public string Execute(FileItem item, string infile, string dest, ValuePairEnumerator configData)
{
var conf = new EnhanceViewModel(configData);
dest = Path.Combine(Path.GetDirectoryName(dest), Path.GetFileNameWithoutExtension(dest) + ".jpg");
using (MagickImage image = new MagickImage(infile))
{
if (conf.Normalize)
image.Normalize();
if (conf.AutoGamma)
image.AutoGamma();
image.BrightnessContrast(new Percentage(conf.Brightness), new Percentage(conf.Contrast));
if (conf.SContrast > 0)
image.SigmoidalContrast(true, conf.SContrast);
if (conf.Edge)
image.AdaptiveSharpen();
if (conf.Sharpen > 0)
image.UnsharpMask(1.5, 1.5, conf.Sharpen/100.0, 0.2);
image.Format = MagickFormat.Jpeg;
image.Write(dest);
}
return dest;
}
public void GenerateCache(FileItem fileItem)
{
bool deleteFile = false;
if (fileItem == null)
return;
if (!File.Exists(fileItem.FileName))
return;
if ((File.Exists(fileItem.LargeThumb) && File.Exists(fileItem.SmallThumb)) && File.Exists(fileItem.InfoFile))
return;
if (fileItem.Loading)
return;
fileItem.Loading = true;
PhotoUtils.WaitForFile(fileItem.FileName);
string filename = fileItem.FileName;
if (fileItem.IsMovie)
{
try
{
string ffmpeg_exe = Path.Combine(Settings.ApplicationFolder, "ffmpeg.exe");
if (File.Exists(ffmpeg_exe))
{
string thumb = Path.Combine(Path.GetDirectoryName(fileItem.FileName),
Path.GetFileNameWithoutExtension(fileItem.FileName) + ".thumb.jpg");
PhotoUtils.RunAndWait(ffmpeg_exe, String.Format("-i \"{0}\" -ss 00:00:01.000 -f image2 -vframes 1 \"{1}\"", fileItem.FileName, thumb));
if (File.Exists(thumb))
{
deleteFile = true;
filename = thumb;
}
}
}
catch (Exception exception)
{
Log.Error("Error get video thumb", exception);
}
}
if (fileItem.IsRaw)
{
try
{
string dcraw_exe = Path.Combine(Settings.ApplicationFolder, "dcraw.exe");
if (File.Exists(dcraw_exe))
{
string thumb = Path.Combine(Path.GetTempPath(),
Path.GetFileNameWithoutExtension(fileItem.FileName) + ".thumb.jpg");
PhotoUtils.RunAndWait(dcraw_exe,
string.Format(" -e -O \"{0}\" \"{1}\"", thumb, fileItem.FileName));
if (File.Exists(thumb))
{
deleteFile = true;
filename = thumb;
}
}
}
catch (Exception exception)
{
Log.Error("Error get dcraw thumb", exception);
}
}
GetMetadata(fileItem);
try
{
using (MagickImage image = new MagickImage(filename))
{
fileItem.FileInfo.SetSize(image.Width, image.Height);
double dw = (double)LargeThumbSize / image.Width;
image.FilterType = FilterType.Box;
image.Thumbnail((int)(image.Width * dw), (int)(image.Height * dw));
if (!ServiceProvider.Settings.DisableHardwareAccelerationNew)
image.UnsharpMask(1, 1, 0.5, 0.1);
PhotoUtils.CreateFolder(fileItem.LargeThumb);
image.Write(fileItem.LargeThumb);
fileItem.IsLoaded = true;
fileItem.Loading = false;
dw = (double)SmallThumbSize / image.Width;
image.Thumbnail((int)(image.Width * dw), (int)(image.Height * dw));
if (!ServiceProvider.Settings.DisableHardwareAccelerationNew)
image.UnsharpMask(1, 1, 0.5, 0.1);
PhotoUtils.CreateFolder(fileItem.SmallThumb);
image.Write(fileItem.SmallThumb);
fileItem.Thumbnail = LoadImage(fileItem.SmallThumb);
}
fileItem.SaveInfo();
SetImageInfo(fileItem);
if (deleteFile)
File.Delete(filename);
OnMetaDataUpdated(fileItem);
}
catch (Exception exception)
{
Log.Error("Error generating cache " + fileItem.FileName, exception);
}
fileItem.Loading = false;
}
private void ExecuteUnsharpMask(XmlElement element, MagickImage image)
{
Hashtable arguments = new Hashtable();
foreach (XmlAttribute attribute in element.Attributes)
{
if (attribute.Name == "amount")
arguments["amount"] = Variables.GetValue<double>(attribute);
else if (attribute.Name == "channels")
arguments["channels"] = Variables.GetValue<Channels>(attribute);
else if (attribute.Name == "radius")
arguments["radius"] = Variables.GetValue<double>(attribute);
else if (attribute.Name == "sigma")
arguments["sigma"] = Variables.GetValue<double>(attribute);
else if (attribute.Name == "threshold")
arguments["threshold"] = Variables.GetValue<double>(attribute);
}
if (OnlyContains(arguments, "radius", "sigma"))
image.UnsharpMask((double)arguments["radius"], (double)arguments["sigma"]);
else if (OnlyContains(arguments, "radius", "sigma", "amount", "threshold"))
image.UnsharpMask((double)arguments["radius"], (double)arguments["sigma"], (double)arguments["amount"], (double)arguments["threshold"]);
else if (OnlyContains(arguments, "radius", "sigma", "amount", "threshold", "channels"))
image.UnsharpMask((double)arguments["radius"], (double)arguments["sigma"], (double)arguments["amount"], (double)arguments["threshold"], (Channels)arguments["channels"]);
else if (OnlyContains(arguments, "radius", "sigma", "channels"))
image.UnsharpMask((double)arguments["radius"], (double)arguments["sigma"], (Channels)arguments["channels"]);
else
throw new ArgumentException("Invalid argument combination for 'unsharpMask', allowed combinations are: [radius, sigma] [radius, sigma, amount, threshold] [radius, sigma, amount, threshold, channels] [radius, sigma, channels]");
}
public void Test_UnsharpMask()
{
using (MagickImage image = new MagickImage(Files.NoisePNG))
{
image.UnsharpMask(7.0, 3.0);
using (MagickImage original = new MagickImage(Files.NoisePNG))
{
#if Q8 || Q16
Assert.AreEqual(0.06476, original.Compare(image, ErrorMetric.RootMeanSquared), 0.00002);
#elif Q16HDRI
Assert.AreEqual(0.10234, original.Compare(image, ErrorMetric.RootMeanSquared), 0.00001);
#else
#error Not implemented!
#endif
}
}
}
