rgb转hsv代码C语音，不支持浮点运算

RGB到HSV（色调、饱和度、亮度）颜色空间转换在C语言中通常需要整数运算，因为标准库可能不直接支持浮点运算。以下是一个简单的整数RGB转HSV的C代码示例：

#include <stdio.h>

// 定义RGB和HSV范围（0-255）
#define RGB_MAX 255
#define HSV_MAX 255

// RGB to HSV conversion function
void rgb_to_hsv(int r, int g, int b, int* h, int* s, int* v) {
    int max, min;
    int delta;

    // Find the maximum and minimum values among R, G, B
    if (r > g && r > b)
        max = r;
    else if (g > b)
        max = g;
    else
        max = b;

    min = r < g ? r : g;
    min = min < b ? min : b;

    *v = max; // V (Value): The brightest component of the color

    if (max == min) { // If all values are equal, hue is undefined (gray)
        *h = -1;
        *s = 0;
    } else {
        delta = max - min;
        if (max == r)
            *h = (g - b) * (RGB_MAX / delta);
        else if (max == g)
            *h = 2 + (b - r) * (RGB_MAX / delta);
        else
            *h = 4 + (r - g) * (RGB_MAX / delta);

        *h *= RGB_MAX / 6; // Normalize hue value between 0 and 255
        *h %= HSV_MAX; // Ensure hue stays within [0, 255]
        *s = *v * (delta != 0 ? (RGB_MAX / delta) : 0); // S (Saturation)
    }
}

int main() {
    int r, g, b, h, s, v;
    printf("Enter RGB values (0-255): ");
    scanf("%d %d %d", &r, &g, &b);

    rgb_to_hsv(r, g, b, &h, &s, &v);
    printf("HSV: Hue = %d, Saturation = %d, Value = %d\n", h, s, v);

    return 0;
}