public unsafe SpanPlanesXYZ(int width, int height)
{
var dataX = System.Runtime.InteropServices.MemoryMarshal.Cast <TComponent, byte>(new TComponent[width * height]);
var dataY = System.Runtime.InteropServices.MemoryMarshal.Cast <TComponent, byte>(new TComponent[width * height]);
var dataZ = System.Runtime.InteropServices.MemoryMarshal.Cast <TComponent, byte>(new TComponent[width * height]);
X = new SpanBitmap <TComponent>(dataX, width, height);
Y = new SpanBitmap <TComponent>(dataY, width, height);
Z = new SpanBitmap <TComponent>(dataZ, width, height);
}
public SpanPlanesXYZ(SpanBitmap <TComponent> x, SpanBitmap <TComponent> y, SpanBitmap <TComponent> z)
{
if (x.Width != y.Width || x.Height != y.Height)
{
throw new ArgumentException(_Error_AllChannelsEqualSize, nameof(y));
}
if (x.Width != z.Width || x.Height != z.Height)
{
throw new ArgumentException(_Error_AllChannelsEqualSize, nameof(z));
}
X = x;
Y = y;
Z = z;
}
public static void AttachToCurrentTestAll(this SpanBitmap bmp, string filePath)
{
var mem = bmp.ToMemoryBitmap();
TestContext.WriteLine($"{filePath} {bmp.Info.ToDebuggerDisplayString()}");
if (bmp.PixelFormat == Pixel.BGR96F.Format || bmp.PixelFormat == Pixel.RGB96F.Format)
{
var tmp = new MemoryBitmap(bmp.Width, bmp.Height, Pixel.BGR24.Format);
SpanBitmap.CopyPixels(bmp.OfType <System.Numerics.Vector3>(), tmp, (0, 1), (0, 255));
bmp = tmp;
}
AttachmentInfo _injectExt(string fp, string extPrefix)
{
var ext = System.IO.Path.GetExtension(fp);
fp = fp.Substring(0, fp.Length - ext.Length);
return(new AttachmentInfo($"{fp}.{extPrefix}{ext}"));
}
var f1 = _injectExt(filePath, "WPF");
mem.Save(f1, WPFCodec.Default);
var f2 = _injectExt(filePath, "GDI");
mem.Save(f2, GDICodec.Default);
var f3 = _injectExt(filePath, "ImageSharp");
mem.Save(f3, ImageSharpCodec.Default);
var f4 = _injectExt(filePath, "SkiaSharp");
mem.Save(f4, SkiaCodec.Default);
var f5 = _injectExt(filePath, "OpenCvSharp");
mem.Save(f5, OpenCvCodec.Default);
var f6 = _injectExt(filePath, "STB");
mem.Save(f6, STBCodec.WithQuality(80));
// TODO: it should compare saved files against bmp
}
public static void CopyPixels(SpanBitmap dst, SpanBitmap src) // Copy
{
Guard.AreEqual(nameof(src), dst.Width, src.Width);
Guard.AreEqual(nameof(src), dst.Height, src.Height);
src = src.AsReadOnly();
var rowConverter = Pixel.GetByteCopyConverter(src.PixelFormat, dst.PixelFormat);
for (int y = 0; y < dst.Height; ++y)
{
var dstRow = dst.UseScanlineBytes(y);
var srcRow = src.UseScanlineBytes(y);
rowConverter(srcRow, dstRow);
}
}
public static (Vector4 Min, Vector4 Max) MinMax(SpanBitmap <Vector4> src)
{
var min = new Vector4(float.PositiveInfinity);
var max = new Vector4(float.NegativeInfinity);
for (int y = 0; y < src.Height; ++y)
{
var srcRow = src.GetScanlinePixels(y);
for (int x = 0; x < srcRow.Length; ++x)
{
var p = srcRow[x];
min = Vector4.Min(min, p);
max = Vector4.Max(max, p);
}
}
return(min, max);
}
public void CopyGreyPixels()
{
var src = new MemoryBitmap <float>(177, 177).Slice((10, 10, 150, 150));
var dst = new MemoryBitmap <Byte>(177, 177).Slice((10, 10, 150, 150));
src.SetPixels(1);
var(min, max) = SpanBitmap.MinMax(src);
Assert.AreEqual(min, 1);
Assert.AreEqual(max, 1);
SpanBitmap.CopyPixels(src, dst, (0, 128), (0, 255));
Assert.IsTrue(dst.EnumeratePixels().All(p => p.Pixel == 128));
SpanBitmap.CopyPixels(src, dst, (0, 1), (10, 255));
Assert.IsTrue(dst.EnumeratePixels().All(p => p.Pixel == 10));
SpanBitmap.CopyPixels(src, dst, (0, 1), (2, 3));
Assert.IsTrue(dst.EnumeratePixels().All(p => p.Pixel == 2));
}
public void CopyRGBPixels()
{
var src = new MemoryBitmap <Vector3>(177, 177).Slice((10, 10, 150, 150));
var dst = new MemoryBitmap <PixelBGR>(177, 177).Slice((10, 10, 150, 150));
src.SetPixels(Vector3.One);
Assert.IsTrue(SpanBitmap.ArePixelsEqual(src, src));
SpanBitmap.CopyPixels(src, dst, (0, 128), (0, 255));
Assert.IsTrue(dst.EnumeratePixels().All(p => p.Pixel.Equals(new PixelBGR(128))));
SpanBitmap.CopyPixels(src, dst, (0, 1), (10, 255));
Assert.IsTrue(dst.EnumeratePixels().All(p => p.Pixel.Equals(new PixelBGR(10))));
SpanBitmap.CopyPixels(src, dst, (0, 1), (2, 3));
Assert.IsTrue(dst.EnumeratePixels().All(p => p.Pixel.Equals(new PixelBGR(2))));
Assert.IsTrue(SpanBitmap.ArePixelsEqual(dst, dst));
}
public static (Single Min, Single Max) MinMax(SpanBitmap <float> src)
{
var min = float.PositiveInfinity;
var max = float.NegativeInfinity;
for (int y = 0; y < src.Height; ++y)
{
var srcRow = src.GetScanlinePixels(y);
var(rMin, rMax) = Vector4Streaming.MinMax(srcRow);
if (min > rMin)
{
min = rMin;
}
if (max < rMax)
{
max = rMax;
}
}
return(min, max);
}
public static void CopyPixels(SpanBitmap <Byte> src, SpanBitmap <Single> dst, (Single offset, Single scale) transform, (Single min, Single max) range)
public static void PinTransferPointers(SpanBitmap src, SpanBitmap dst, PointerBitmap.Action2 onPinned)
{
_SpanBitmapImpl.PinTransferPointers(src, dst, onPinned);
}
public static void SetPixels <TSrcPixel, TDstPixel>(this SpanBitmap <TDstPixel> target, SpanBitmap <TSrcPixel> source, Processing.Kernel3x3 <TDstPixel> .KernelEvaluator <TDstPixel> function)
where TSrcPixel : unmanaged
where TDstPixel : unmanaged
{
Processing.Kernel3x3 <TDstPixel> .Copy(source, target, function);
}
public static void Apply <TPixel, TKernelPixel>(this SpanBitmap <TPixel> target, Processing.Kernel3x3 <TKernelPixel> .KernelEvaluator <TPixel> function)
where TPixel : unmanaged
where TKernelPixel : unmanaged
{
Processing.Kernel3x3 <TKernelPixel> .Apply(target, function);
}
public SpanBitmap(SpanBitmap other, bool isReadOnly = false)
{
_Info = other.Info;
_Readable = other._Readable;
_Writable = isReadOnly ? null : other._Writable;
}
