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我有以下标准 .net 库方法可以完美地运行，以便将图像的颜色更改为任何其他颜色的单色：

using System;
using System.Drawing;
using System.Drawing.Imaging;
using MathNet.Numerics.LinearAlgebra;

// ...

    // matrix to convert image to grayscale
    private static readonly Matrix<float> Grayscale = Matrix<float>.Build.SparseOfArray(new[,]
    {
        {.3f, .3f, .3f, 0, 0},
        {.59f, .59f, .59f, 0, 0},
        {.11f, .11f, .11f, 0, 0},
        {0, 0, 0, 1, 0},
        {0, 0, 0, 0, 1}
    });

    // matrix to invert image colour
    private static readonly Matrix<float> Invert = Matrix<float>.Build.SparseOfArray(new[,]
    {
        {-1f, 0, 0, 0, 0},
        {0, -1f, 0, 0, 0},
        {0, 0, -1f, 0, 0},
        {0, 0, 0, 1f, 0},
        {1f, 1f, 1f, 0, 1f}
    });

    private static Bitmap ChangeColor(this Image original, Color newColour)
    {
        const float max = byte.MaxValue;

        Matrix<float> newColourMatrix = Matrix<float>.Build.Diagonal(
            new[]
            {
                newColour.R / max,
                newColour.G / max,
                newColour.B / max,
                newColour.A / max,
                1f
            });
        // convert to grayscale, invert B&W and then apply new colour
        Matrix<float> transformMatrix = Grayscale.Multiply(Invert).Multiply(newColourMatrix);
        ColorMatrix colorMatrix = new(transformMatrix.ToRowArrays());
        ImageAttributes attributes = new();
        attributes.SetColorMatrix(colorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);

        Bitmap newBitmap = new(original.Width, original.Height);

        using Graphics graphics = Graphics.FromImage(newBitmap);
        graphics.DrawImage(original,
            new Rectangle(0, 0, original.Width, original.Height),
            0,
            0,
            original.Width,
            original.Height,
            GraphicsUnit.Pixel,
            attributes);

        return newBitmap;
    }

我一直在玩 Magick.NET，看看是否可以使用该库实现相同的转换（希望代码少得多），但到目前为止还没有成功。

我目前正在做的改造是：

灰度 >>> 图像负片（暗 -> 亮，反之亦然） >>> 应用新颜色

任何人都可以帮忙吗？

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