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complex_1.c

@@ -0,0 +1,41 @@
+#include<stdio.h>
+#include<time.h>
+void applyGaussianBlur(float src[5][5], float dst[5][5], int h, int w, float kernel[3][3])
+{
+	for (int i = 1; i < h - 1; i++)
+	{
+		for (int j = 1; j < w - 1; j++)
+		{
+			float sum = 0.0;
+			for (int ki = -1; ki <= 1; ki++)
+			{
+				for (int kj = -1; kj <= 1; kj++)
+				{
+					sum += src[i + ki][j + kj] * kernel[ki + 1][kj + 1];
+				}
+			}
+			dst[i][j] = sum;
+		}
+	}
+}
+int main()
+{
+	float src[5][5] = {{1,2,3,4,5},{6,7,8,9,10},{11,12,13,14,15},{16,17,18,19,20},{21,22,23,24,25}};
+	float dst[5][5] = { 0 };
+	float kernel[3][3] ={{1/16.0,2/16.0,1/16.0},{2/16.0,4/16.0,2/16.0},{1/16.0,2/16.0,1/16.0}};
+	clock_t start = clock();
+	applyGaussianBlur(src, dst, 5, 5, kernel);
+	clock_t end = clock();
+	printf("模糊后的图像矩阵:\n");
+	for (int i = 0; i <= 5; i++)
+	{
+		for (int j = 0; j < 5; j++)
+		{
+			printf("%.2f", dst[i][j]);
+		}
+		printf("\n");
+	}
+	double time_taken = ((double)(end - start)) / CLOCKS_PER_SEC;
+	printf("运行时间:%f 秒\n", time_taken);
+	return 0;
+}