不适用opencv用C语言读取100张bmp图片的代码

以下是使用 C 语言读取 100 张 bmp 图片的基本代码：

#include <stdio.h>
#include <stdlib.h>

int main() {
    for (int i = 1; i <= 100; i++) {
        char filename[20];
        sprintf(filename, "image_%d.bmp", i);

        FILE* file = fopen(filename, "rb");
        if (file == NULL) {
            printf("Error: Cannot open file %s\n", filename);
            continue;
        }

        // Read header (14 bytes)
        unsigned char header[14];
        fread(header, sizeof(unsigned char), 14, file);

        // Read DIB header (40 bytes)
        unsigned char dib_header[40];
        fread(dib_header, sizeof(unsigned char), 40, file);

        // Read pixel data
        int width = *(int*)&dib_header[4];
        int height = *(int*)&dib_header[8];
        int bit_count = *(short*)&dib_header[14];

        int row_size = ((width * bit_count + 31) / 32) * 4;
        int data_size = row_size * height;

        unsigned char* data = (unsigned char*)malloc(data_size);
        fread(data, sizeof(unsigned char), data_size, file);

        // Processing image data ...

        free(data);
        fclose(file);
    }

    return 0;
}

这段代码可以循环读取名为 `image_1.bmp` 到 `image_100.bmp` 的图片文件。每次读取过程需要读取 BMP 文件的头信息和像素数据，后续的处理部分可以根据需要进行修改。如果文件不存在或者读取错误，会跳过当前文件继续循环。