/// <summary>
/// Read image flags from the file
/// </summary>
public void ReadFlags(BufferReader reader, int offset)
{
CalibRange_min = reader.ReadSingleBE(offset + 92);
CalibRange_max = reader.ReadSingleBE(offset + 96);
Device = reader.ReadNullTerminatedString(offset + 142, 12);
DeviceSerial = reader.ReadNullTerminatedString(offset + 186, 16);
Optics = reader.ReadNullTerminatedString(offset + 202, 32);
OpticsResolution = reader.ReadNullTerminatedString(offset + 234, 32);
OpticsText = reader.ReadNullTerminatedString(offset + 554, 48);
ShotRange_start_ERROR = reader.ReadSingleBE(offset + 532);
ShotRange_size = reader.ReadSingleBE(offset + 536);
TimeStamp_Raw = reader.ReadDoubleBE(8, offset + 540);
TimeStampMilliseconds = reader.ReadIntBE(offset + 548);
TimeStamp = Double2DateTime(TimeStamp_Raw, TimeStampMilliseconds);
}
/// <summary>
/// Read the image data from file
/// </summary>
/// <returns></returns>
private float[] ReadImageData(BufferReader reader, int bindata_offset, int width, int height, int palette_offset, int useCompression)
{
int data_size = width * height; //- count of pixles
bool useComp = (useCompression == 1);
int pixelCount = data_size;
float[] matrixData = new float[pixelCount];
int matrixDataPos = 0;
int v1_pos = bindata_offset;
int v2_pos = v1_pos + width * height; //- used if data are compressed
//byte data_v1 = &bindata[v1_pos];
//unsigned char* data_v2 = &bindata[v2_pos];
int v1 = 0;
int v2 = 0;
float[] Palette = ReadPallet(reader, palette_offset);
int v2_count = 0;
float v = 0;
float f;
if (!useComp)
{
for (int i = pixelCount; i > 0; i--)
{
//- read values
v1 = reader.ReadByte(v1_pos);
v1_pos++;
v2 = reader.ReadByte(v1_pos);
v1_pos++;
f = (float)v1 * (1.0f / 256.0f);
//- lineare interpolation
v = Palette[v2 + 1] * f + Palette[v2] * (1.0f - f);
if (v < 0)
{
v = 0; //- oder 255
}
matrixData[matrixDataPos] = v;
matrixDataPos++;
}
}
else
{
for (int i = pixelCount; i > 0; i--)
{
//- werte lesen
if (v2_count-- < 1) //- ok... neuen wert für V2 lesen
{
v2_count = reader.ReadByte(v2_pos) - 1;
v2_pos++;
v2 = reader.ReadByte(v2_pos);
v2_pos++;
}
v1 = reader.ReadByte(v1_pos);
v1_pos++;
f = (float)v1 * (1.0f / 256.0f);
//- lineare interpolation
v = Palette[v2 + 1] * f + Palette[v2] * (1.0f - f);
if (v < 0)
{
v = 0; //- oder 255
}
matrixData[matrixDataPos] = v;
matrixDataPos++;
}
}
return(matrixData);
}
/// <summary>
/// Read a image from the file
/// </summary>
public bool ReadImage(int imageIndex)
{
System.DateTime FrameTime = System.DateTime.Now;
var reader = new BufferReader(this.reader.GetImageData(imageIndex));
if (reader.Eof)
{
return(false);
}
Width = 0;
Height = 0;
//- Image header
BytePerPixel = reader.ReadWordBE();
Compressed = reader.ReadWordBE();
Width = reader.ReadWordBE();
Height = reader.ReadWordBE();
reader.ReadIntBE(); //-- don't know - alway 0
reader.ReadWordBE(); //-- don't know - alway 0
//- dont know why but it is alwasy the width -1
if (reader.ReadWordBE() != (Width - 1))
{
logging.addError("??? value != (Height - 1)");
}
reader.ReadWordBE(); //-- don't know - alway 0
//- dont know why but it is alwasy the height -1
if (reader.ReadWordBE() != (Height - 1))
{
logging.addError("??? value != (Height - 1)");
}
reader.ReadWordBE(); //-- don't know - alway 0
reader.ReadWordBE(); //-- don't know - alway 0
Emissivity = reader.ReadSingleBE();
Distanz = reader.ReadSingleBE();
EnvironmentalTemp = reader.ReadSingleBE();
reader.ReadWordBE(); //-- don't know - always 0
reader.ReadWordBE(); //-- don't know - always 0
PathTemperature = reader.ReadSingleBE();
reader.ReadWordBE(); //-- don't know - always 0x65
reader.ReadWordBE(); //-- don't know - always 0
CenterWavelength = reader.ReadSingleBE();
reader.ReadWordBE(); //-- don't know - always 0
reader.ReadWordBE(); //-- don't know - always 0xH4080
reader.ReadWordBE(); //-- don't know - always 0x9
reader.ReadWordBE(); //-- don't know - always 0x101
if ((Width > 10000) || (Height > 10000))
{
logging.addError("Defect Irbis Image File: Image Width(" + Width + ") or Height(" + Height + ") is out of range!");
Width = 1;
Height = 1;
return(false);
}
//- liest weitere Bildinforationen aus
this.ReadFlags(reader, 1084);
Data = ReadImageData(reader, 0x6C0, Width, Height, 60, Compressed);
if (reader.Eof)
{
logging.addError("end of file!");
}
return(true);
}