尝试对CS50 pset4的bmp应用“模糊”滤镜，并且输出图像要暗得多

Question

这是我的代码生成的输出和输入图像：https://imgur.com/a/mT7YqCD

以下代码用于模糊功能，pset4中未涉及所有支持代码。

void blur(int height, int width, RGBTRIPLE image[height] [width])
{
RGBTRIPLE newImage[height][width];

for (int h = 0; h < height; h++)
{
    for (int w = 0; w < width; w++)
    {
        BYTE redAvg = 0;
        BYTE greenAvg = 0;
        BYTE blueAvg = 0;
        BYTE count = 0;

        for (int y = -1; y <= 1; y++)
        {
            for (int x = -1; x <= 1; x++)
            {
                int h_1 = h + y;
                int w_1 = w + x;

                if (h_1 >= 0 && h_1 < height && w_1 >= 0 && w_1 < width)
                {
                    count++;
                    redAvg += image[h_1][w_1].rgbtRed;
                    greenAvg += image[h_1][w_1].rgbtGreen;
                    blueAvg += image[h_1][w_1].rgbtBlue;
                }
            }
        }
        newImage[h][w].rgbtRed = redAvg/count;
        newImage[h][w].rgbtGreen = greenAvg/count;
        newImage[h][w].rgbtBlue = blueAvg/count;
    }
}
for (int x = 0; x < height; x++)
{
    for (int y = 0; y <width; y++)
    {
        image[x][y] = newImage[x][y];
    }
}
return;
}