diff options
Diffstat (limited to 'UVtools.Core/Extensions/EmguExtensions.cs')
-rw-r--r-- | UVtools.Core/Extensions/EmguExtensions.cs | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/UVtools.Core/Extensions/EmguExtensions.cs b/UVtools.Core/Extensions/EmguExtensions.cs index 64b2dc5..b5ed369 100644 --- a/UVtools.Core/Extensions/EmguExtensions.cs +++ b/UVtools.Core/Extensions/EmguExtensions.cs @@ -63,10 +63,27 @@ namespace UVtools.Core.Extensions public static unsafe Span<T> GetPixelRowSpan<T>(this Mat mat, int y, int length = 0, int offset = 0) { - return new Span<T>(IntPtr.Add(mat.DataPointer, y * mat.Step + offset).ToPointer(), length == 0 ? mat.Step : length); + return new(IntPtr.Add(mat.DataPointer, y * mat.Step + offset).ToPointer(), length == 0 ? mat.Step : length); //return mat.GetPixelSpan<T>().Slice(offset, mat.Step); } + /// <summary> + /// Gets if a <see cref="Mat"/> is all zeroed + /// </summary> + /// <param name="mat"></param> + /// <param name="threshold">Pixel brightness threshold</param> + /// <returns></returns> + public static unsafe bool IsZeroed(this Mat mat, byte threshold = 0) + { + var ptr = mat.GetBytePointer(); + for (int i = 0; i < mat.GetLength(); i++) + { + if (ptr[i] > threshold) return false; + } + return true; + } + + public static void Transform(this Mat src, double xScale, double yScale, double xTrans = 0, double yTrans = 0, Size dstSize = default, Inter interpolation = Inter.Linear) { //var dst = new Mat(src.Size, src.Depth, src.NumberOfChannels); |