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Copy pathhistogram_equalization.h
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441 lines (416 loc) · 21 KB
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#pragma once
#include<iostream>
#include<cmath>
#include"read_write_bmp.h"
//直方图均衡化
bmp_file histogram_equalize(bmp_file origin_bmp)
{
int num_pixel = origin_bmp.bmp_info_header.biWidth * origin_bmp.bmp_info_header.biHeight;
int num_pixel_actual = origin_bmp.biWidth_actual * origin_bmp.bmp_info_header.biHeight;
bmp_file result_bmp;
switch (origin_bmp.bmp_info_header.biBitCount)
{
case 8: //* 8位（256色）bmp
{
//提取像素
uint8_t* pixel = new uint8_t[num_pixel_actual];
long temp_index = 0;
if (num_pixel_actual > 1) //以防pixel访问越界
for (long i = 0; i < origin_bmp.bmp_info_header.biHeight; i++)
{
for (long j = 0; j < origin_bmp.bmp_info_header.biWidth; j++)
pixel[i * origin_bmp.biWidth_actual + j] = origin_bmp.bmp_pixel8[i * origin_bmp.biWidth_actual + j];
//for (long j= origin_bmp.bmp_info_header.biWidth;j<origin_bmp.biWidth_actual;j++)
// pixel[i * origin_bmp.bmp_info_header.biWidth + j]
}
int* hist_counting = hist_0_255(pixel, origin_bmp.bmp_info_header.biWidth, origin_bmp.bmp_info_header.biHeight, origin_bmp.biWidth_actual);
uint8_t* transformation_result = new uint8_t[256];
int total_counting = 0;
//*L-1 = 256-1 = 255
for (int i = 0; i < 256; i++)
{
total_counting += hist_counting[i];
transformation_result[i] = uint8_t(round(255.0 * total_counting / num_pixel));
}
if (num_pixel_actual > 1) //以防pixel访问越界
for (long i = 0; i < origin_bmp.bmp_info_header.biHeight; i++)
for (long j = 0; j < origin_bmp.bmp_info_header.biWidth; j++)
{
temp_index = i * origin_bmp.bmp_info_header.biWidth + j;
uint8_t temp = transformation_result[pixel[temp_index]];
pixel[temp_index] = temp;
}
//结果bmp
result_bmp.bmp_file_header.bfType = origin_bmp.bmp_file_header.bfType;
result_bmp.bmp_file_header.bfReserved1 = origin_bmp.bmp_file_header.bfReserved1;
result_bmp.bmp_file_header.bfReserved2 = origin_bmp.bmp_file_header.bfReserved2;
result_bmp.bmp_file_header.bfSize = origin_bmp.bmp_file_header.bfSize;
result_bmp.bmp_file_header.bfOffBits = origin_bmp.bmp_file_header.bfOffBits;
result_bmp.bmp_info_header.biHeight = origin_bmp.bmp_info_header.biHeight;
result_bmp.bmp_info_header.biWidth = origin_bmp.bmp_info_header.biWidth;
result_bmp.bmp_info_header.biBitCount = origin_bmp.bmp_info_header.biBitCount;
result_bmp.bmp_info_header.biClrImportant = origin_bmp.bmp_info_header.biClrUsed;
result_bmp.bmp_info_header.biClrUsed = origin_bmp.bmp_info_header.biClrImportant;
result_bmp.bmp_info_header.biCompression = origin_bmp.bmp_info_header.biCompression;
result_bmp.bmp_info_header.biPlanes = origin_bmp.bmp_info_header.biPlanes;
result_bmp.bmp_info_header.biSize = origin_bmp.bmp_info_header.biSize;
result_bmp.bmp_info_header.biSizeImage = origin_bmp.bmp_info_header.biSizeImage;
result_bmp.bmp_info_header.biXPelsPerMeter = origin_bmp.bmp_info_header.biXPelsPerMeter;
result_bmp.bmp_info_header.biYPelsPerMeter = origin_bmp.bmp_info_header.biYPelsPerMeter;
result_bmp.bmp_pixel8 = pixel;
result_bmp.biWidth_actual = origin_bmp.biWidth_actual;
delete[] transformation_result;
}
break;
case 24: //* 24位（真彩色）bmp
{
//**转换到HSI域
origin_bmp.bmp_pixel24_H_double = new double[num_pixel];
origin_bmp.bmp_pixel24_S_double = new double[num_pixel];
origin_bmp.bmp_pixel24_I_double = new double[num_pixel];
memset(origin_bmp.bmp_pixel24_H_double, 0, sizeof(double) * num_pixel);
memset(origin_bmp.bmp_pixel24_S_double, 0, sizeof(double) * num_pixel);
memset(origin_bmp.bmp_pixel24_I_double, 0, sizeof(double) * num_pixel);
double temp_theta = 0.0;
double temp_R = 0.0, temp_G = 0.0, temp_B = 0.0;
double R_G_B_sum = 0.0;
double R_minus_G = 0.0, R_minus_B = 0.0, G_minus_B = 0.0;
int temp_row_index = 0, temp_index = 0;
if (num_pixel > 1) //以防访问越界
for (int i = 0; i < origin_bmp.bmp_info_header.biHeight; i++)
{
temp_row_index = i * origin_bmp.bmp_info_header.biWidth;
for (int j = 0; j < origin_bmp.bmp_info_header.biWidth; j++)
{
temp_index = temp_row_index + j;
temp_B = double(origin_bmp.bmp_pixel24_RGB[temp_index].rgbtBlue) / 255;
temp_G = double(origin_bmp.bmp_pixel24_RGB[temp_index].rgbtGreen) / 255;
temp_R = double(origin_bmp.bmp_pixel24_RGB[temp_index].rgbtRed) / 255;
R_minus_G = temp_R - temp_G;
R_minus_B = temp_R - temp_B;
G_minus_B = temp_G - temp_B;
R_G_B_sum = temp_B + temp_G + temp_R;
//***色调
temp_theta = acos(0.5 * ((R_minus_G)+(R_minus_B)) / sqrt(R_minus_G * R_minus_G + R_minus_B * G_minus_B + 1e-300)); //避免除以0
temp_theta = abs(temp_theta * 180 / pi); //弧度转换成角度
origin_bmp.bmp_pixel24_H_double[temp_index] = temp_B > temp_G ? (360.0 - temp_theta) : temp_theta;
//***饱和度
if (origin_bmp.bmp_pixel24_RGB[temp_index].rgbtBlue == 0 && origin_bmp.bmp_pixel24_RGB[temp_index].rgbtGreen == 0
&& origin_bmp.bmp_pixel24_RGB[temp_index].rgbtRed == 0) // 原R=G=B=0，即纯黑时，饱和度为0
origin_bmp.bmp_pixel24_S_double[temp_index] = 0.0;
else
origin_bmp.bmp_pixel24_S_double[temp_index] = 1.0 - 3.0 * min(min(temp_R, temp_G), temp_B) / (R_G_B_sum);
//***亮度
origin_bmp.bmp_pixel24_I_double[temp_index] = R_G_B_sum / 3;
}
}
//**对亮度直方图均衡化处理
int top = 255;
int* I_integer = new int[num_pixel];
for (int i = 0; i < num_pixel; i++)I_integer[i] = CLAMP_0_x(origin_bmp.bmp_pixel24_I_double[i] * top, top);
int* hist_counting = hist_0_x(I_integer, origin_bmp.bmp_info_header.biWidth, origin_bmp.bmp_info_header.biHeight, top);
int* transformation_result = new int[top + 1];
int total_counting = 0;
//***L-1 = 256-1 = 255 或 L-1 = top
for (int i = 0; i <= top; i++)
{
total_counting += hist_counting[i];
transformation_result[i] = (int)(double(top) * total_counting / num_pixel + 0.5);
}
if (num_pixel > 1) //以防访问越界
for (int i = 0; i < num_pixel; i++)
{
int temp = I_integer[i];
I_integer[i] = transformation_result[temp];
}
//**转换回RGB域
double* I_result = new double[num_pixel];
for (int i = 0; i < num_pixel; i++)I_result[i] = double(I_integer[i]) / top;
tagRGBTRIPLE* new_pixel24_RGB = new tagRGBTRIPLE[origin_bmp.bmp_info_header.biWidth * origin_bmp.bmp_info_header.biHeight];
double temp_H = 0.0;
if (num_pixel > 1) //以防访问越界
for (int i = 0; i < origin_bmp.bmp_info_header.biHeight; i++)
{
temp_row_index = i * origin_bmp.bmp_info_header.biWidth;
for (int j = 0; j < origin_bmp.bmp_info_header.biWidth; j++)
{
temp_index = temp_row_index + j;
temp_H = origin_bmp.bmp_pixel24_H_double[temp_index];
if (temp_H < 120)
{
temp_H = temp_H * pi / 180; // 变为弧度制以便<cmath>的cos处理
temp_B = I_result[temp_index] * (1.0 - origin_bmp.bmp_pixel24_S_double[temp_index]);
temp_R = I_result[temp_index] * (1.0 + (origin_bmp.bmp_pixel24_S_double[temp_index] * cos(temp_H) / cos(pi / 3 - temp_H)));
temp_G = 3.0 * I_result[temp_index] - (temp_R + temp_B);
new_pixel24_RGB[temp_index].rgbtBlue = CLAMP_0_255(temp_B * 255);
new_pixel24_RGB[temp_index].rgbtRed = CLAMP_0_255(temp_R * 255);
new_pixel24_RGB[temp_index].rgbtGreen = CLAMP_0_255(temp_G * 255);
}
else if (temp_H >= 120 && temp_H < 240)
{
temp_H -= 120;
temp_H = temp_H * pi / 180; // 变为弧度制以便<cmath>的cos处理
temp_R = I_result[temp_index] * (1.0 - origin_bmp.bmp_pixel24_S_double[temp_index]);
temp_G = I_result[temp_index] * (1.0 + (origin_bmp.bmp_pixel24_S_double[temp_index] * cos(temp_H) / cos(pi / 3 - temp_H)));
temp_B = 3.0 * I_result[temp_index] - (temp_R + temp_G);
new_pixel24_RGB[temp_index].rgbtBlue = CLAMP_0_255(temp_B * 255);
new_pixel24_RGB[temp_index].rgbtRed = CLAMP_0_255(temp_R * 255);
new_pixel24_RGB[temp_index].rgbtGreen = CLAMP_0_255(temp_G * 255);
}
else if (temp_H >= 240 && temp_H <= 360)
{
temp_H -= 240;
temp_H = temp_H * pi / 180; // 变为弧度制以便<cmath>的cos处理
temp_G = I_result[temp_index] * (1.0 - origin_bmp.bmp_pixel24_S_double[temp_index]);
temp_B = I_result[temp_index] * (1.0 + (origin_bmp.bmp_pixel24_S_double[temp_index] * cos(temp_H) / cos(pi / 3 - temp_H)));
temp_R = 3.0 * I_result[temp_index] - (temp_G + temp_B);
new_pixel24_RGB[temp_index].rgbtBlue = CLAMP_0_255(temp_B * 255);
new_pixel24_RGB[temp_index].rgbtRed = CLAMP_0_255(temp_R * 255);
new_pixel24_RGB[temp_index].rgbtGreen = CLAMP_0_255(temp_G * 255);
}
}
}
//**结果bmp
result_bmp.bmp_file_header.bfType = origin_bmp.bmp_file_header.bfType;
result_bmp.bmp_file_header.bfReserved1 = origin_bmp.bmp_file_header.bfReserved1;
result_bmp.bmp_file_header.bfReserved2 = origin_bmp.bmp_file_header.bfReserved2;
result_bmp.bmp_file_header.bfSize = origin_bmp.bmp_file_header.bfSize;
result_bmp.bmp_file_header.bfOffBits = origin_bmp.bmp_file_header.bfOffBits;
result_bmp.bmp_info_header.biHeight = origin_bmp.bmp_info_header.biHeight;
result_bmp.bmp_info_header.biWidth = origin_bmp.bmp_info_header.biWidth;
result_bmp.bmp_info_header.biBitCount = origin_bmp.bmp_info_header.biBitCount;
result_bmp.bmp_info_header.biClrImportant = origin_bmp.bmp_info_header.biClrUsed;
result_bmp.bmp_info_header.biClrUsed = origin_bmp.bmp_info_header.biClrImportant;
result_bmp.bmp_info_header.biCompression = origin_bmp.bmp_info_header.biCompression;
result_bmp.bmp_info_header.biPlanes = origin_bmp.bmp_info_header.biPlanes;
result_bmp.bmp_info_header.biSize = origin_bmp.bmp_info_header.biSize;
result_bmp.bmp_info_header.biSizeImage = origin_bmp.bmp_info_header.biSizeImage;
result_bmp.bmp_info_header.biXPelsPerMeter = origin_bmp.bmp_info_header.biXPelsPerMeter;
result_bmp.bmp_info_header.biYPelsPerMeter = origin_bmp.bmp_info_header.biYPelsPerMeter;
result_bmp.biWidth_actual = origin_bmp.biWidth_actual;
result_bmp.bmp_pixel24_RGB = new_pixel24_RGB;
delete[] I_integer, I_result, transformation_result;
}
break;
default:
break;
}
return result_bmp;
}
//直方图均衡化：可指定图片偏亮或偏暗
bmp_file histogram_equalize(bmp_file origin_bmp, bool dark)
{
int num_pixel = origin_bmp.bmp_info_header.biWidth * origin_bmp.bmp_info_header.biHeight;
int num_pixel_actual = origin_bmp.biWidth_actual * origin_bmp.bmp_info_header.biHeight;
bmp_file result_bmp;
switch (origin_bmp.bmp_info_header.biBitCount)
{
case 8: //* 8位（256色）bmp
{
//提取像素
uint8_t* pixel = new uint8_t[num_pixel_actual];
long temp_index = 0;
if (num_pixel_actual > 1) //以防pixel访问越界
for (long i = 0; i < origin_bmp.bmp_info_header.biHeight; i++)
{
for (long j = 0; j < origin_bmp.bmp_info_header.biWidth; j++)
pixel[i * origin_bmp.biWidth_actual + j] = origin_bmp.bmp_pixel8[i * origin_bmp.biWidth_actual + j];
//for (long j= origin_bmp.bmp_info_header.biWidth;j<origin_bmp.biWidth_actual;j++)
// pixel[i * origin_bmp.bmp_info_header.biWidth + j]
}
int* hist_counting = hist_0_255(pixel, origin_bmp.bmp_info_header.biWidth, origin_bmp.bmp_info_header.biHeight, origin_bmp.biWidth_actual);
uint8_t* transformation_result = new uint8_t[256];
int total_counting = 0;
//*L-1 = 256-1 = 255
for (int i = 0; i < 256; i++)
{
total_counting += hist_counting[i];
transformation_result[i] = uint8_t(round(255.0 * total_counting / num_pixel));
}
if (num_pixel_actual > 1) //以防pixel访问越界
for (long i = 0; i < origin_bmp.bmp_info_header.biHeight; i++)
for (long j = 0; j < origin_bmp.bmp_info_header.biWidth; j++)
{
temp_index = i * origin_bmp.bmp_info_header.biWidth + j;
uint8_t temp = transformation_result[pixel[temp_index]];
pixel[temp_index] = temp;
}
//结果bmp
result_bmp.bmp_file_header.bfType = origin_bmp.bmp_file_header.bfType;
result_bmp.bmp_file_header.bfReserved1 = origin_bmp.bmp_file_header.bfReserved1;
result_bmp.bmp_file_header.bfReserved2 = origin_bmp.bmp_file_header.bfReserved2;
result_bmp.bmp_file_header.bfSize = origin_bmp.bmp_file_header.bfSize;
result_bmp.bmp_file_header.bfOffBits = origin_bmp.bmp_file_header.bfOffBits;
result_bmp.bmp_info_header.biHeight = origin_bmp.bmp_info_header.biHeight;
result_bmp.bmp_info_header.biWidth = origin_bmp.bmp_info_header.biWidth;
result_bmp.bmp_info_header.biBitCount = origin_bmp.bmp_info_header.biBitCount;
result_bmp.bmp_info_header.biClrImportant = origin_bmp.bmp_info_header.biClrUsed;
result_bmp.bmp_info_header.biClrUsed = origin_bmp.bmp_info_header.biClrImportant;
result_bmp.bmp_info_header.biCompression = origin_bmp.bmp_info_header.biCompression;
result_bmp.bmp_info_header.biPlanes = origin_bmp.bmp_info_header.biPlanes;
result_bmp.bmp_info_header.biSize = origin_bmp.bmp_info_header.biSize;
result_bmp.bmp_info_header.biSizeImage = origin_bmp.bmp_info_header.biSizeImage;
result_bmp.bmp_info_header.biXPelsPerMeter = origin_bmp.bmp_info_header.biXPelsPerMeter;
result_bmp.bmp_info_header.biYPelsPerMeter = origin_bmp.bmp_info_header.biYPelsPerMeter;
result_bmp.bmp_pixel8 = pixel;
result_bmp.biWidth_actual = origin_bmp.biWidth_actual;
delete[] transformation_result;
}
break;
case 24: //* 24位（真彩色）bmp
{
//**转换到HSI域
origin_bmp.bmp_pixel24_H_double = new double[num_pixel];
origin_bmp.bmp_pixel24_S_double = new double[num_pixel];
origin_bmp.bmp_pixel24_I_double = new double[num_pixel];
memset(origin_bmp.bmp_pixel24_H_double, 0, sizeof(double) * num_pixel);
memset(origin_bmp.bmp_pixel24_S_double, 0, sizeof(double) * num_pixel);
memset(origin_bmp.bmp_pixel24_I_double, 0, sizeof(double) * num_pixel);
double temp_theta = 0.0;
double temp_R = 0.0, temp_G = 0.0, temp_B = 0.0;
double R_G_B_sum = 0.0;
double R_minus_G = 0.0, R_minus_B = 0.0, G_minus_B = 0.0;
int temp_row_index = 0, temp_index = 0;
if (num_pixel > 1) //以防访问越界
for (int i = 0; i < origin_bmp.bmp_info_header.biHeight; i++)
{
temp_row_index = i * origin_bmp.bmp_info_header.biWidth;
for (int j = 0; j < origin_bmp.bmp_info_header.biWidth; j++)
{
temp_index = temp_row_index + j;
temp_B = double(origin_bmp.bmp_pixel24_RGB[temp_index].rgbtBlue) / 255;
temp_G = double(origin_bmp.bmp_pixel24_RGB[temp_index].rgbtGreen) / 255;
temp_R = double(origin_bmp.bmp_pixel24_RGB[temp_index].rgbtRed) / 255;
R_minus_G = temp_R - temp_G;
R_minus_B = temp_R - temp_B;
G_minus_B = temp_G - temp_B;
R_G_B_sum = temp_B + temp_G + temp_R;
//***色调
temp_theta = acos(0.5 * ((R_minus_G)+(R_minus_B)) / sqrt(R_minus_G * R_minus_G + R_minus_B * G_minus_B + 1e-300)); //避免除以0
temp_theta = abs(temp_theta * 180 / pi); //弧度转换成角度
origin_bmp.bmp_pixel24_H_double[temp_index] = temp_B > temp_G ? (360.0 - temp_theta) : temp_theta;
//***饱和度
if (origin_bmp.bmp_pixel24_RGB[temp_index].rgbtBlue == 0 && origin_bmp.bmp_pixel24_RGB[temp_index].rgbtGreen == 0
&& origin_bmp.bmp_pixel24_RGB[temp_index].rgbtRed == 0) // 原R=G=B=0，即纯黑时，饱和度为0
origin_bmp.bmp_pixel24_S_double[temp_index] = 0.0;
else
origin_bmp.bmp_pixel24_S_double[temp_index] = 1.0 - 3.0 * min(min(temp_R, temp_G), temp_B) / (R_G_B_sum);
//***亮度
origin_bmp.bmp_pixel24_I_double[temp_index] = R_G_B_sum / 3;
}
}
//**对亮度直方图均衡化处理
int top = 255;
int* I_integer = new int[num_pixel];
for (int i = 0; i < num_pixel; i++)I_integer[i] = CLAMP_0_x(origin_bmp.bmp_pixel24_I_double[i] * top, top);
int* hist_counting = hist_0_x(I_integer, origin_bmp.bmp_info_header.biWidth, origin_bmp.bmp_info_header.biHeight, top);
int* transformation_result = new int[top + 1];
int total_counting = 0;
//***L-1 = 256-1 = 255
//***L-1 = top
for (int i = 0; i <= top; i++)
{
total_counting += hist_counting[i];
transformation_result[i] = (int)(double(top) * total_counting / num_pixel + 0.5);
}
if (num_pixel > 1) //以防访问越界
for (int i = 0; i < num_pixel; i++)
{
int temp = I_integer[i];
I_integer[i] = transformation_result[temp];
}
////**饱和度均衡化处理
if (!dark)
for (int i = 0; i < num_pixel; i++)
{
if (origin_bmp.bmp_pixel24_I_double[i] <= 0.5)
{
if (origin_bmp.bmp_pixel24_S_double[i] <= origin_bmp.bmp_pixel24_I_double[i] * 2)
origin_bmp.bmp_pixel24_S_double[i] = origin_bmp.bmp_pixel24_S_double[i] * 6;
else
origin_bmp.bmp_pixel24_S_double[i] = 0.0;
}
else
{
if (origin_bmp.bmp_pixel24_S_double[i] <= (1.0 - origin_bmp.bmp_pixel24_I_double[i]) * 2)
origin_bmp.bmp_pixel24_S_double[i] = origin_bmp.bmp_pixel24_S_double[i] * 6;
else
origin_bmp.bmp_pixel24_S_double[i] = 0.0;
}
//origin_bmp.bmp_pixel24_S_double[i] = 6 * origin_bmp.bmp_pixel24_S_double[i] * (1 - origin_bmp.bmp_pixel24_S_double[i]);
if (origin_bmp.bmp_pixel24_S_double[i] > 1)origin_bmp.bmp_pixel24_S_double[i] = 1.0;
}
//**转换回RGB域
double* I_result = new double[num_pixel];
for (int i = 0; i < num_pixel; i++)I_result[i] = double(I_integer[i]) / top;
tagRGBTRIPLE* new_pixel24_RGB = new tagRGBTRIPLE[origin_bmp.bmp_info_header.biWidth * origin_bmp.bmp_info_header.biHeight];
double temp_H = 0.0;
if (num_pixel > 1) //以防访问越界
for (int i = 0; i < origin_bmp.bmp_info_header.biHeight; i++)
{
temp_row_index = i * origin_bmp.bmp_info_header.biWidth;
for (int j = 0; j < origin_bmp.bmp_info_header.biWidth; j++)
{
temp_index = temp_row_index + j;
temp_H = origin_bmp.bmp_pixel24_H_double[temp_index];
if (temp_H < 120)
{
temp_H = temp_H * pi / 180; // 变为弧度制以便<cmath>的cos处理
temp_B = I_result[temp_index] * (1.0 - origin_bmp.bmp_pixel24_S_double[temp_index]);
temp_R = I_result[temp_index] * (1.0 + (origin_bmp.bmp_pixel24_S_double[temp_index] * cos(temp_H) / cos(pi / 3 - temp_H)));
temp_G = 3.0 * I_result[temp_index] - (temp_R + temp_B);
new_pixel24_RGB[temp_index].rgbtBlue = CLAMP_0_255(temp_B * 255);
new_pixel24_RGB[temp_index].rgbtRed = CLAMP_0_255(temp_R * 255);
new_pixel24_RGB[temp_index].rgbtGreen = CLAMP_0_255(temp_G * 255);
}
else if (temp_H >= 120 && temp_H < 240)
{
temp_H -= 120;
temp_H = temp_H * pi / 180; // 变为弧度制以便<cmath>的cos处理
temp_R = I_result[temp_index] * (1.0 - origin_bmp.bmp_pixel24_S_double[temp_index]);
temp_G = I_result[temp_index] * (1.0 + (origin_bmp.bmp_pixel24_S_double[temp_index] * cos(temp_H) / cos(pi / 3 - temp_H)));
temp_B = 3.0 * I_result[temp_index] - (temp_R + temp_G);
new_pixel24_RGB[temp_index].rgbtBlue = CLAMP_0_255(temp_B * 255);
new_pixel24_RGB[temp_index].rgbtRed = CLAMP_0_255(temp_R * 255);
new_pixel24_RGB[temp_index].rgbtGreen = CLAMP_0_255(temp_G * 255);
}
else if (temp_H >= 240 && temp_H <= 360)
{
temp_H -= 240;
temp_H = temp_H * pi / 180; // 变为弧度制以便<cmath>的cos处理
temp_G = I_result[temp_index] * (1.0 - origin_bmp.bmp_pixel24_S_double[temp_index]);
temp_B = I_result[temp_index] * (1.0 + (origin_bmp.bmp_pixel24_S_double[temp_index] * cos(temp_H) / cos(pi / 3 - temp_H)));
temp_R = 3.0 * I_result[temp_index] - (temp_G + temp_B);
new_pixel24_RGB[temp_index].rgbtBlue = CLAMP_0_255(temp_B * 255);
new_pixel24_RGB[temp_index].rgbtRed = CLAMP_0_255(temp_R * 255);
new_pixel24_RGB[temp_index].rgbtGreen = CLAMP_0_255(temp_G * 255);
}
}
}
//**结果bmp
result_bmp.bmp_file_header.bfType = origin_bmp.bmp_file_header.bfType;
result_bmp.bmp_file_header.bfReserved1 = origin_bmp.bmp_file_header.bfReserved1;
result_bmp.bmp_file_header.bfReserved2 = origin_bmp.bmp_file_header.bfReserved2;
result_bmp.bmp_file_header.bfSize = origin_bmp.bmp_file_header.bfSize;
result_bmp.bmp_file_header.bfOffBits = origin_bmp.bmp_file_header.bfOffBits;
result_bmp.bmp_info_header.biHeight = origin_bmp.bmp_info_header.biHeight;
result_bmp.bmp_info_header.biWidth = origin_bmp.bmp_info_header.biWidth;
result_bmp.bmp_info_header.biBitCount = origin_bmp.bmp_info_header.biBitCount;
result_bmp.bmp_info_header.biClrImportant = origin_bmp.bmp_info_header.biClrUsed;
result_bmp.bmp_info_header.biClrUsed = origin_bmp.bmp_info_header.biClrImportant;
result_bmp.bmp_info_header.biCompression = origin_bmp.bmp_info_header.biCompression;
result_bmp.bmp_info_header.biPlanes = origin_bmp.bmp_info_header.biPlanes;
result_bmp.bmp_info_header.biSize = origin_bmp.bmp_info_header.biSize;
result_bmp.bmp_info_header.biSizeImage = origin_bmp.bmp_info_header.biSizeImage;
result_bmp.bmp_info_header.biXPelsPerMeter = origin_bmp.bmp_info_header.biXPelsPerMeter;
result_bmp.bmp_info_header.biYPelsPerMeter = origin_bmp.bmp_info_header.biYPelsPerMeter;
result_bmp.biWidth_actual = origin_bmp.biWidth_actual;
result_bmp.bmp_pixel24_RGB = new_pixel24_RGB;
delete[] I_integer, I_result, transformation_result;
}
break;
default:
break;
}
return result_bmp;
}