public XimgGPSRational(byte[] bytes)
{
byte[] h = new byte[8]; byte[] m = new byte[8]; byte[] s = new byte[8];
Array.Copy(bytes, 0, h, 0, 8); Array.Copy(bytes, 8, m, 0, 8); Array.Copy(bytes, 16, s, 0, 8);
_hours = new XimgRational(h);
_minutes = new XimgRational(m);
_seconds = new XimgRational(s);
_degrees = _hours.ToDouble() + (_minutes.ToDouble() / 60) + (_seconds.ToDouble() / 3600);
}
public XimgParse(System.Drawing.Image image)
{
Encoding ascii = Encoding.ASCII;
_parseTags = new Dictionary <int, XimgTag>();
foreach (System.Drawing.Imaging.PropertyItem pitem in image.PropertyItems)
{
if (!ParseTags.ContainsKey(pitem.Id))
{
continue;
}
XimgTag xTag = ParseTags[pitem.Id].Clone();
string strValue = "";
object value = null;
switch (pitem.Type)
{
case 0x1:
{
#region BYTE (8-bit unsigned int)
value = pitem.Value[0];
if (pitem.Value.Length == 4)
{
strValue = "Version " + pitem.Value[0].ToString() + "." + pitem.Value[1].ToString();
}
else if (pitem.Id == 0x5 && pitem.Value[0] == 0)
{
strValue = "Sea level";
}
else
{
strValue = pitem.Value[0].ToString();
}
#endregion
}
break;
case 0x2:
{
#region ASCII (8 bit ASCII code)
strValue = ascii.GetString(pitem.Value).Trim('\0');
value = strValue;
if (pitem.Id == 0x1 || pitem.Id == 0x13)
{
if (strValue == "N")
{
strValue = "North latitude";
}
else if (strValue == "S")
{
strValue = "South latitude";
}
else
{
strValue = "n/a";
}
}
if (pitem.Id == 0x3 || pitem.Id == 0x15)
{
if (strValue == "E")
{
strValue = "East longitude";
}
else if (strValue == "W")
{
strValue = "West longitude";
}
else
{
strValue = "n/a";
}
}
if (pitem.Id == 0x9)
{
if (strValue == "A")
{
strValue = "Measurement in progress";
}
else if (strValue == "V")
{
strValue = "Measurement Interoperability";
}
else
{
strValue = "n/a";
}
}
if (pitem.Id == 0xA)
{
if (strValue == "2")
{
strValue = "2-dimensional measurement";
}
else if (strValue == "3")
{
strValue = "3-dimensional measurement";
}
else
{
strValue = "n/a";
}
}
if (pitem.Id == 0xC || pitem.Id == 0x19)
{
if (strValue == "K")
{
strValue = "Kilometers per hour";
}
else if (strValue == "M")
{
strValue = "Miles per hour";
}
else if (strValue == "N")
{
strValue = "Knots";
}
else
{
strValue = "n/a";
}
}
if (pitem.Id == 0xE || pitem.Id == 0x10 || pitem.Id == 0x17)
{
if (strValue == "T")
{
strValue = "True direction";
}
else if (strValue == "M")
{
strValue = "Magnetic direction";
}
else
{
strValue = "n/a";
}
}
#endregion
}
break;
case 0x3:
{
#region 3 = SHORT (16-bit unsigned int)
UInt16 uintval = BitConverter.ToUInt16(pitem.Value, 0);
value = uintval;
// orientation // lookup table
switch (pitem.Id)
{
case 0x8827: // ISO speed rating
strValue = "ISO-" + uintval.ToString();
break;
case 0xA217: // sensing method
{
switch (uintval)
{
case 1: strValue = "Not defined"; break;
case 2: strValue = "One-chip color area sensor"; break;
case 3: strValue = "Two-chip color area sensor"; break;
case 4: strValue = "Three-chip color area sensor"; break;
case 5: strValue = "Color sequential area sensor"; break;
case 7: strValue = "Trilinear sensor"; break;
case 8: strValue = "Color sequential linear sensor"; break;
default: strValue = " reserved"; break;
}
}
break;
case 0x8822: // Exposure program
switch (uintval)
{
case 0: strValue = "Not defined"; break;
case 1: strValue = "Manual"; break;
case 2: strValue = "Normal program"; break;
case 3: strValue = "Aperture priority"; break;
case 4: strValue = "Shutter priority"; break;
case 5: strValue = "Creative program (biased toward depth of field)"; break;
case 6: strValue = "Action program (biased toward fast shutter speed)"; break;
case 7: strValue = "Portrait mode (for closeup photos with the background out of focus)"; break;
case 8: strValue = "Landscape mode (for landscape photos with the background in focus)"; break;
default: strValue = "n/a"; break;
}
break;
case 0x9207: // metering mode
switch (uintval)
{
case 0: strValue = "unknown"; break;
case 1: strValue = "Average"; break;
case 2: strValue = "Center Weighted Average"; break;
case 3: strValue = "Spot"; break;
case 4: strValue = "MultiSpot"; break;
case 5: strValue = "Pattern"; break;
case 6: strValue = "Partial"; break;
case 255: strValue = "Other"; break;
default: strValue = "n/a"; break;
}
break;
case 0x9208: // Light source
{
switch (uintval)
{
case 0: strValue = "unknown"; break;
case 1: strValue = "Daylight"; break;
case 2: strValue = "Fluorescent"; break;
case 3: strValue = "Tungsten (incandescent light)"; break;
case 4: strValue = "Flash"; break;
case 9: strValue = "Fine weather"; break;
case 10: strValue = "Cloudy weather"; break;
case 11: strValue = "Shade"; break;
case 12: strValue = "Daylight fluorescent (D 5700 – 7100K)"; break;
case 13: strValue = "Day white fluorescent (N 4600 – 5400K)"; break;
case 14: strValue = "Cool white fluorescent (W 3900 – 4500K)"; break;
case 15: strValue = "White fluorescent (WW 3200 – 3700K)"; break;
case 17: strValue = "Standard light A"; break;
case 18: strValue = "Standard light B"; break;
case 19: strValue = "Standard light C"; break;
case 20: strValue = "D55"; break;
case 21: strValue = "D65"; break;
case 22: strValue = "D75"; break;
case 23: strValue = "D50"; break;
case 24: strValue = "ISO studio tungsten"; break;
case 255: strValue = "ISO studio tungsten"; break;
default: strValue = "other light source"; break;
}
}
break;
case 0x9209: // Flash
{
switch (uintval)
{
case 0x0: strValue = "Flash did not fire"; break;
case 0x1: strValue = "Flash fired"; break;
case 0x5: strValue = "Strobe return light not detected"; break;
case 0x7: strValue = "Strobe return light detected"; break;
case 0x9: strValue = "Flash fired, compulsory flash mode"; break;
case 0xD: strValue = "Flash fired, compulsory flash mode, return light not detected"; break;
case 0xF: strValue = "Flash fired, compulsory flash mode, return light detected"; break;
case 0x10: strValue = "Flash did not fire, compulsory flash mode"; break;
case 0x18: strValue = "Flash did not fire, auto mode"; break;
case 0x19: strValue = "Flash fired, auto mode"; break;
case 0x1D: strValue = "Flash fired, auto mode, return light not detected"; break;
case 0x1F: strValue = "Flash fired, auto mode, return light detected"; break;
case 0x20: strValue = "No flash function"; break;
case 0x41: strValue = "Flash fired, red-eye reduction mode"; break;
case 0x45: strValue = "Flash fired, red-eye reduction mode, return light not detected"; break;
case 0x47: strValue = "Flash fired, red-eye reduction mode, return light detected"; break;
case 0x49: strValue = "Flash fired, compulsory flash mode, red-eye reduction mode"; break;
case 0x4D: strValue = "Flash fired, compulsory flash mode, red-eye reduction mode, return light not detected"; break;
case 0x4F: strValue = "Flash fired, compulsory flash mode, red-eye reduction mode, return light detected"; break;
case 0x59: strValue = "Flash fired, auto mode, red-eye reduction mode"; break;
case 0x5D: strValue = "Flash fired, auto mode, return light not detected, red-eye reduction mode"; break;
case 0x5F: strValue = "Flash fired, auto mode, return light detected, red-eye reduction mode"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0x0128: //ResolutionUnit
{
switch (uintval)
{
case 2: strValue = "Inch"; break;
case 3: strValue = "Centimeter"; break;
default: strValue = "No Unit"; break;
}
}
break;
case 0xA409: // Saturation
{
switch (uintval)
{
case 0: strValue = "Normal"; break;
case 1: strValue = "Low saturation"; break;
case 2: strValue = "High saturation"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0xA40A: // Sharpness
{
switch (uintval)
{
case 0: strValue = "Normal"; break;
case 1: strValue = "Soft"; break;
case 2: strValue = "Hard"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0xA408: // Contrast
{
switch (uintval)
{
case 0: strValue = "Normal"; break;
case 1: strValue = "Soft"; break;
case 2: strValue = "Hard"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0x103: // Compression
{
switch (uintval)
{
case 1: strValue = "Uncompressed"; break;
case 6: strValue = "JPEG compression (thumbnails only)"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0x106: // PhotometricInterpretation
{
switch (uintval)
{
case 2: strValue = "RGB"; break;
case 6: strValue = "YCbCr"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0x112: // Orientation
{
switch (uintval)
{
case 1: strValue = "The 0th row is at the visual top of the image, and the 0th column is the visual left-hand side."; break;
case 2: strValue = "The 0th row is at the visual top of the image, and the 0th column is the visual right-hand side."; break;
case 3: strValue = "The 0th row is at the visual bottom of the image, and the 0th column is the visual right-hand side."; break;
case 4: strValue = "The 0th row is at the visual bottom of the image, and the 0th column is the visual left-hand side."; break;
case 5: strValue = "The 0th row is the visual left-hand side of the image, and the 0th column is the visual top."; break;
case 6: strValue = "The 0th row is the visual right-hand side of the image, and the 0th column is the visual top."; break;
case 7: strValue = "The 0th row is the visual right-hand side of the image, and the 0th column is the visual bottom."; break;
case 8: strValue = "The 0th row is the visual left-hand side of the image, and the 0th column is the visual bottom."; break;
default: strValue = "n/a"; break;
}
}
break;
case 0x213: // YCbCrPositioning
{
switch (uintval)
{
case 1: strValue = "centered"; break;
case 6: strValue = "co-sited"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0xA001: // ColorSpace
{
switch (uintval)
{
case 1: strValue = "sRGB"; break;
case 0xFFFF: strValue = "Uncalibrated"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0xA401: // CustomRendered
{
switch (uintval)
{
case 0: strValue = "Normal process"; break;
case 1: strValue = "Custom process"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0xA402: // ExposureMode
{
switch (uintval)
{
case 0: strValue = "Auto exposure"; break;
case 1: strValue = "Manual exposure"; break;
case 2: strValue = "Auto bracket"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0xA403: // WhiteBalance
{
switch (uintval)
{
case 0: strValue = "Auto white balance"; break;
case 1: strValue = "Manual white balance"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0xA406: // SceneCaptureType
{
switch (uintval)
{
case 0: strValue = "Standard"; break;
case 1: strValue = "Landscape"; break;
case 2: strValue = "Portrait"; break;
case 3: strValue = "Night scene"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0xA40C: // SubjectDistanceRange
{
switch (uintval)
{
case 0: strValue = "unknown"; break;
case 1: strValue = "Macro"; break;
case 2: strValue = "Close view"; break;
case 3: strValue = "Distant view"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0x1E: // GPSDifferential
{
switch (uintval)
{
case 0: strValue = "Measurement without differential correction"; break;
case 1: strValue = "Differential correction applied"; break;
default: strValue = "n/a"; break;
}
}
break;
case 0xA405: // FocalLengthIn35mmFilm
strValue = uintval.ToString() + " mm";
break;
default: //
strValue = uintval.ToString();
break;
}
#endregion
}
break;
case 0x4:
{
#region 4 = LONG (32-bit unsigned int)
value = BitConverter.ToUInt32(pitem.Value, 0);
strValue = value.ToString();
#endregion
}
break;
case 0x5:
{
#region 5 = RATIONAL (Two LONGs, unsigned)
XimgURational rat = new XimgURational(pitem.Value);
value = rat;
switch (pitem.Id)
{
case 0x9202: // ApertureValue
strValue = "F/" + Math.Round(Math.Pow(Math.Sqrt(2), rat.ToDouble()), 2).ToString();
break;
case 0x9205: // MaxApertureValue
strValue = "F/" + Math.Round(Math.Pow(Math.Sqrt(2), rat.ToDouble()), 2).ToString();
break;
case 0x920A: // FocalLength
strValue = rat.ToDouble().ToString() + " mm";
break;
case 0x829D: // F-number
strValue = "F/" + rat.ToDouble().ToString();
break;
case 0x11A: // Xresolution
strValue = rat.ToDouble().ToString();
break;
case 0x11B: // Yresolution
strValue = rat.ToDouble().ToString();
break;
case 0x829A: // ExposureTime
strValue = rat.ToString() + " sec";
break;
case 0x2: // GPSLatitude
value = new XimgGPSRational(pitem.Value);
strValue = value.ToString();
break;
case 0x4: // GPSLongitude
value = new XimgGPSRational(pitem.Value);
strValue = value.ToString();
break;
case 0x6: // GPSAltitude
strValue = rat.ToDouble() + " meters";
break;
case 0xA404: // Digital Zoom Ratio
strValue = rat.ToDouble().ToString();
if (strValue == "0")
{
strValue = "none";
}
break;
case 0xB: // GPSDOP
strValue = rat.ToDouble().ToString();
break;
case 0xD: // GPSSpeed
strValue = rat.ToDouble().ToString();
break;
case 0xF: // GPSTrack
strValue = rat.ToDouble().ToString();
break;
case 0x11: // GPSImgDir
strValue = rat.ToDouble().ToString();
break;
case 0x14: // GPSDestLatitude
value = new XimgGPSRational(pitem.Value);
strValue = value.ToString();
break;
case 0x16: // GPSDestLongitude
value = new XimgGPSRational(pitem.Value);
strValue = value.ToString();
break;
case 0x18: // GPSDestBearing
strValue = rat.ToDouble().ToString();
break;
case 0x1A: // GPSDestDistance
strValue = rat.ToDouble().ToString();
break;
case 0x7: // GPSTimeStamp
value = new XimgGPSRational(pitem.Value);
strValue = (value as XimgGPSRational).ToString(":");
break;
default:
strValue = rat.ToString();
break;
}
#endregion
}
break;
case 0x7:
{
#region UNDEFINED (8-bit)
value = pitem.Value[0];
switch (pitem.Id)
{
case 0xA300: //FileSource
{
if (pitem.Value[0] == 3)
{
strValue = "DSC";
}
else
{
strValue = "n/a";
}
break;
}
case 0xA301: //SceneType
if (pitem.Value[0] == 1)
{
strValue = "A directly photographed image";
}
else
{
strValue = "n/a";
}
break;
case 0x9000: // Exif Version
strValue = ascii.GetString(pitem.Value).Trim('\0');
break;
case 0xA000: // Flashpix Version
strValue = ascii.GetString(pitem.Value).Trim('\0');
if (strValue == "0100")
{
strValue = "Flashpix Format Version 1.0";
}
else
{
strValue = "n/a";
}
break;
case 0x9101: //ComponentsConfiguration
strValue = GetComponentsConfig(pitem.Value);
break;
case 0x927C: //MakerNote
strValue = ascii.GetString(pitem.Value).Trim('\0');
break;
case 0x9286: //UserComment
strValue = ascii.GetString(pitem.Value).Trim('\0');
break;
case 0x1B: //GPS Processing Method
strValue = ascii.GetString(pitem.Value).Trim('\0');
break;
case 0x1C: //GPS Area Info
strValue = ascii.GetString(pitem.Value).Trim('\0');
break;
default:
strValue = "-";
break;
}
#endregion
}
break;
case 0x9:
{
#region 9 = SLONG (32-bit int)
value = BitConverter.ToInt32(pitem.Value, 0);
strValue = value.ToString();
#endregion
}
break;
case 0xA:
{
#region 10 = SRATIONAL (Two SLONGs, signed)
XimgRational rat = new XimgRational(pitem.Value);
value = rat;
switch (pitem.Id)
{
case 0x9201: // ShutterSpeedValue
strValue = "1/" + Math.Round(Math.Pow(2, rat.ToDouble()), 2).ToString();
break;
case 0x9203: // BrightnessValue
strValue = Math.Round(rat.ToDouble(), 4).ToString();
break;
case 0x9204: // ExposureBiasValue
strValue = Math.Round(rat.ToDouble(), 2).ToString() + " eV";
break;
default:
strValue = rat.ToString();
break;
}
#endregion
}
break;
}
xTag.Value = value;
xTag.StrValue = strValue;
xTag.ItemType = pitem.Type;
_parseTags.Add(xTag.Id, xTag);
}
}
