public Image <Rgba32> TryCreateRGBSpectralImage()
{
if (this.ComponentCount != 3)
{
return(null);
}
LibJpegTools.ComponentData c0 = this.Components[0];
LibJpegTools.ComponentData c1 = this.Components[1];
LibJpegTools.ComponentData c2 = this.Components[2];
if (c0.Size != c1.Size || c1.Size != c2.Size)
{
return(null);
}
var result = new Image <Rgba32>(c0.WidthInBlocks * 8, c0.HeightInBlocks * 8);
for (int by = 0; by < c0.HeightInBlocks; by++)
{
for (int bx = 0; bx < c0.WidthInBlocks; bx++)
{
this.WriteToImage(bx, by, result);
}
}
return(result);
}
internal void WriteToImage(int bx, int by, Image <Rgba32> image)
{
LibJpegTools.ComponentData c0 = this.Components[0];
LibJpegTools.ComponentData c1 = this.Components[1];
LibJpegTools.ComponentData c2 = this.Components[2];
Block8x8 block0 = c0.SpectralBlocks[bx, by];
Block8x8 block1 = c1.SpectralBlocks[bx, by];
Block8x8 block2 = c2.SpectralBlocks[bx, by];
float d0 = c0.MaxVal - c0.MinVal;
float d1 = c1.MaxVal - c1.MinVal;
float d2 = c2.MaxVal - c2.MinVal;
for (int y = 0; y < 8; y++)
{
for (int x = 0; x < 8; x++)
{
float val0 = c0.GetBlockValue(block0, x, y);
float val1 = c0.GetBlockValue(block1, x, y);
float val2 = c0.GetBlockValue(block2, x, y);
var v = new Vector4(val0, val1, val2, 1);
Rgba32 color = default;
color.FromVector4(v);
int yy = (by * 8) + y;
int xx = (bx * 8) + x;
image[xx, yy] = color;
}
}
}
public bool Equals(SpectralData other)
{
if (other is null)
{
return(false);
}
if (ReferenceEquals(this, other))
{
return(true);
}
if (this.ComponentCount != other.ComponentCount)
{
return(false);
}
for (int i = 0; i < this.ComponentCount; i++)
{
LibJpegTools.ComponentData a = this.Components[i];
LibJpegTools.ComponentData b = other.Components[i];
if (!a.Equals(b))
{
return(false);
}
}
return(true);
}
