private byte[] GetArwBitmap()
{
TiffIFD tagSub = _header.IFDs[0];
var tIImageStartOffset = (from t in tagSub.tiffTags where t.TagID == 513 select t).FirstOrDefault().DataOffset;
var tIImageLengthOffset = (from t in tagSub.tiffTags where t.TagID == 514 select t).FirstOrDefault().DataOffset;
return(CreateBitmap(tIImageStartOffset, tIImageLengthOffset, tagSub));
}
private byte[] CreateBitmap(uint tIImageStartOffset, uint tIImageLengthOffset, TiffIFD tiffIFD)
{
byte[] Img = new byte[tIImageLengthOffset];
Array.Copy(_content, tIImageStartOffset, Img, 0, tIImageLengthOffset);
if (tiffIFD.Compression == 1 && tiffIFD.BitsPerSample[0] == 8 && tiffIFD.BitsPerSample[1] == 8 && tiffIFD.BitsPerSample[2] == 8)
{
return(ImageHelper.ConvertFromUncompressed((int)tiffIFD.Width, (int)tiffIFD.Height, ref Img));
}
if (tiffIFD.Compression == 1 && tiffIFD.BitsPerSample.Length == 1 && tiffIFD.BitsPerSample[0] == 16)
{
//byte[] bs = ImageHelper.ConvertFrom16bits565((int)tiffIFD.Width, (int)tiffIFD.Height, ref Img);
byte[] bs = ImageHelper.ConvertFromCFA((int)tiffIFD.Width, (int)tiffIFD.Height, ref Img);
//bs = ImageHelper.BayerDemosaic24((int)tiffIFD.Width, (int)tiffIFD.Height, ref bs);
//bs = ImageHelper.BayerDemosaic24((int)tiffIFD.Width, (int)tiffIFD.Height, ref bs);
//byte[] bs = ImageHelper.ConvertFromCFA((int)tiffIFD.Width, (int)tiffIFD.Height, ref Img);
////return bs;
//bs = ImageHelper.BayerDemosaic24((int)tiffIFD.Width, (int)tiffIFD.Height, ref bs);
return(ImageHelper.byteArrayToBMP((int)tiffIFD.Width, (int)tiffIFD.Height, ref bs));
}
if (tiffIFD.Compression == 1 && tiffIFD.BitsPerSample.Length == 1 && tiffIFD.BitsPerSample[0] == 12)
{
return(ImageHelper.byteArrayToBMP((int)tiffIFD.Width, (int)tiffIFD.Height, ref Img));
}
return(Img);
}
