能不能写一份c语言代码，利用曼哈顿距离检测，检测二值化图像中的矩形

当然可以，以下是一个简单的C语言代码示例：

#include <stdio.h>

int main() {
    int rows, cols, i, j, top, left, bottom, right, count;
    scanf("%d %d", &rows, &cols);
    int image[rows][cols];
    for (i = 0; i < rows; i++) {
        for (j = 0; j < cols; j++) {
            scanf("%d", &image[i][j]);
        }
    }
    count = 0;
    for (top = 0; top < rows; top++) {
        for (left = 0; left < cols; left++) {
            for (bottom = top; bottom < rows; bottom++) {
                for (right = left; right < cols; right++) {
                    int sum = 0;
                    for (i = top; i <= bottom; i++) {
                        for (j = left; j <= right; j++) {
                            if (image[i][j] == 1) {
                                sum += abs(i-top) + abs(j-left);
                            }
                        }
                    }
                    if (sum == 0) {
                        continue;
                    }
                    int width = right - left + 1;
                    int height = bottom - top + 1;
                    if (sum == 2*(width + height - 2)) {
                        printf("rectangle found at (%d, %d) to (%d, %d)\n", top, left, bottom, right);
                        count++;
                    }
                }
            }
        }
    }
    if (count == 0) {
        printf("no rectangles found\n");
    }
    return 0;
}

这个代码可以从标准输入中读取一个二值化图像的大小和像素值，然后利用曼哈顿距离检测矩形并输出矩形的左上角和右下角坐标。如果没有矩形存在则输出"no rectangles found"。