双边滤波函数matlab
时间: 2023-10-11 18:13:20 浏览: 44
在C#中,可以使用以下代码实现双边滤波函数:
```csharp
using System;
using System.Drawing;
public static class BilateralFilter
{
public static Bitmap ApplyBilateralFilter(Bitmap image, int diameter, double sigmaColor, double sigmaSpace)
{
Bitmap filteredImage = new Bitmap(image.Width, image.Height);
int radius = diameter / 2;
double colorCoefficient = -0.5 / (sigmaColor * sigmaColor);
double spaceCoefficient = -0.5 / (sigmaSpace * sigmaSpace);
for (int y = 0; y < image.Height; y++)
{
for (int x = 0; x < image.Width; x++)
{
double redSum = 0, greenSum = 0, blueSum = 0;
double weightSum = 0;
for (int j = -radius; j <= radius; j++)
{
int newY = y + j;
if (newY >= 0 && newY < image.Height)
{
for (int i = -radius; i <= radius; i++)
{
int newX = x + i;
if (newX >= 0 && newX < image.Width)
{
Color currentPixel = image.GetPixel(newX, newY);
double colorDistance = GetColorDistance(currentPixel, image.GetPixel(x, y));
double spaceDistance = GetSpaceDistance(newX, newY, x, y);
double weight = Math.Exp(colorCoefficient * colorDistance + spaceCoefficient * spaceDistance);
redSum += currentPixel.R * weight;
greenSum += currentPixel.G * weight;
blueSum += currentPixel.B * weight;
weightSum += weight;
}
}