public static Profile CreateAbstract(int nLUTPoints,
double Exposure,
double Bright,
double Contrast,
double Hue,
double Saturation,
ToneCurve [] tables,
ColorCIExyY srcWp,
ColorCIExyY destWp)
{
if (tables == null)
{
ToneCurve gamma = new ToneCurve(Math.Pow(10, -Bright / 100));
ToneCurve line = new ToneCurve(1.0);
tables = new ToneCurve [] { gamma, line, line };
}
/*
* System.Console.WriteLine ("e {0}", Exposure);
* System.Console.WriteLine ("b {0}", Bright);
* System.Console.WriteLine ("c {0}", Contrast);
* System.Console.WriteLine ("h {0}", Hue);
* System.Console.WriteLine ("s {0} {1} {2}", Saturation, srcWp, destWp);
*/
return(new Profile(NativeMethods.FCmsCreateBCHSWabstractProfile(nLUTPoints,
Exposure,
0.0, //Bright,
Contrast,
Hue,
Saturation,
ref srcWp,
ref destWp,
CopyHandles(tables))));
}
public static ColorCIExyY WhitePointFromTemperatureResource(int temp, string name)
{
ColorCIExyY wp;
//const int line_size = 0x1e;
using (var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(name)) {
string line = string.Empty;
using (var reader = new StreamReader(stream, System.Text.Encoding.ASCII)) {
for (int i = 0; i <= temp - 1000; i++)
{
line = reader.ReadLine();
}
}
//System.Console.WriteLine (line);
string [] subs = line.Split('\t');
int ptemp = int.Parse(subs [0]);
if (ptemp != temp)
{
throw new CmsException($"{ptemp} != {temp}");
}
double x = double.Parse(subs [1]);
double y = double.Parse(subs [2]);
wp = new ColorCIExyY(x, y, 1.0);
return(wp);
}
}
public static Profile CreateGray(ColorCIExyY whitePoint, ToneCurve transfer)
{
if (transfer == null)
{
return(new Profile(NativeMethods.CmsCreateGrayProfile(ref whitePoint, new ToneCurve(2.2).Handle)));
}
return(new Profile(NativeMethods.CmsCreateGrayProfile(ref whitePoint, transfer.Handle)));
}
public static extern IntPtr FCmsCreateBCHSWabstractProfile(int nLUTPoints,
double Exposure,
double Bright,
double Contrast,
double Hue,
double Saturation,
ref ColorCIExyY src_wp,
ref ColorCIExyY dest_wp,
HandleRef [] curves);
public static Profile CreateAlternateRgb()
{
// FIXME I'm basing this off the values set in the camera
// exif data when the adobe profile is selected. They could
// easily be off
var wp = new ColorCIExyY(.3127, .329, 1.0);
var primaries = new ColorCIExyYTriple(
new ColorCIExyY(.64, .33, 1.0),
new ColorCIExyY(.21, .71, 1.0),
new ColorCIExyY(.15, .06, 1.0));
var tc = new ToneCurve(2.2);
var tcs = new ToneCurve [] { tc, tc, tc, tc };
return(new Profile(wp, primaries, tcs));
}
public static Profile CreateAbstract(int nLUTPoints, double Exposure, double Bright, double Contrast, double Hue,
double Saturation, int TempSrc, int TempDest)
{
#if true
var gamma = new ToneCurve(Math.Pow(10, -Bright / 100));
var line = new ToneCurve(1.0);
var tables = new ToneCurve [] { gamma, line, line };
return(CreateAbstract(nLUTPoints, Exposure, 0.0, Contrast, Hue, Saturation, tables,
ColorCIExyY.WhitePointFromTemperature(TempSrc),
ColorCIExyY.WhitePointFromTemperature(TempDest)));
#else
GammaTable [] tables = null;
return(CreateAbstract(nLUTPoints, Exposure, Bright, Contrast, Hue, Saturation, tables,
ColorCIExyY.WhitePointFromTemperature(TempSrc),
ColorCIExyY.WhitePointFromTemperature(TempDest)));
#endif
}
public ColorCIExyYTriple(ColorCIExyY red, ColorCIExyY green, ColorCIExyY blue)
{
Red = red;
Green = green;
Blue = blue;
}
public static extern void CmsxyY2XYZ(out ColorCIEXYZ dest, ref ColorCIExyY src);
public ColorCIELab ToLab(ColorCIExyY wp)
{
return(ToXYZ().ToLab(wp));
}
public static Profile CreateAlternateRgb()
{
// FIXME I'm basing this off the values set in the camera
// exif data when the adobe profile is selected. They could
// easily be off
ColorCIExyY wp = new ColorCIExyY (.3127, .329, 1.0);
ColorCIExyYTriple primaries = new ColorCIExyYTriple (
new ColorCIExyY (.64, .33, 1.0),
new ColorCIExyY (.21, .71, 1.0),
new ColorCIExyY (.15, .06, 1.0));
ToneCurve tc = new ToneCurve (2.2);
ToneCurve [] tcs = new ToneCurve [] { tc, tc, tc, tc};
return new Profile (wp, primaries, tcs);
}
public static extern IntPtr CmsCreateRGBProfile(out ColorCIExyY whitepoint, out ColorCIExyYTriple primaries, HandleRef [] transfer_function);
public ColorCIELab ToLab(ColorCIExyY wp)
{
return ToXYZ ().ToLab (wp);
}
public static ColorCIExyY WhitePointFromTemperatureResource(int temp, string name)
{
ColorCIExyY wp;
//const int line_size = 0x1e;
using (Stream stream = Assembly.GetExecutingAssembly ().GetManifestResourceStream (name)) {
var reader = new StreamReader (stream, System.Text.Encoding.ASCII);
string line = null;
for (int i = 0; i <= temp - 1000; i++) {
line = reader.ReadLine ();
}
//System.Console.WriteLine (line);
string [] subs = line.Split ('\t');
int ptemp = int.Parse (subs [0]);
if (ptemp != temp)
throw new CmsException (String.Format ("{0} != {1}", ptemp, temp));
double x = double.Parse (subs [1]);
double y = double.Parse (subs [2]);
wp = new ColorCIExyY (x, y, 1.0);
return wp;
}
}
public static extern IntPtr CmsCreateLabProfile(out ColorCIExyY WhitePoint);
public static extern IntPtr CmsCreateGrayProfile(ref ColorCIExyY white_point,
HandleRef transfer_function);
public static extern IntPtr FCmsCreateBCHSWabstractProfile(int nLUTPoints, double Exposure, double Bright, double Contrast, double Hue, double Saturation, ref ColorCIExyY src_wp, ref ColorCIExyY dest_wp, HandleRef [] curves);
public static extern IntPtr CmsCreateGrayProfile(ref ColorCIExyY white_point, HandleRef transfer_function);
public static extern void CmsXYZ2xyY(out ColorCIExyY dest, ref ColorCIEXYZ source);
public static extern void CmsxyY2XYZ(out ColorCIEXYZ dest, ref ColorCIExyY src);
public static extern bool CmsWhitePointFromTemp(int TempSrc, out ColorCIExyY white_point);
public static extern bool CmsWhitePointFromTemp(int TempSrc, out ColorCIExyY white_point);
public static Profile CreateLab(ColorCIExyY wp)
{
return new Profile (NativeMethods.CmsCreateLabProfile (out wp));
}
public Cms.Profile GetProfile ()
{
Cms.ColorCIExyY whitepoint = new Cms.ColorCIExyY (0, 0, 0);
Cms.ColorCIExyYTriple primaries = new Cms.ColorCIExyYTriple (whitepoint, whitepoint, whitepoint);
Cms.GammaTable [] transfer = null;
int bits_per_sample = 8;
double gamma = 2.2;
foreach (DirectoryEntry e in entries) {
switch (e.Id) {
case TagId.InterColorProfile:
try {
return new Cms.Profile (e.RawData);
} catch (System.Exception ex) {
System.Console.WriteLine (ex);
}
break;
case TagId.ColorSpace:
switch ((ColorSpace)e.ValueAsLong [0]) {
case ColorSpace.StandardRGB:
return Cms.Profile.CreateStandardRgb ();
case ColorSpace.AdobeRGB:
return Cms.Profile.CreateAlternateRgb ();
case ColorSpace.Uncalibrated:
System.Console.WriteLine ("Uncalibrated colorspace");
break;
}
break;
case TagId.WhitePoint:
Rational [] white = e.RationalValue;
whitepoint.x = white [0].Value;
whitepoint.y = white [1].Value;
whitepoint.Y = 1.0;
break;
case TagId.PrimaryChromaticities:
Rational [] colors = e.RationalValue;
primaries.Red.x = colors [0].Value;
primaries.Red.y = colors [1].Value;
primaries.Red.Y = 1.0;
primaries.Green.x = colors [2].Value;
primaries.Green.y = colors [3].Value;
primaries.Green.Y = 1.0;
primaries.Blue.x = colors [4].Value;
primaries.Blue.y = colors [5].Value;
primaries.Blue.Y = 1.0;
break;
case TagId.TransferFunction:
ushort [] trns = e.ShortValue;
ushort gamma_count = (ushort) (1 << bits_per_sample);
Cms.GammaTable [] tables = new Cms.GammaTable [3];
System.Console.WriteLine ("Parsing transfer function: count = {0}", trns.Length);
// FIXME we should use the TransferRange here
// FIXME we should use bits per sample here
for (int c = 0; c < 3; c++) {
tables [c] = new Cms.GammaTable (trns, c * gamma_count, gamma_count);
}
transfer = tables;
break;
case TagId.ExifIfdPointer:
SubdirectoryEntry exif = (SubdirectoryEntry) e;
DirectoryEntry ee = exif.Directory [0].Lookup ((int)TagId.Gamma);
if (ee == null)
break;
Rational rgamma = ee.RationalValue [0];
gamma = rgamma.Value;
break;
}
}
if (transfer == null) {
Cms.GammaTable basic = new Cms.GammaTable (1 << bits_per_sample, gamma);
transfer = new Cms.GammaTable [] { basic, basic, basic };
}
// if we didn't get a white point or primaries, give up
if (whitepoint.Y != 1.0 || primaries.Red.Y != 1.0)
return null;
return new Cms.Profile (whitepoint, primaries, transfer);
}
public static extern IntPtr CmsCreateRGBProfile(out ColorCIExyY whitepoint, out ColorCIExyYTriple primaries,
HandleRef [] transfer_function);
public ColorCIExyYTriple(ColorCIExyY red, ColorCIExyY green, ColorCIExyY blue)
{
Red = red;
Green = green;
Blue = blue;
}
public static extern void CmsXYZ2xyY(out ColorCIExyY dest, ref ColorCIEXYZ source);
public static Profile CreateAbstract(int nLUTPoints,
double Exposure,
double Bright,
double Contrast,
double Hue,
double Saturation,
ToneCurve [] tables,
ColorCIExyY srcWp,
ColorCIExyY destWp)
{
if (tables == null) {
ToneCurve gamma = new ToneCurve (Math.Pow (10, -Bright/100));
ToneCurve line = new ToneCurve (1.0);
tables = new ToneCurve [] { gamma, line, line };
}
/*
System.Console.WriteLine ("e {0}", Exposure);
System.Console.WriteLine ("b {0}", Bright);
System.Console.WriteLine ("c {0}", Contrast);
System.Console.WriteLine ("h {0}", Hue);
System.Console.WriteLine ("s {0} {1} {2}", Saturation, srcWp, destWp);
*/
return new Profile (NativeMethods.FCmsCreateBCHSWabstractProfile (nLUTPoints,
Exposure,
0.0, //Bright,
Contrast,
Hue,
Saturation,
ref srcWp,
ref destWp,
CopyHandles (tables)));
}
public static Profile CreateLab(ColorCIExyY wp)
{
return(new Profile(NativeMethods.CmsCreateLabProfile(out wp)));
}
public static Profile CreateGray(ColorCIExyY whitePoint, ToneCurve transfer)
{
if (transfer == null)
return new Profile (NativeMethods.CmsCreateGrayProfile (ref whitePoint, new ToneCurve (2.2).Handle));
return new Profile (NativeMethods.CmsCreateGrayProfile (ref whitePoint, transfer.Handle));
}
public static extern IntPtr CmsCreateLabProfile(out ColorCIExyY WhitePoint);
public Profile(ColorCIExyY whitepoint, ColorCIExyYTriple primaries, ToneCurve [] gamma)
{
Handle = new HandleRef (this, NativeMethods.CmsCreateRGBProfile (out whitepoint, out primaries, CopyHandles (gamma)));
}
public Profile(ColorCIExyY whitepoint, ColorCIExyYTriple primaries, ToneCurve[] gamma)
{
Handle = new HandleRef(this, NativeMethods.CmsCreateRGBProfile(out whitepoint, out primaries, CopyHandles(gamma)));
}
