private int[] HistogrammeDuCanal(Canal_e Canal)
{
int[] pixels_map = new int[Width * Height];
Verrouiller();
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
Color P = GetPixel(x, y);
Double Val = 0;
switch (Canal)
{
case Canal_e.Rouge:
Val = P.R;
break;
case Canal_e.Vert:
Val = P.G;
break;
case Canal_e.Bleu:
Val = P.B;
break;
case Canal_e.Alpha:
Val = P.A;
break;
case Canal_e.Teinte:
Val = (P.GetHue() * _PlageCouleur) / 360;
break;
case Canal_e.Saturation:
Val = P.GetSaturation() * _PlageCouleur;
break;
case Canal_e.Luminosite:
Val = P.GetBrightness() * _PlageCouleur;
break;
default:
Val = 0;
break;
}
pixels_map[x + Width * y] = Convert.ToInt32(Val);
}
}
Liberer();
int pLg = pixels_map.Length;
int[] pHistogram = new int[_PlageCouleur + 1];
for (int i = 0; i < pLg; i++)
{
int pPixel = pixels_map[i];
pHistogram[pPixel]++;
}
return pHistogram;
}
public int[] Histogramme(Canal_e Canal)
{
int[] pHistogramme = new int[_PlageCouleur + 1];
if (Canal.HasFlag(Canal_e.Rouge))
{
if (_HistRouge == null)
_HistRouge = HistogrammeDuCanal(Canal_e.Rouge);
Add(ref pHistogramme, _HistRouge);
}
if (Canal.HasFlag(Canal_e.Vert))
{
if (_HistVert == null)
_HistVert = HistogrammeDuCanal(Canal_e.Vert);
Add(ref pHistogramme, _HistVert);
}
if (Canal.HasFlag(Canal_e.Bleu))
{
if (_HistBleu == null)
_HistBleu = HistogrammeDuCanal(Canal_e.Bleu);
Add(ref pHistogramme, _HistBleu);
}
if (Canal.HasFlag(Canal_e.Alpha))
{
if (_HistAlpha == null)
_HistAlpha = HistogrammeDuCanal(Canal_e.Alpha);
Add(ref pHistogramme, _HistAlpha);
}
if (Canal.HasFlag(Canal_e.Teinte))
{
if (_HistTeinte == null)
_HistTeinte = HistogrammeDuCanal(Canal_e.Teinte);
Add(ref pHistogramme, _HistTeinte);
}
if (Canal.HasFlag(Canal_e.Saturation))
{
if (_HistSaturation == null)
_HistSaturation = HistogrammeDuCanal(Canal_e.Saturation);
Add(ref pHistogramme, _HistSaturation);
}
if (Canal.HasFlag(Canal_e.Luminosite))
{
if (_HistLuminosite == null)
_HistLuminosite = HistogrammeDuCanal(Canal_e.Luminosite);
Add(ref pHistogramme, _HistLuminosite);
}
return pHistogramme;
}
