }
      }
      if (bytesPerPixel == 2)
      {
      for (int i = 0, shortIndex = 0; i < dataSize; i += 2, shortIndex++)
      {
      CopyBytesToShort(fileData[i],fileData[i + 1], out sdata[shortIndex], (int)BPP, true);
      }
      }
      Buffer.BlockCopy(sdata, 0, Data, 0, Data.Length);
      int w = Convert.ToInt32(Width);
      int h = Convert.ToInt32(Height);
      unsafe
      {
      fixed (byte* ptr = Data)
      {
      using (var bmp = new Bitmap(w / 4, h / 4, w * 4, PixelFormat.Format32bppRgb, new IntPtr(ptr)))
      {

      Bitmap dmybp = new Bitmap(bmp, new Size(w, h));
      dmybp.Save(@"RAW.bmp", System.Drawing.Imaging.ImageFormat.Bmp);
      }
      }
      }
      }
      private void CopyBytesToShort(byte byte1, byte byte2, out short retShort, int bitsPerPixel, bool isPerformShift)
      {
      short lsb, msb;
      lsb = byte1;
      msb = byte2;
      if (isPerformShift)
      {
      lsb <<= 16 - bitsPerPixel;
      msb <<= (24 - bitsPerPixel);
      }
      else
      {
      msb <<= 8;
      }
      retShort = (short)(msb | lsb);
      }


      if i run with Raw8 can get correct image.enter image description here



      But when i run other RAW file(Raw10 or Raw12 or Raw14 or Raw16...), I got fail image.
      Like this:
      enter image description here



      Please comment about about optimizing my code in C# and if there a better way to convert an image.









      share







      New contributor




      lovecindy929 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.







      $endgroup$




      I have some Raw Images files(Raw8 or Raw10 or Raw12 or Raw14 or Raw16...). I want to convert Raw to bmp.



      The code runs but I still have some issues with the results.



      public void ReadImage(out byte Data, string path, uint Width, uint Height,uint BPP){
      byte fileData = null;
      if (!File.Exists(path))
      {
      throw new FileNotFoundException(path);
      }

      fileData = File.ReadAllBytes(path);
      var bytesPerPixel = (BPP + 7) / 8;
      var dataSize = Width * Height * bytesPerPixel;
      Data = new byte[Width * Height * bytesPerPixel];
      var sdata = new short[dataSize / 2];
      if (bytesPerPixel == 1)
      {
      for (int i = 0, shortIndex = 0; i < dataSize; i += 2, shortIndex++)
      {
      CopyBytesToShort(fileData[i], fileData[i + 1], out sdata[shortIndex], (int)BPP, false);
      }
      }
      if (bytesPerPixel == 2)
      {
      for (int i = 0, shortIndex = 0; i < dataSize; i += 2, shortIndex++)
      {
      CopyBytesToShort(fileData[i],fileData[i + 1], out sdata[shortIndex], (int)BPP, true);
      }
      }
      Buffer.BlockCopy(sdata, 0, Data, 0, Data.Length);
      int w = Convert.ToInt32(Width);
      int h = Convert.ToInt32(Height);
      unsafe
      {
      fixed (byte* ptr = Data)
      {
      using (var bmp = new Bitmap(w / 4, h / 4, w * 4, PixelFormat.Format32bppRgb, new IntPtr(ptr)))
      {

      Bitmap dmybp = new Bitmap(bmp, new Size(w, h));
      dmybp.Save(@"RAW.bmp", System.Drawing.Imaging.ImageFormat.Bmp);
      }
      }
      }
      }
      private void CopyBytesToShort(byte byte1, byte byte2, out short retShort, int bitsPerPixel, bool isPerformShift)
      {
      short lsb, msb;
      lsb = byte1;
      msb = byte2;
      if (isPerformShift)
      {
      lsb <<= 16 - bitsPerPixel;
      msb <<= (24 - bitsPerPixel);
      }
      else
      {
      msb <<= 8;
      }
      retShort = (short)(msb | lsb);
      }


      if i run with Raw8 can get correct image.enter image description here



      But when i run other RAW file(Raw10 or Raw12 or Raw14 or Raw16...), I got fail image.
      Like this:
      enter image description here



      Please comment about about optimizing my code in C# and if there a better way to convert an image.







      c# image





      share







      New contributor




      lovecindy929 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







      New contributor




      lovecindy929 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



      share






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      lovecindy929 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      asked 7 mins ago









      lovecindy929lovecindy929

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      New contributor





      lovecindy929 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






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