Vb.net 在为mandelbrot集着色时，如何结合平滑和直方图着色

我已经实现了一个小小的Mandelbrot程序，并分别添加了直方图着色和平滑着色，如维基百科上所述：（）

在这一页上，它说“这种方法[直方图着色方法]可以与下面的平滑着色方法相结合，以获得更美观的图像。”

然而，我不明白应该如何做到这一点

这是我的渲染功能：

Private Function RenderFractalWithHistogram(fractal As Fractal, width As Integer, height As Integer) As Bitmap
        Dim escapeValues(width - 1, height - 1) As Fractal.EscapeValue
        Dim histogram(fractal.MaxIterations) As Integer
        Dim numPixels As Integer = width * height

        Parallel.For(0, height, Sub(y)
                                    Dim escapeValue As Fractal.EscapeValue
                                    For x As Integer = 0 To width - 1
                                        escapeValue = fractal.GetEscapeValueAt(x, y, width, height)
                                        escapeValues(x, y) = escapeValue
                                        SyncLock (Me)
                                            histogram(escapeValue.Iterations) += 1
                                        End SyncLock
                                    Next
                                End Sub)

        Dim histogramCumulated(fractal.MaxIterations) As Integer
        Dim sum As Integer = 0
        For i As Integer = 0 To fractal.MaxIterations
            sum += histogram(i)
            histogramCumulated(i) = sum
        Next

        Dim bitmapBytes(numPixels * 4 - 1) As Byte
        Parallel.For(0, height, Sub(y)
                                    Dim escapeValue As Fractal.EscapeValue
                                    Dim colorIndex As Double
                                    Dim color As Color
                                    Dim index As Integer
                                    Dim colorBytes() As Byte
                                    For x As Integer = 0 To width - 1
                                        escapeValue = escapeValues(x, y)
                                        colorIndex = histogramCumulated(escapeValue.Iterations) / numPixels
                                        color = fractal.ColorScheme.GetColor(colorIndex)
                                        index = y * width * 4 + x * 4
                                        colorBytes = BitConverter.GetBytes(color.ToArgb)
                                        For Each colorByte As Byte In colorBytes
                                            bitmapBytes(index) = colorByte
                                            index += 1
                                        Next
                                    Next
                                End Sub)

        Return CreateBitmapFromColorByteArray(bitmapBytes, width, height)
    End Function

---

它工作得很好，但图片有色带。我只是不确定，如何在这里应用平滑，因为它是用平滑着色方法完成的。也许我错过了一些很简单的事情？如果有人能帮我解决这个问题，那就太好了。

我的待办事项清单上有一个平滑的颜色，等待执行：。