c语言美颜程序的源代码
时间: 2023-06-10 20:08:30 浏览: 83
c语言程序源代码
以下是使用C语言编写的简单美颜程序的源代码:
```c
#include <stdio.h>
#include <stdlib.h>
#define BMP_HEADER_SIZE 54
int main() {
char input_file[100], output_file[100];
printf("请输入输入文件名:");
scanf("%s", input_file);
printf("请输入输出文件名:");
scanf("%s", output_file);
FILE *input = fopen(input_file, "rb");
if (input == NULL) {
printf("无法打开输入文件,请检查文件名是否正确!");
return 1;
}
FILE *output = fopen(output_file, "wb");
if (output == NULL) {
printf("无法创建输出文件,请检查文件名是否正确!");
return 1;
}
unsigned char header[BMP_HEADER_SIZE];
fread(header, sizeof(unsigned char), BMP_HEADER_SIZE, input);
fwrite(header, sizeof(unsigned char), BMP_HEADER_SIZE, output);
int width = *(int*)&header[18];
int height = *(int*)&header[22];
int padding = 0;
while ((width * 3 + padding) % 4 != 0) {
padding++;
}
unsigned char pixel[3];
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
fread(pixel, sizeof(unsigned char), 3, input);
unsigned char blue = pixel[0];
unsigned char green = pixel[1];
unsigned char red = pixel[2];
unsigned char gray = (red + green + blue) / 3;
pixel[0] = gray;
pixel[1] = gray;
pixel[2] = gray;
fwrite(pixel, sizeof(unsigned char), 3, output);
}
fseek(input, padding, SEEK_CUR);
for (int i = 0; i < padding; i++) {
fputc(0, output);
}
}
fclose(input);
fclose(output);
printf("美颜完成!\n");
return 0;
}
```
该程序将一个位图文件中的彩色像素转换为灰度像素,从而实现了简单的美颜功能。注意,该程序并没有进行图像处理,仅仅是将彩色像素转换为灰度像素。如果需要更高级的美颜功能,需要使用更复杂的算法和技术。
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