/// <summary>
/// アプリ側で保持しているカーブ情報を使用して疑似着色をおこなう
/// カーブ情報にnullが設定されている場合は、デフォルトのカーブ情報を使用する
/// </summary>
/// <param name="srcBmp">加工元の画像</param>
/// <param name="curve">カーブ情報</param>
/// <returns>加工後の画像</returns>
public static WriteableBitmap Effect(WriteableBitmap srcBmp, Curve curve)
{
Curve applyCurve = null;
if (curve != null)
{
applyCurve = curve;
}
else
{
var curAssembly = Assembly.GetExecutingAssembly();
var strm = curAssembly.GetManifestResourceStream("GenericVideoFilter.default_hosei.cur");
applyCurve = new Curve(strm, CurveTypes.Gimp);
}
var filter = new GiCoCu(applyCurve);
return filter.Process(srcBmp);
}
private static Curve GetGimpCurve(Stream strm)
{
var curves = new Curve();
int[,] index = new int[5, 17];
int[,] value = new int[5, 17];
var reader = new StreamReader(strm);
// ヘッダーがGIMP形式になっているかチェック
var header = reader.ReadLine();
if ("# GIMP Curves File" != header)
{
throw new IOException("not gimp curves file");
}
for (int i = 0; i < 5; i++)
{
string line = reader.ReadLine();
var values = line.Split(' ');
for (int j = 0, k = 0; j < 17; j++)
{
index[i, j] = int.Parse(values[k]);
k++;
value[i, j] = int.Parse(values[k]);
k++;
Debug.WriteLine("index: {0}, value: {0}", index[i, j], value[i, j]);
}
}
for (int i = 0; i < 5; i++)
{
for (int j = 0; j < 17; j++)
{
curves.Points[i, j, 0] = index[i, j];
curves.Points[i, j, 1] = value[i, j];
}
}
// make LUTs
for (int i = 0; i < 5; i++)
{
curves.Calculate(i);
}
return curves;
}
public GiCoCu(Curve curve)
{
_curve = curve;
}