所以我在pset4过滤器中有这个问题，不太舒服。我的模糊不起作用。我的问题是，它似乎并没有因高度而循环，因此在我的代码中唯一起作用的是第一行。
我的代码在第一行工作正常，但第二行没有变化，依此类推。就像我的代码中有一个breaks函数，这样它将在第一行之后停止。我以为这是我在if（）中的条件，也许我对条件感到困惑，但是它没有解释为什么它不适用于盒子的左下角和右下角，条件是如此简单，所以没有混乱。我的意思是让我们假设我在像素的边缘和中间部分的情况是错误的，但它仍应计算该框最后一行的角。即使我的条件或公式有问题，它也应该更改RGB像素的值，但不会。
：（（模糊可以正确过滤3x3图像
使用3x3样本图像进行测试
first row: (10, 20, 30), (40, 50, 60), (70, 80, 90)
second row: (110, 130, 140), (120, 140, 150), (130, 150, 160)
third row: (200, 210, 220), (220, 230, 240), (240, 250, 255)
预期输出：
70 85 95
80 95 105
90 105 115
117 130 140
127 140 149
137 150 159
163 178 188
170 185 194
178 193 201
实际输出：
70 85 95
80 95 105
90 105 115
110 130 140
120 140 150
130 150 160
200 210 220
220 230 240
240 250 255
这是代码
void blur(int height, int width, RGBTRIPLE image[height][width])
{
// Copying the height and width length
int heilen = height;
int widlen = width;
int avgRed;
int avgGreen;
int avgBlue;
// Creating temporary array
int tmpR[height][width];
int tmpG[height][width];
int tmpB[height][width];
//storing the values of the image[i][j] to my temporary array
for (int i = 0; i < heilen; i++)
{
for (int j = 0; j < widlen; j++)
{
// storing the current images arrays to tmpRGB
tmpR[i][j] = image[i][j].rgbtRed;
tmpG[i][j] = image[i][j].rgbtGreen;
tmpB[i][j] = image[i][j].rgbtBlue;
}
}
for (height = 0; height < heilen; height++)
{
for (width = 0; width < widlen; width++)
{
//=================== PIXELS IN CORNERS
//upper left corner side of the box
if (height == 0 && width == 0)
{
//calculating the total values of the curreent row and pixel and current row and pixel + 1
float current_row_Red = tmpR[height][width] + tmpR[height][width + 1];
//calculating the total values of the next row current pixel and pixel + 1
float after_row_Red = tmpR[height + 1][width] + tmpR[height + 1][width + 1];
//getting the average of the total current row and next row and dividing it to 4
avgRed = round ((current_row_Red + after_row_Red) / 4);
float current_row_Green = tmpG[height][width] + tmpG[height][width + 1];
float after_row_Green = tmpG[height + 1][width] + tmpG[height + 1][width + 1];
avgGreen = round ((current_row_Green + after_row_Green) / 4);
float current_row_Blue = tmpB[height][width] + tmpB[height][width + 1];
float after_row_Blue = tmpB[height + 1][width] + tmpB[height + 1][width + 1];
avgBlue = round ((current_row_Blue + after_row_Blue) / 4);
}
// upper right corner side of Box
else if (height == 0 && width == widlen - 1)
{
float current_row_Red = tmpR[height][width] + tmpR[height][width - 1];
float after_row_Red = tmpR[height + 1][width] + tmpR[height + 1][width - 1];
avgRed = round ((current_row_Red + after_row_Red) / 4);
float current_row_Green = tmpG[height][width] + tmpG[height][width - 1];
float after_row_Green = tmpG[height + 1][width] + tmpG[height + 1][width - 1];
avgGreen = round ((current_row_Green + after_row_Green) / 4);
float current_row_Blue = tmpB[height][width] + tmpB[height][width - 1];
float after_row_Blue = tmpB[height + 1][width] + tmpB[height + 1][width - 1];
avgBlue = round ((current_row_Blue + after_row_Blue) / 4);
}
//lower left corner side of the box
else if (height == heilen - 1 && width == 0)
{
float current_row_Red = tmpR[height][width] + tmpR[height][width + 1];
float before_row_Red = tmpR[height - 1][width] + tmpR[height - 1][width + 1];
avgRed = round ((current_row_Red + before_row_Red) / 4);
float current_row_Green = tmpG[height][width] + tmpG[height][width + 1];
float before_row_Green = tmpG[height - 1][width] + tmpG[height - 1][width + 1];
avgGreen = round ((current_row_Green + before_row_Green) / 4);
float current_row_Blue = tmpB[height][width] + tmpB[height][width + 1];
float before_row_Blue = tmpB[height - 1][width] + tmpB[height - 1][width + 1];
avgBlue = round ((current_row_Blue + before_row_Blue) / 4);
}
//lower right corner side of the box
else if (height == heilen - 1 && width == widlen - 1)
{
float current_row_Red = tmpR[height][width] + tmpR[height][width - 1];
float before_row_Red = tmpR[height - 1][width] + tmpR[height - 1][width - 1];
avgRed = round ((current_row_Red + before_row_Red) / 4);
float current_row_Green = tmpG[height][width] + tmpG[height][width - 1];
float before_row_Green = tmpG[height - 1][width] + tmpG[height - 1][width - 1];
avgGreen = round ((current_row_Green + before_row_Green) / 4);
float current_row_Blue = tmpB[height][width] + tmpB[height][width - 1];
float before_row_Blue = tmpB[height - 1][width] + tmpB[height - 1][width - 1];
avgBlue = round ((current_row_Blue + before_row_Blue) / 4);
}
// ===================== PIXELS ON EDGES
//upper side of the box
else if ( (height == 0 && width >= 1) && (height == 0 &&width < widlen - 1) )
{
float current_row_Red = tmpR[height][width] + tmpR[height][width - 1] + tmpR[height][width + 1];
float after_row_Red = tmpR[height + 1][width] + tmpR[height + 1][width - 1] + tmpR[height + 1][width + 1];
avgRed = round ((current_row_Red + after_row_Red) / 6);
float current_row_Green = tmpG[height][width] + tmpG[height][width - 1] + tmpG[height][width + 1];
float after_row_Green = tmpG[height + 1][width] + tmpG[height + 1][width - 1] + tmpG[height + 1][width + 1];
avgGreen = round ((current_row_Green + after_row_Green) / 6);
float current_row_Blue = tmpB[height][width] + tmpB[height][width - 1] + tmpB[height][width + 1];
float after_row_Blue = tmpB[height + 1][width] + tmpB[height + 1][width - 1] + tmpB[height + 1][width + 1];
avgBlue = round ((current_row_Blue + after_row_Blue) / 6);
}
//lower side of the box
else if ( ( height == heilen - 1 && width >= 1) && ( height == heilen - 1 && width < widlen - 1) )
{
float current_row_Red = tmpR[height][width] + tmpR[height][width - 1] + tmpR[height][width + 1];
float before_row_Red = tmpR[height - 1][width] + tmpR[height - 1][width - 1] + tmpR[height - 1][width + 1];
avgRed = round ((current_row_Red + before_row_Red) / 6);
float current_row_Green = tmpG[height][width] + tmpG[height][width - 1] + tmpG[height][width + 1];
float before_row_Green = tmpG[height - 1][width] + tmpG[height - 1][width - 1] + tmpG[height - 1][width + 1];
avgGreen = round ((current_row_Green + before_row_Green) / 6);
float current_row_Blue = tmpB[height][width] + tmpB[height][width - 1] + tmpB[height][width + 1];
float before_row_Blue = tmpB[height - 1][width] + tmpB[height - 1][width - 1] + tmpB[height - 1][width + 1];
avgBlue = round ((current_row_Blue + before_row_Blue) / 6);
}
// left side of the box
else if ( (height >= 1 && width == 0) && (height < heilen - 1 && width == 0) )
{
float current_row_Red = tmpR[height][width] + tmpR[height][width + 1];
float before_row_Red = tmpR[height - 1][width] + tmpR[height - 1][width + 1];
float after_row_Red = tmpR[height + 1][width] + tmpR[height + 1][width + 1];
avgRed = round ((current_row_Red + before_row_Red + after_row_Red) / 6);
float current_row_Green = tmpG[height][width] + tmpG[height][width + 1];
float before_row_Green = tmpG[height - 1][width] + tmpG[height - 1][width + 1];
float after_row_Green = tmpG[height + 1][width] + tmpG[height + 1][width + 1];
avgGreen = round ((current_row_Green + before_row_Green + after_row_Green) / 6);
float current_row_Blue = tmpB[height][width] + tmpB[height][width + 1];
float before_row_Blue = tmpB[height - 1][width] + tmpB[height - 1][width + 1];
float after_row_Blue = tmpB[height + 1][width] + tmpB[height + 1][width + 1];
avgBlue = round ((current_row_Blue + before_row_Blue + after_row_Blue) / 6);
}
//right side of the box
else if ( ( height >= 1 && width == widlen- 1) && (height <= heilen -1 && width == widlen - 1) )
{
float current_row_Red = tmpR[height][width] + tmpR[height][width - 1];
float before_row_Red = tmpR[height - 1][width] + tmpR[height - 1][width - 1];
float after_row_Red = tmpR[height + 1][width] + tmpR[height + 1][width - 1];
avgRed = round ((current_row_Red + before_row_Red + after_row_Red) / 6);
float current_row_Green = tmpG[height][width] + tmpG[height][width - 1];
float before_row_Green = tmpG[height - 1][width] + tmpG[height - 1][width - 1];
float after_row_Green = tmpG[height + 1][width] + tmpG[height + 1][width - 1];
avgGreen = round ((current_row_Green + before_row_Green + after_row_Green) / 6);
float current_row_Blue = tmpB[height][width] + tmpB[height][width - 1];
float before_row_Blue = tmpB[height - 1][width] + tmpB[height - 1][width - 1];
float after_row_Blue = tmpB[height + 1][width] + tmpB[height + 1][width - 1];
avgBlue = round ((current_row_Blue + before_row_Blue + after_row_Blue) / 6);
}
//====================MIDDLE PIXELS
//middle of the box
else if ( (height >= 1 && width >= 1) && (height < heilen - 1 && width < widlen - 1) )
{
float current_row_Red = tmpR[height][width] + tmpR[height][width - 1] + tmpR[height][width + 1];
float after_row_Red = tmpR[height + 1][width] + tmpR[height + 1][width - 1] + tmpR[height + 1][width + 1];
float before_row_Red = tmpR[height - 1][width] + tmpR[height - 1][width - 1] + tmpR[height - 1][width + 1];
avgRed = round ((current_row_Red + before_row_Red + after_row_Red) / 9);
float current_row_Green = tmpG[height][width] + tmpG[height][width - 1] + tmpG[height][width + 1];
float before_row_Green = tmpG[height - 1][width] + tmpG[height - 1][width - 1] + tmpG[height - 1][width + 1];
float after_row_Green = tmpG[height + 1][width] + tmpG[height + 1][width - 1] + tmpG[height + 1][width + 1];
avgGreen = round ((current_row_Green + before_row_Green + after_row_Green) / 9);
float current_row_Blue = tmpB[height][width] + tmpB[height][width - 1] + tmpB[height][width + 1];
float before_row_Blue = tmpB[height - 1][width] + tmpB[height - 1][width - 1] + tmpB[height - 1][width + 1];
float after_row_Blue = tmpB[height + 1][width] + tmpB[height + 1][width - 1] + tmpB[height + 1][width + 1];
avgBlue = round ((current_row_Blue + before_row_Blue + after_row_Blue) / 9);
}
//Assigning the cuurent average of RGB to image[][]
image[height][width].rgbtRed = avgRed;
image[height][width].rgbtGreen = avgGreen;
image[height][width].rgbtBlue = avgBlue;
}
return;
}
}
您会注意到，从第二行开始，实际输出值与给定值相同。
我仍然知道它不是最有效的方法，但我还是帮不上忙，刚开始编码超过1个月。请帮助我> _ << / p>