知道为什么此功能会导致分段故障核心倾倒吗？新的CS50周4。

Question

我了解这可能不是我新手的最有效的代码。我真的不知道为什么这会导致细分错误，如果有人可以向我解释我出错的地方，这将非常感谢。该函数应该通过将每个像素的颜色值更改为自身和8个周围像素的平均值来模糊.bmp图像。我尚未在将模糊的值传递给输出图像中的文章。谢谢。

// Blur image
void blur(int height, int width, RGBTRIPLE image[height][width])
{
    float temp_red = 0, temp_green = 0, temp_blue = 0;
    RGBTRIPLE copy[height][width];

    for (int i = 0; i < height; i++)
    {
        for (int j = 0; j < width ; j++)
        {
            int counter = 0;
            if (i >= 1 && j >= 1)
            {
                temp_red = temp_red + image[i-1][j-1].rgbtRed;
                temp_green = temp_green + image[i-1][j-1].rgbtGreen;
                temp_blue = temp_blue + image[i-1][j-1].rgbtBlue;
                counter++;
            }

            if (i >= 1 && j + 1 <= width - 1)
            {
                temp_red = temp_red + image[i - 1][j + 1].rgbtRed;
                temp_green = temp_green + image[i - 1][j + 1].rgbtGreen;
                temp_blue = temp_blue + image[i - 1][j + 1].rgbtBlue;
                counter++;
            }

            if (i >= 1)
            {
                temp_red = temp_red + image[i-1][j].rgbtRed;
                temp_green = temp_green + image[i-1][j].rgbtGreen;
                temp_blue = temp_blue + image[i-1][j].rgbtBlue;
                counter++;
            }

            if (j >= 1)
            {
                temp_red = temp_red + image[i][j-1].rgbtRed;
                temp_green = temp_green + image[i][j-1].rgbtGreen;
                temp_blue = temp_blue + image[i][j-1].rgbtBlue;
                counter++;
            }

            if (j + 1 <= width - 1)
            {
                temp_red = temp_red + image[i][j+1].rgbtRed;
                temp_green = temp_green + image[i][j+1].rgbtGreen;
                temp_blue = temp_blue + image[i][j+1].rgbtBlue;
                counter++;
            }

            if (i + 1 <= height - 1 && j >= 1)
            {
                temp_red = temp_red + image[i+1][j-1].rgbtRed;
                temp_green = temp_green + image[i+1][j-1].rgbtGreen;
                temp_blue = temp_blue + image[i+1][j-1].rgbtBlue;
                counter++;
            }

            if (i + 1 <= height - 1)
            {
                temp_red = temp_red + image[i-1][j].rgbtRed;
                temp_green = temp_green + image[i-1][j].rgbtGreen;
                temp_blue = temp_blue + image[i-1][j].rgbtBlue;
                counter++;
            }

            if (i + 1 <= height - 1 && j + 1 <= width - 1)
            {
                temp_red = temp_red + image[i+1][j+1].rgbtRed;
                temp_green = temp_green + image[i+1][j+1].rgbtGreen;
                temp_blue = temp_blue + image[i+1][j+1].rgbtBlue;
                counter++;
            }

            temp_red = temp_red + image[i][j].rgbtRed;
            temp_green = temp_green + image[i][j].rgbtGreen;
            temp_blue = temp_blue + image[i][j].rgbtBlue;
            counter++;

            temp_red = round(temp_red / counter);
            temp_green = round(temp_green / counter);
            temp_blue = round(temp_blue / counter);
            counter = 0;
            copy[i][j].rgbtRed = temp_red;
            copy[i][j].rgbtGreen = temp_green;
            copy[i][j].rgbtBlue = temp_blue;
        }
    }

    return;
}

Answer 1

 if (i-1 <=0 && j+1 <= width - 1)

我怀疑i -1的条件是错误的，gurahtees the concess index -1

认为您的意思是

if (i-1 >=0 && j+1 <= width - 1)

---

其他索引也是错误的

        if (i + 1 <= height - 1 && j + 1 <= width - 1)
        {
            temp_red = temp_red + image[i+1][j+1].rgbtRed;

我

        if (i + 1 < height - 1 && j + 1 < width - 1)
        {
            temp_red = temp_red + image[i+1][j+1].rgbtRed;