idk what i have done
This commit is contained in:
parent
56469f3fce
commit
cbbda43098
Binary file not shown.
|
Before Width: | Height: | Size: 78 B After Width: | Height: | Size: 66 B |
|
|
@ -0,0 +1,2 @@
|
||||||
|
|
||||||
|
*height = info_h.biHeight;
|
||||||
Binary file not shown.
|
After Width: | Height: | Size: 169 KiB |
|
|
@ -0,0 +1,619 @@
|
||||||
|
#include "image.h"
|
||||||
|
#include <cstdio>
|
||||||
|
#include <cstdlib>
|
||||||
|
#include <string>
|
||||||
|
#include <cstring>
|
||||||
|
using namespace std;
|
||||||
|
//普通构造函数
|
||||||
|
Image::Image(int h, int w) :height(h), width(w)
|
||||||
|
{
|
||||||
|
this->height = h;
|
||||||
|
this->width = w;
|
||||||
|
// 动态分配二维数组存储像素数据，注意先申请一个存放指针的数组，
|
||||||
|
data = (unsigned char **)malloc(sizeof(unsigned char*) * this->height);
|
||||||
|
//其大小为sizeof(unsigned char*) * bitmapinfoheader.biHeight，这点很容易错
|
||||||
|
//申请行指针
|
||||||
|
for (int i = 0; i < this->height; i++)
|
||||||
|
{
|
||||||
|
//注意3通道，每个像素3个字节
|
||||||
|
data[i] = (unsigned char *)malloc(this->width * 3);
|
||||||
|
// 读取像素数据
|
||||||
|
for (int j = 0; j < this->width; j++)
|
||||||
|
{
|
||||||
|
data[i][j] = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Image::Image(int h, int w, unsigned char val)//创建的图像像素值都为val;
|
||||||
|
{
|
||||||
|
this->height = h;
|
||||||
|
this->width = w;
|
||||||
|
// 动态分配二维数组存储像素数据，注意先申请一个存放指针的数组，
|
||||||
|
data = (unsigned char **)malloc(sizeof(unsigned char*) * this->height);
|
||||||
|
//其大小为sizeof(unsigned char*) * bitmapinfoheader.biHeight，这点很容易错
|
||||||
|
//申请行指针
|
||||||
|
for (int i = 0; i < this->height; i++)
|
||||||
|
{
|
||||||
|
//注意3通道，每个像素3个字节
|
||||||
|
data[i] = (unsigned char *)malloc(this->width * 3);
|
||||||
|
// 读取像素数据
|
||||||
|
for (int j = 0; j < this->width; j++)
|
||||||
|
{
|
||||||
|
data[i][j] = val;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Image::Image(const char* ImageName)//利用文件名从硬盘加载图像文件成为Image对象;
|
||||||
|
{
|
||||||
|
this->ReadBMP(ImageName);
|
||||||
|
}
|
||||||
|
Image::Image(unsigned char *m, int rows, int cols)//从一维静态数组创建Image对象，图像的行数和列数由后面两个参数给出;
|
||||||
|
{
|
||||||
|
this->height = rows;
|
||||||
|
this->width = cols;
|
||||||
|
// 动态分配二维数组存储像素数据，注意先申请一个存放指针的数组，
|
||||||
|
data = (unsigned char **)malloc(sizeof(unsigned char*) * this->height);
|
||||||
|
//其大小为sizeof(unsigned char*) * bitmapinfoheader.biHeight，这点很容易错
|
||||||
|
//申请行指针
|
||||||
|
for (int i = 0; i < this->height; i++)
|
||||||
|
{
|
||||||
|
//注意3通道，每个像素3个字节
|
||||||
|
data[i] = (unsigned char *)malloc(this->width * 3);
|
||||||
|
// 读取像素数据
|
||||||
|
for (int j = 0; j < this->width; j++)
|
||||||
|
{
|
||||||
|
data[i][j] = *m;
|
||||||
|
m++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Image::Image(unsigned char m[][100], int rows)//从静态二维数组创建Image对象，图像的行数（二维数组的第一个维度）由第二个参数rows给出;
|
||||||
|
{
|
||||||
|
this->height = rows;
|
||||||
|
this->width = 100;
|
||||||
|
// 动态分配二维数组存储像素数据，注意先申请一个存放指针的数组，
|
||||||
|
data = (unsigned char **)malloc(sizeof(unsigned char*) * this->height);
|
||||||
|
//其大小为sizeof(unsigned char*) * bitmapinfoheader.biHeight，这点很容易错
|
||||||
|
//申请行指针
|
||||||
|
for (int i = 0; i < this->height; i++)
|
||||||
|
{
|
||||||
|
//注意3通道，每个像素3个字节
|
||||||
|
data[i] = (unsigned char *)malloc(this->width * 3);
|
||||||
|
// 读取像素数据
|
||||||
|
for (int j = 0; j < this->width; j++)
|
||||||
|
{
|
||||||
|
data[i][j] = m[i][j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Image::Image(unsigned char **m, int h, int w)//从动态数组（二级指针）创建Image对象，图像的行数和列数由后面两个参数给出;
|
||||||
|
{
|
||||||
|
this->height = h;
|
||||||
|
this->width = w;
|
||||||
|
// 动态分配二维数组存储像素数据，注意先申请一个存放指针的数组，
|
||||||
|
data = (unsigned char **)malloc(sizeof(unsigned char*) * this->height);
|
||||||
|
//其大小为sizeof(unsigned char*) * bitmapinfoheader.biHeight，这点很容易错
|
||||||
|
//申请行指针
|
||||||
|
for (int i = 0; i < this->height; i++)
|
||||||
|
{
|
||||||
|
//注意3通道，每个像素3个字节
|
||||||
|
data[i] = (unsigned char *)malloc(this->width * 3);
|
||||||
|
// 读取像素数据
|
||||||
|
for (int j = 0; j < this->width; j++)
|
||||||
|
{
|
||||||
|
data[i][j] = m[i][j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
//拷贝构造函数
|
||||||
|
Image::Image(Image &im)
|
||||||
|
{
|
||||||
|
if (this->data)
|
||||||
|
{
|
||||||
|
delete[] this->data;
|
||||||
|
this->data = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
*this = im;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
//释放堆区数据
|
||||||
|
void Image::myFree(unsigned char** data, int h)
|
||||||
|
{
|
||||||
|
for (int i = 0; i < h; i++)
|
||||||
|
{
|
||||||
|
free(data[i]);
|
||||||
|
data[i] = NULL;
|
||||||
|
}
|
||||||
|
free(data);
|
||||||
|
data = NULL;
|
||||||
|
puts("释放堆区数据");
|
||||||
|
}
|
||||||
|
//析构函数
|
||||||
|
Image::~Image()
|
||||||
|
{
|
||||||
|
this->myFree(this->data, this->height);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
//从硬盘读入图像文件，存储到image类中
|
||||||
|
void Image::ReadBMP(const char* filename)
|
||||||
|
{
|
||||||
|
FILE* fp = NULL; // C标准库的文件指针
|
||||||
|
fp = fopen(filename, "rb"); // 二进制读取方式打开文件
|
||||||
|
|
||||||
|
// 读取文件头
|
||||||
|
fread(&bmpfileheader, sizeof(bmpfileheader), 1, fp);
|
||||||
|
// 读取信息头
|
||||||
|
fread(&bitmapinfoheader, sizeof(bitmapinfoheader), 1, fp);
|
||||||
|
|
||||||
|
// 动态分配二维数组存储像素数据，注意先申请一个存放指针的数组，
|
||||||
|
data = (unsigned char **)malloc(sizeof(unsigned char*) * bitmapinfoheader.biHeight);
|
||||||
|
//其大小为sizeof(unsigned char*) * bitmapinfoheader.biHeight，这点很容易错
|
||||||
|
//申请行指针
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
//注意3通道，每个像素3个字节
|
||||||
|
data[i] = (unsigned char *)malloc(bitmapinfoheader.biWidth * 3);
|
||||||
|
// 读取像素数据
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biWidth * 3; j++)
|
||||||
|
{
|
||||||
|
fread(&data[i][j], 1, 1, fp);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
this->height = this->bitmapinfoheader.biHeight;
|
||||||
|
this->width = this->bitmapinfoheader.biWidth;
|
||||||
|
printf("height = %d width = %d\n",this->height,this->width);
|
||||||
|
|
||||||
|
// 关闭读取的文件
|
||||||
|
fclose(fp);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
//保存bmp图像
|
||||||
|
void Image::WriteBMP(const char *filename)
|
||||||
|
{
|
||||||
|
FILE* fp = NULL; // 保存文件的文件指针
|
||||||
|
fp = fopen(filename, "wb"); // 二进制写入方式打开文件
|
||||||
|
// 写入文件头
|
||||||
|
fwrite(&bmpfileheader, sizeof(bmpfileheader), 1, fp);
|
||||||
|
// 写入信息头
|
||||||
|
fwrite(&bitmapinfoheader, sizeof(bitmapinfoheader), 1, fp);
|
||||||
|
// 写入数据
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
fwrite(data[i], bitmapinfoheader.biWidth * 3, 1, fp);
|
||||||
|
}
|
||||||
|
// 关闭写入的文件
|
||||||
|
fclose(fp);
|
||||||
|
}
|
||||||
|
//保存bmp图像
|
||||||
|
void Image::WriteBMP(const char *filename, unsigned char** data)
|
||||||
|
{
|
||||||
|
FILE* fp = NULL; // 保存文件的文件指针
|
||||||
|
fp = fopen(filename, "wb"); // 二进制写入方式打开文件
|
||||||
|
// 写入文件头
|
||||||
|
fwrite(&bmpfileheader, sizeof(bmpfileheader), 1, fp);
|
||||||
|
// 写入信息头
|
||||||
|
fwrite(&bitmapinfoheader, sizeof(bitmapinfoheader), 1, fp);
|
||||||
|
// 写入数据
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
fwrite(data[i], bitmapinfoheader.biWidth * 3, 1, fp);
|
||||||
|
}
|
||||||
|
// 关闭写入的文件
|
||||||
|
fclose(fp);
|
||||||
|
}
|
||||||
|
//保存bmp图像
|
||||||
|
void Image::WriteBMP(const char *filename, unsigned char** t_data,
|
||||||
|
BMPFILEHEADER bmpfileheader, BITMAPINFOHEADER t_bitmapinfoheader)
|
||||||
|
{
|
||||||
|
FILE* fp = NULL; // 保存文件的文件指针
|
||||||
|
fp = fopen(filename, "wb"); // 二进制写入方式打开文件
|
||||||
|
// 写入文件头
|
||||||
|
fwrite(&bmpfileheader, sizeof(bmpfileheader), 1, fp);
|
||||||
|
// 写入信息头
|
||||||
|
fwrite(&t_bitmapinfoheader, sizeof(t_bitmapinfoheader), 1, fp);
|
||||||
|
// 写入数据
|
||||||
|
for (int i = 0; i < t_bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
fwrite(t_data[i], t_bitmapinfoheader.biWidth * 3, 1, fp);
|
||||||
|
}
|
||||||
|
// 关闭写入的文件
|
||||||
|
fclose(fp);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
//从文本文件读取
|
||||||
|
void Image::ReadText(const char* filename)
|
||||||
|
{
|
||||||
|
FILE* fp = NULL; // C标准库的文件指针
|
||||||
|
fp = fopen(filename, "rb"); // 二进制读取方式打开文件
|
||||||
|
|
||||||
|
fread(&bitmapinfoheader.biHeight, sizeof(bitmapinfoheader.biHeight), 1, fp);
|
||||||
|
fread(&bitmapinfoheader.biWidth, sizeof(bitmapinfoheader.biWidth), 1, fp);
|
||||||
|
|
||||||
|
// 动态分配二维数组存储像素数据，注意先申请一个存放指针的数组，
|
||||||
|
data = (unsigned char **)malloc(sizeof(unsigned char*) * bitmapinfoheader.biHeight);
|
||||||
|
//其大小为sizeof(unsigned char*) * bitmapinfoheader.biHeight，这点很容易错
|
||||||
|
//申请行指针
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
//注意3通道，每个像素3个字节
|
||||||
|
data[i] = (unsigned char *)malloc(bitmapinfoheader.biWidth * 3);
|
||||||
|
// 读取像素数据
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biWidth * 3; j++)
|
||||||
|
{
|
||||||
|
fread(&data[i][j], 1, 1, fp);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// 关闭读取的文件
|
||||||
|
fclose(fp);
|
||||||
|
}
|
||||||
|
//保存成文本文件
|
||||||
|
void Image::WriteText(const char *filename)
|
||||||
|
{
|
||||||
|
FILE* fp = NULL; // 保存文件的文件指针
|
||||||
|
fp = fopen(filename, "wb"); // 二进制写入方式打开文件
|
||||||
|
// 写入信息头
|
||||||
|
fwrite(&bitmapinfoheader.biHeight, sizeof(bitmapinfoheader.biHeight), 1, fp);
|
||||||
|
fwrite(&bitmapinfoheader.biWidth, sizeof(bitmapinfoheader.biWidth), 1, fp);
|
||||||
|
// 写入数据
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
fwrite(data[i], bitmapinfoheader.biWidth * 3, 1, fp);
|
||||||
|
}
|
||||||
|
// 关闭写入的文件
|
||||||
|
fclose(fp);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
//获取图像中指定点的值
|
||||||
|
unsigned char& Image::At(int row, int col)
|
||||||
|
{
|
||||||
|
return this->data[row * 3][col * 3];
|
||||||
|
}
|
||||||
|
//设置像素(row,col)为某值
|
||||||
|
void Image::Set(int row, int col, unsigned char value)
|
||||||
|
{
|
||||||
|
//重新读取数据
|
||||||
|
unsigned char** t_data = (unsigned char**)malloc(sizeof(unsigned char*) * bitmapinfoheader.biHeight);
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
t_data[i] = (unsigned char*)malloc(bitmapinfoheader.biWidth * 3);
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biWidth * 3; j++)
|
||||||
|
{
|
||||||
|
t_data[i][j] = data[i][j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
//修改像数值
|
||||||
|
for (int i = 0; i < 3; i++)
|
||||||
|
{
|
||||||
|
t_data[row * 3 + i][col * 3 + i] = value;
|
||||||
|
}
|
||||||
|
//保存图像
|
||||||
|
this->WriteBMP("setImg.bmp", t_data);
|
||||||
|
myFree(t_data, bitmapinfoheader.biHeight);
|
||||||
|
}
|
||||||
|
//设置图像所有像素为同一值
|
||||||
|
void Image::Set(unsigned char value)
|
||||||
|
{
|
||||||
|
//重新读取数据
|
||||||
|
unsigned char** t_data = (unsigned char**)malloc(sizeof(unsigned char*) * bitmapinfoheader.biHeight);
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
t_data[i] = (unsigned char*)malloc(bitmapinfoheader.biWidth * 3);
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biWidth * 3; j++)
|
||||||
|
{
|
||||||
|
t_data[i][j] = data[i][j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
//修改像数值
|
||||||
|
for (int i = 0; i < this->bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
for (int j = 0; j < this->bitmapinfoheader.biWidth * 3; j++)
|
||||||
|
{
|
||||||
|
t_data[i][j] = value;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
//保存图像
|
||||||
|
this->WriteBMP("setAllImg.bmp", t_data);
|
||||||
|
myFree(t_data, bitmapinfoheader.biHeight);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
//false 左右，true 上下
|
||||||
|
void Image::Flip(int code)
|
||||||
|
{
|
||||||
|
//重新读取数据
|
||||||
|
unsigned char** t_data = (unsigned char**)malloc(sizeof(unsigned char*) * bitmapinfoheader.biHeight);
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
t_data[i] = (unsigned char*)malloc(bitmapinfoheader.biWidth * 3);
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biWidth * 3; j++)
|
||||||
|
{
|
||||||
|
t_data[i][j] = data[i][j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (code)
|
||||||
|
{
|
||||||
|
//上下翻转图片
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight / 2; i++)
|
||||||
|
{
|
||||||
|
unsigned char* temp = t_data[i];
|
||||||
|
t_data[i] = t_data[bitmapinfoheader.biHeight - 1 - i];
|
||||||
|
t_data[bitmapinfoheader.biHeight - 1 - i] = temp;
|
||||||
|
}
|
||||||
|
this->WriteBMP("flipImageUpDown.bmp",t_data);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
//左右翻转图片
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biWidth * 3 / 2; j += 3)
|
||||||
|
{
|
||||||
|
unsigned char temp = t_data[i][j];
|
||||||
|
t_data[i][j] = t_data[i][bitmapinfoheader.biWidth * 3 - 1 - j - 2];
|
||||||
|
t_data[i][bitmapinfoheader.biWidth * 3 - 1 - j - 2] = temp;
|
||||||
|
|
||||||
|
unsigned char temp1 = t_data[i][j+1];
|
||||||
|
t_data[i][j + 1] = t_data[i][bitmapinfoheader.biWidth * 3 - 1 - j - 1];
|
||||||
|
t_data[i][bitmapinfoheader.biWidth * 3 - 1 - j - 1] = temp1;
|
||||||
|
|
||||||
|
unsigned char temp2 = t_data[i][j + 2];
|
||||||
|
t_data[i][j+2] = t_data[i][bitmapinfoheader.biWidth * 3 - 1 - j];
|
||||||
|
t_data[i][bitmapinfoheader.biWidth * 3 - 1 - j] = temp2;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
this->WriteBMP("flipImageLeftRight.bmp",t_data);
|
||||||
|
}
|
||||||
|
|
||||||
|
this->myFree(t_data, this->bitmapinfoheader.biHeight);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
//图像缩小，放大
|
||||||
|
//false缩小,true放大
|
||||||
|
void Image::Resize(int code)
|
||||||
|
{
|
||||||
|
if (code)//放大
|
||||||
|
{
|
||||||
|
/* *
|
||||||
|
*难点主要在于对索引的控制，
|
||||||
|
*因为这里需要两个索引控制四个变量，需要找到它们对应的关系式
|
||||||
|
*/
|
||||||
|
unsigned char** t_data = (unsigned char**)malloc(sizeof(unsigned char*) * bitmapinfoheader.biHeight * 2);
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight ; i++)
|
||||||
|
{
|
||||||
|
t_data[2 * i] = (unsigned char*)malloc(bitmapinfoheader.biWidth * 3 * 2);
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biWidth; j++)
|
||||||
|
{
|
||||||
|
t_data[2 * i][6 * j] = data[i][3 * j];
|
||||||
|
t_data[2 * i][6 * j + 1] = data[i][3 * j + 1];
|
||||||
|
t_data[2 * i][6 * j + 2] = data[i][3 * j + 2];
|
||||||
|
|
||||||
|
t_data[2 * i][6 * j + 3] = data[i][3 * j];
|
||||||
|
t_data[2 * i][6 * j + 3 + 1] = data[i][3 * j + 1];
|
||||||
|
t_data[2 * i][6 * j + 3 + 2] = data[i][3 * j + 2];
|
||||||
|
}
|
||||||
|
|
||||||
|
t_data[2 * i + 1] = (unsigned char*)malloc(bitmapinfoheader.biWidth * 3 * 2);
|
||||||
|
for (int j = 0; j < bitmapinfoheader .biWidth * 6; j++)
|
||||||
|
{
|
||||||
|
t_data[2 * i + 1][j] = t_data[2 * i][j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
BMPFILEHEADER t_bmpfileheader = this->bmpfileheader;
|
||||||
|
BITMAPINFOHEADER t_bitmapinfoheader = this->bitmapinfoheader;
|
||||||
|
|
||||||
|
t_bitmapinfoheader.biHeight *= 2;
|
||||||
|
t_bitmapinfoheader.biWidth *= 2;
|
||||||
|
t_bitmapinfoheader.biSizeImage *= 4;
|
||||||
|
|
||||||
|
this->WriteBMP("magnifyImage.bmp", t_data, t_bmpfileheader, t_bitmapinfoheader);
|
||||||
|
this->myFree(t_data, t_bitmapinfoheader.biHeight);//释放内存
|
||||||
|
}
|
||||||
|
else//缩小
|
||||||
|
{
|
||||||
|
unsigned char** t_data = (unsigned char**)malloc(sizeof(unsigned char*) * bitmapinfoheader.biHeight / 2);
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight / 2; i++)
|
||||||
|
{
|
||||||
|
t_data[i] = (unsigned char*)malloc(bitmapinfoheader.biWidth * 3 / 2);
|
||||||
|
for (int j = 0, index = 0; j < bitmapinfoheader.biWidth / 2; j++)
|
||||||
|
{
|
||||||
|
t_data[i][index++] = data[2 * i][6 * j];
|
||||||
|
t_data[i][index++] = data[2 * i][6 * j + 1];
|
||||||
|
t_data[i][index++] = data[2 * i][6 * j + 2];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
BMPFILEHEADER t_bmpfileheader = this->bmpfileheader;
|
||||||
|
BITMAPINFOHEADER t_bitmapinfoheader = this->bitmapinfoheader;
|
||||||
|
|
||||||
|
t_bitmapinfoheader.biHeight /= 2;
|
||||||
|
t_bitmapinfoheader.biWidth /= 2;
|
||||||
|
t_bitmapinfoheader.biSizeImage /= 4;
|
||||||
|
|
||||||
|
this->WriteBMP("shrinkImage.bmp", t_data, t_bmpfileheader, t_bitmapinfoheader);
|
||||||
|
this->myFree(t_data, t_bitmapinfoheader.biHeight);//释放内存
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
//图像裁剪的函数
|
||||||
|
void Image::Cut(int x1, int y1, int x2, int y2)
|
||||||
|
{//裁剪点(x1,y1)到点(x2,y2)的图像——(0,120) (512,360) h = y2 - y1 = 240, w = x2 - x1 = 512
|
||||||
|
if (x2 > x1 && y2 > y1)
|
||||||
|
{
|
||||||
|
int h = y2 - y1 + 1;
|
||||||
|
int w = x2 - x1 + 1;
|
||||||
|
while (w % 4)
|
||||||
|
{
|
||||||
|
w++;
|
||||||
|
}
|
||||||
|
//重新载入数据
|
||||||
|
unsigned char **t_data = (unsigned char**)malloc(h * sizeof(unsigned char*));
|
||||||
|
//m,n控制t_data的下标,i,j控制data下标
|
||||||
|
for (int i = y1,m = 0; i <= y2; i++, m++)
|
||||||
|
{
|
||||||
|
t_data[m] = (unsigned char*)malloc(w * 3);
|
||||||
|
memset(t_data[m],0, w * 3);
|
||||||
|
for (int j = x1*3, n = 0; j <= x2*3 + 2; j++, n++)
|
||||||
|
{
|
||||||
|
t_data[m][n] = data[i][j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
//重新载入头文件
|
||||||
|
BMPFILEHEADER t_bmpfileheader = this->bmpfileheader;
|
||||||
|
BITMAPINFOHEADER t_bitmapinfoheader = this->bitmapinfoheader;
|
||||||
|
t_bitmapinfoheader.biHeight = h;
|
||||||
|
t_bitmapinfoheader.biWidth = w;
|
||||||
|
//通过公式重新计算biSize
|
||||||
|
t_bitmapinfoheader.biSizeImage = (((w*t_bitmapinfoheader.biBitCount) + 31) / 32 * 4)*h;
|
||||||
|
//保存数据
|
||||||
|
WriteBMP("cutImage.bmp", t_data, t_bmpfileheader, t_bitmapinfoheader);
|
||||||
|
//释放数据
|
||||||
|
myFree(t_data, h);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
puts("输入坐标有误");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
//图像旋转的函数
|
||||||
|
void Image::Rotate(int degree)//图像旋转的函数（简单起见，旋转角度为90度的整数倍）
|
||||||
|
{
|
||||||
|
BMPFILEHEADER t_bmpfileheader = this->bmpfileheader;
|
||||||
|
BITMAPINFOHEADER t_bitmapinfoheader = this->bitmapinfoheader;
|
||||||
|
if (degree == 90)
|
||||||
|
{
|
||||||
|
unsigned char** t_data = (unsigned char**)malloc(sizeof(unsigned char*) * bitmapinfoheader.biWidth);
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biWidth; i++)
|
||||||
|
{
|
||||||
|
t_data[i] = (unsigned char*)malloc(bitmapinfoheader.biHeight * 3);
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biHeight; j++)
|
||||||
|
{
|
||||||
|
t_data[i][j * 3] = data[bitmapinfoheader.biHeight - j - 1][3 * i];
|
||||||
|
t_data[i][j * 3 + 1] = data[bitmapinfoheader.biHeight - j - 1][3 * i + 1];
|
||||||
|
t_data[i][j * 3 + 2] = data[bitmapinfoheader.biHeight - j - 1][3 * i + 2];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
//重写信息头
|
||||||
|
t_bitmapinfoheader.biHeight = this->bitmapinfoheader.biWidth;
|
||||||
|
t_bitmapinfoheader.biWidth = this->bitmapinfoheader.biHeight;
|
||||||
|
//保存图片
|
||||||
|
this->WriteBMP("rotate90.bmp", t_data, t_bmpfileheader, t_bitmapinfoheader);
|
||||||
|
this->myFree(t_data, t_bitmapinfoheader.biHeight);
|
||||||
|
}
|
||||||
|
else if (degree == 180)
|
||||||
|
{
|
||||||
|
unsigned char** t_data = (unsigned char**)malloc(sizeof(unsigned char*) * bitmapinfoheader.biHeight);
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
t_data[i] = (unsigned char*)malloc(bitmapinfoheader.biWidth * 3);
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biWidth; j++)
|
||||||
|
{
|
||||||
|
t_data[i][j * 3] = data[bitmapinfoheader.biHeight - i - 1][bitmapinfoheader.biWidth * 3 - j * 3 - 3];
|
||||||
|
t_data[i][j * 3 + 1] = data[bitmapinfoheader.biHeight - i - 1][bitmapinfoheader.biWidth * 3 - j * 3 - 3 + 1];
|
||||||
|
t_data[i][j * 3 + 2] = data[bitmapinfoheader.biHeight - i - 1][bitmapinfoheader.biWidth * 3 - j * 3 - 3 + 2];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
//保存图片
|
||||||
|
this->WriteBMP("rotate180.bmp", t_data);
|
||||||
|
this->myFree(t_data, t_bitmapinfoheader.biHeight);
|
||||||
|
}
|
||||||
|
else if (degree == 270)
|
||||||
|
{
|
||||||
|
unsigned char** t_data = (unsigned char**)malloc(sizeof(unsigned char*) * bitmapinfoheader.biWidth);
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biWidth; i++)
|
||||||
|
{
|
||||||
|
t_data[i] = (unsigned char*)malloc(bitmapinfoheader.biHeight * 3);
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biHeight; j++)
|
||||||
|
{
|
||||||
|
t_data[i][j * 3] = data[j][bitmapinfoheader.biWidth * 3 - 3 -i * 3];
|
||||||
|
t_data[i][j * 3 + 1] = data[j][bitmapinfoheader.biWidth * 3 - 3 - i * 3 + 1];
|
||||||
|
t_data[i][j * 3 + 2] = data[j][bitmapinfoheader.biWidth * 3 - 3 - i * 3 + 2];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
//重写信息头
|
||||||
|
t_bitmapinfoheader.biHeight = this->bitmapinfoheader.biWidth;
|
||||||
|
t_bitmapinfoheader.biWidth = this->bitmapinfoheader.biHeight;
|
||||||
|
//保存图片
|
||||||
|
this->WriteBMP("rotate270.bmp", t_data, t_bmpfileheader, t_bitmapinfoheader);
|
||||||
|
this->myFree(t_data, t_bitmapinfoheader.biHeight);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
puts("输入的角度不符合要求");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
//求均值方差
|
||||||
|
void Image::Mean_Variance(float &m, float &var)//求图像的均值和方差，利用参数输出
|
||||||
|
{
|
||||||
|
float sum = 0;
|
||||||
|
float ave = 0;
|
||||||
|
float vSum = 0;
|
||||||
|
float vAve = 0;
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biWidth * 3; j++)
|
||||||
|
{
|
||||||
|
sum += this->data[i][j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
ave = sum / (bitmapinfoheader.biHeight*bitmapinfoheader.biWidth * 3);
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biWidth * 3; j++)
|
||||||
|
{
|
||||||
|
vSum += (data[i][j] - ave)*(data[i][j] - ave);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
vAve = vSum / (bitmapinfoheader.biHeight*bitmapinfoheader.biWidth * 3);
|
||||||
|
|
||||||
|
m = ave;
|
||||||
|
var = vAve;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
Image& Image::operator=(Image& val)//重载操作符
|
||||||
|
{
|
||||||
|
this->bitmapinfoheader = val.bitmapinfoheader;
|
||||||
|
this->bmpfileheader = val.bmpfileheader;
|
||||||
|
this->height = val.height;
|
||||||
|
this->width = val.width;
|
||||||
|
// 动态分配二维数组存储像素数据，注意先申请一个存放指针的数组，
|
||||||
|
this->data = (unsigned char **)malloc(sizeof(unsigned char*) * bitmapinfoheader.biHeight);
|
||||||
|
//其大小为sizeof(unsigned char*) * bitmapinfoheader.biHeight，这点很容易错
|
||||||
|
//申请行指针
|
||||||
|
for (int i = 0; i < bitmapinfoheader.biHeight; i++)
|
||||||
|
{
|
||||||
|
//注意3通道，每个像素3个字节
|
||||||
|
this->data[i] = (unsigned char *)malloc(bitmapinfoheader.biWidth * 3);
|
||||||
|
// 读取像素数据
|
||||||
|
for (int j = 0; j < bitmapinfoheader.biWidth * 3; j++)
|
||||||
|
{
|
||||||
|
this->data[i][j] = val.data[i][j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return *this;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
//实现友元函数，交换两个Image对象的数据
|
||||||
|
void Swap(Image &a, Image &b)
|
||||||
|
{
|
||||||
|
Image t(a);
|
||||||
|
a = b;
|
||||||
|
b = t;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,60 @@
|
||||||
|
#ifndef IMAGE_H
|
||||||
|
#define IMAGE_H
|
||||||
|
#include "struct.h"
|
||||||
|
|
||||||
|
class Image
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
//构造函数及其重载
|
||||||
|
Image(){}//创建行列都为零的Image对象
|
||||||
|
Image(int h, int w);//创建h行，w列的Image对象
|
||||||
|
Image(int h, int w, unsigned char val); //创建的图像像素值都为val;
|
||||||
|
Image(const char* ImageName); //利用文件名从硬盘加载图像文件成为Image对象;
|
||||||
|
Image(unsigned char *m, int rows, int cols); //从一维静态数组创建Image对象，图像的行数和列数由后面两个参数给出;
|
||||||
|
Image(unsigned char m[][100], int rows); //从静态二维数组创建Image对象，图像的行数（二维数组的第一个维度）由第二个参数rows给出;
|
||||||
|
Image(unsigned char **m, int h, int w); //从动态数组（二级指针）创建Image对象，图像的行数和列数由后面两个参数给出;
|
||||||
|
Image(Image &im); //拷贝构造函数;
|
||||||
|
~Image(); //析构函数;
|
||||||
|
|
||||||
|
|
||||||
|
void ReadBMP(const char* filename); //从BMP文件中读入图像数据;
|
||||||
|
void WriteBMP(const char* filename); //将图像数据保存为BMP图像文件;
|
||||||
|
void WriteBMP(const char *filename, unsigned char** data);//翻转时写图片
|
||||||
|
void WriteBMP(const char *filename, unsigned char** data,//放缩时写图片
|
||||||
|
BMPFILEHEADER bmpfileheader, BITMAPINFOHEADER bitmapinfoheader);
|
||||||
|
|
||||||
|
|
||||||
|
void ReadText(const char* filename); //从文本文件中读入图像数据;
|
||||||
|
void WriteText(const char* filename); //将图像数据保存为文本文件;
|
||||||
|
|
||||||
|
|
||||||
|
unsigned char& At(int row, int col); //获取第row行第col列的像素点的值;
|
||||||
|
void Set(int row, int col, unsigned char value); //设置像素(row,col)为某值;
|
||||||
|
void Set(unsigned char value); //设置图像所有像素为同一值;
|
||||||
|
|
||||||
|
|
||||||
|
void Flip(int code); //图像的翻转; 根据code的值：0:左右翻转，1:上下翻转;
|
||||||
|
void Resize(int code); //图像的缩放;根据code的值：0:缩小一倍，1:放大一倍;
|
||||||
|
|
||||||
|
|
||||||
|
void Cut(int x1, int y1, int x2, int y2);//裁剪点(x1,y1)到点(x2,y2)的图像
|
||||||
|
|
||||||
|
|
||||||
|
void Rotate(int degree);//图像旋转的函数（简单起见，旋转角度为90度的整数倍）
|
||||||
|
|
||||||
|
|
||||||
|
void Mean_Variance(float &m, float &var);//求图像的均值和方差，利用参数输出
|
||||||
|
|
||||||
|
friend void Swap(Image &a, Image &b);//使用友元函数交换两个Image对象的数据
|
||||||
|
void myFree(unsigned char** data, int h);
|
||||||
|
Image& operator=(Image& val);//重载操作符
|
||||||
|
|
||||||
|
private:
|
||||||
|
unsigned char **data;
|
||||||
|
int height;
|
||||||
|
int width;
|
||||||
|
BMPFILEHEADER bmpfileheader;
|
||||||
|
BITMAPINFOHEADER bitmapinfoheader;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
@ -0,0 +1,75 @@
|
||||||
|
#include "image.h"
|
||||||
|
#include <cstdio>
|
||||||
|
#include <cstdlib>
|
||||||
|
|
||||||
|
int main(int argc, char* argv[])
|
||||||
|
{
|
||||||
|
Image img; //创建对象
|
||||||
|
//读写BMP文件
|
||||||
|
img.ReadBMP("hello.bmp");
|
||||||
|
img.WriteBMP("FruitsCopy.bmp");
|
||||||
|
img.WriteText("FruitsCopy.text");
|
||||||
|
|
||||||
|
|
||||||
|
//读写text文件
|
||||||
|
Image readtxtImage;
|
||||||
|
readtxtImage.ReadText("FruitsCopy.text");
|
||||||
|
readtxtImage.WriteText("writeFruits.text");
|
||||||
|
|
||||||
|
|
||||||
|
//图像的上下翻转，并保存结果图像文件
|
||||||
|
img.Flip(true);
|
||||||
|
//图像的左右翻转,如img.Flip(true);并保存结果图像文件
|
||||||
|
img.Flip(false);
|
||||||
|
//左右翻转需要注意，每个像数占3个字节，翻转时不能简单直接翻转，
|
||||||
|
//而需要每个字节对应地翻转
|
||||||
|
|
||||||
|
|
||||||
|
//图像的缩放，并保存结果图像文件
|
||||||
|
img.Resize(false);//图像缩小
|
||||||
|
img.Resize(true);//图像放大
|
||||||
|
//缩小时也需要注意，每个像数占3个字节，不能简单通过删除字节而缩小，
|
||||||
|
//而需要每个字节对应地删除
|
||||||
|
//放大也是一样的道理
|
||||||
|
|
||||||
|
|
||||||
|
//获取图像的某点的像素值，并修改, 并保存结果图像文件
|
||||||
|
int row = 100;
|
||||||
|
int col = 100;
|
||||||
|
img.At(row, col);
|
||||||
|
img.Set(row, col, 10);
|
||||||
|
img.Set(100);
|
||||||
|
|
||||||
|
|
||||||
|
//使用拷贝构造函数创建新的对象
|
||||||
|
Image new_img(img);
|
||||||
|
new_img.WriteBMP("new_img.bmp");
|
||||||
|
|
||||||
|
|
||||||
|
//截取指定区域内的图像，并保存结果图像文件(x1,y1) (x2,y2)
|
||||||
|
new_img.Cut(120,120,360,360);
|
||||||
|
//需要保证 x2 > x1 && y2 > y1
|
||||||
|
|
||||||
|
|
||||||
|
//顺时针旋转图像并保存结果图像文件（简单起见，旋转角度为90度的整数倍）
|
||||||
|
img.Rotate(90);
|
||||||
|
img.Rotate(180);
|
||||||
|
img.Rotate(270);
|
||||||
|
|
||||||
|
|
||||||
|
//求图像的均值和方差，并在命令行输出
|
||||||
|
float ave = 0;
|
||||||
|
float vAve = 0;
|
||||||
|
img.Mean_Variance(ave, vAve);
|
||||||
|
printf("平均值为：%f\n方差为：%f\n", ave, vAve);
|
||||||
|
|
||||||
|
|
||||||
|
//交换两个图像的数据
|
||||||
|
Image img1("Baboon.bmp");
|
||||||
|
Image img2("Lena.bmp");
|
||||||
|
Swap(img1, img2);
|
||||||
|
//保存交换完的结果图像文件
|
||||||
|
img1.WriteBMP("S_img1_baboon.bmp");
|
||||||
|
img2.WriteBMP("S_img2_lena.bmp");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,35 @@
|
||||||
|
#ifndef STRUCT_H
|
||||||
|
#define STRUCT_H
|
||||||
|
|
||||||
|
// 针对该结构体的字节对齐问题调整对齐策略
|
||||||
|
#pragma pack(push,1)
|
||||||
|
struct BMPFILEHEADER
|
||||||
|
{
|
||||||
|
unsigned short bfType;
|
||||||
|
unsigned int bfSize;
|
||||||
|
unsigned short bfReserved1;
|
||||||
|
unsigned short bfReserved2;
|
||||||
|
unsigned int bfOffBits;
|
||||||
|
};
|
||||||
|
#pragma pack(pop)
|
||||||
|
|
||||||
|
struct BITMAPINFOHEADER
|
||||||
|
{
|
||||||
|
unsigned long biSize; //本结构所占用字节数 40字节
|
||||||
|
long biWidth; //位图的宽度，以像素为单位
|
||||||
|
long biHeight; //位图的高度，以像素为单位
|
||||||
|
unsigned short biPlanes; //目标设备的级别，必须为1
|
||||||
|
unsigned short biBitCount; //每个像素所需的位数，必须是1（双色）、
|
||||||
|
//4（16色）、8（256色）或24（真彩色）之一
|
||||||
|
unsigned long biCompression; //位图压缩类型，必须是 0（BI_RGB不压缩）、
|
||||||
|
//1（BI_RLE8压缩类型）
|
||||||
|
//2（BI_RLE压缩类型）之一
|
||||||
|
unsigned long biSizeImage; //位图的大小，以字节为单位
|
||||||
|
long biXPelsPerMeter; //位图水平分辨率，每米像素数
|
||||||
|
long biYPelsPerMeter; //位图垂直分辨率，每米像素数
|
||||||
|
unsigned long biClrUsed; //位图实际使用的颜色表中的颜色数
|
||||||
|
unsigned long biClrImportant; //位图显示过程中重要的颜色数
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
@ -185,9 +185,9 @@ int main(int argc, char const *argv[]) {
|
||||||
// ½¨˜‹
|
// ½¨˜‹
|
||||||
Imgraw img = {0, 0, 0, NULL};
|
Imgraw img = {0, 0, 0, NULL};
|
||||||
// ×xˆD
|
// ×xˆD
|
||||||
Imgraw_Read(&img, "./input/bw2x3.bmp");
|
Imgraw_Read(&img, "./input/bw2x1.bmp");
|
||||||
// Œ‘ˆD
|
// Œ‘ˆD
|
||||||
Imgraw_Writ(&img, "./output/bw2x3(output).bmp", radio_w, radio_h);
|
Imgraw_Writ(&img, "./output/bw2x1(output).bmp", radio_w, radio_h);
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
/*==============================================================*/
|
/*==============================================================*/
|
||||||
Binary file not shown.
34
try.c
34
try.c
|
|
@ -36,7 +36,7 @@ float linear_single(float x, float x1, float x2, float f1, float f2){
|
||||||
|
|
||||||
// 双线性插值函数
|
// 双线性插值函数
|
||||||
// 参考 https://zh.wikipedia.org/wiki/%E5%8F%8C%E7%BA%BF%E6%80%A7%E6%8F%92%E5%80%BC
|
// 参考 https://zh.wikipedia.org/wiki/%E5%8F%8C%E7%BA%BF%E6%80%A7%E6%8F%92%E5%80%BC
|
||||||
char linear_insert(uch** old_pixels, uint32_t row, uint32_t col, uint32_t old_width, uint32_t old_height, float radio_w, float radio_h){
|
char** linear_insert(uch** old_pixels, uint32_t row, uint32_t col, uint32_t old_width, uint32_t old_height, float radio_w, float radio_h){
|
||||||
float x = row / radio_h;
|
float x = row / radio_h;
|
||||||
float y = col / radio_w;
|
float y = col / radio_w;
|
||||||
// 如果整数格点就直接返回
|
// 如果整数格点就直接返回
|
||||||
|
|
@ -47,7 +47,9 @@ char linear_insert(uch** old_pixels, uint32_t row, uint32_t col, uint32_t old_wi
|
||||||
if (x2 >= old_height){x2 = x1;}
|
if (x2 >= old_height){x2 = x1;}
|
||||||
|
|
||||||
if (y2 >= old_width){y2 = y1;}
|
if (y2 >= old_width){y2 = y1;}
|
||||||
if (x1 == x2 && y1 == y2){return old_pixels[x1][y1];}
|
if (x1 == x2 && y1 == y2){
|
||||||
|
uint32_t idx = x1*old_width+y1;
|
||||||
|
return old_pixels[x1][idx + 0], old_pixels[x1][idx + 1], old_pixels[x1][idx + 2];}
|
||||||
if (x1 == x2){
|
if (x1 == x2){
|
||||||
int x = x1;
|
int x = x1;
|
||||||
uint32_t idx1 = x*old_width+y;
|
uint32_t idx1 = x*old_width+y;
|
||||||
|
|
@ -156,7 +158,7 @@ void bmpWrite(const char* name, const uch* raw_img, uint32_t width, uint32_t hei
|
||||||
for(unsigned i = 0; i < new_width; ++i) {
|
for(unsigned i = 0; i < new_width; ++i) {
|
||||||
uint32_t idx = j*new_width +i;
|
uint32_t idx = j*new_width +i;
|
||||||
if(bits == 24) { // RGB圖片
|
if(bits == 24) { // RGB圖片
|
||||||
char* r, g, b = linear_insert(&raw_img, j, i, width, height, radio_w, radio_h);
|
char** r, g, b = linear_insert(&(raw_img), j, i, width, height, radio_w, radio_h);
|
||||||
fwrite(b, sizeof(char), sizeof(uch), pFile);
|
fwrite(b, sizeof(char), sizeof(uch), pFile);
|
||||||
fwrite(g, sizeof(char), sizeof(uch), pFile);
|
fwrite(g, sizeof(char), sizeof(uch), pFile);
|
||||||
fwrite(r, sizeof(char), sizeof(uch), pFile);
|
fwrite(r, sizeof(char), sizeof(uch), pFile);
|
||||||
|
|
@ -198,7 +200,7 @@ void bmpRead(const char* name, uch** oldpixels, uint32_t* width, uint32_t* heigh
|
||||||
*width = info_h.biWidth;
|
*width = info_h.biWidth;
|
||||||
*height = info_h.biHeight;
|
*height = info_h.biHeight;
|
||||||
*bits = info_h.biBitCount;
|
*bits = info_h.biBitCount;
|
||||||
unsigned char **oldpixels=(unsigned char**)malloc((*width)*(*height)*3);
|
**oldpixels=(unsigned char**)malloc((*width)*(*height)*3);
|
||||||
|
|
||||||
// size_t ImgSize = ((size_t)*width) * ((size_t)*height) * 3;
|
// size_t ImgSize = ((size_t)*width) * ((size_t)*height) * 3;
|
||||||
// *raw_img = (uch*)calloc(ImgSize, sizeof(uch));
|
// *raw_img = (uch*)calloc(ImgSize, sizeof(uch));
|
||||||
|
|
@ -243,17 +245,17 @@ void bmpRead(const char* name, uch** oldpixels, uint32_t* width, uint32_t* heigh
|
||||||
// fclose(pFile);
|
// fclose(pFile);
|
||||||
//----------------------------------------------------------------------------
|
//----------------------------------------------------------------------------
|
||||||
|
|
||||||
// for(int j = *height-1; j >= 0; --j) {
|
for(int j = *height-1; j >= 0; --j) {
|
||||||
// for(unsigned i = 0; i < *width; ++i) {
|
for(unsigned i = 0; i < *width; ++i) {
|
||||||
// uint32_t idx = j*(*width)+i;
|
uint32_t idx = j*(*width)+i;
|
||||||
// for(int k = 0; k < 3; k++){
|
for(int k = 0; k < 3; k++){
|
||||||
// printf((char*)&(*raw_img)[idx*3 + k]);
|
printf((char*)&(*oldpixels)[idx*3 + k]);
|
||||||
// printf("\t");
|
printf("\t");
|
||||||
// }
|
}
|
||||||
// printf("\t done \t");
|
printf("\t done \t");
|
||||||
// }
|
}
|
||||||
// printf("\n");
|
printf("\n");
|
||||||
// }
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
// 圖像結構
|
// 圖像結構
|
||||||
|
|
@ -278,7 +280,7 @@ int main(int argc, char const *argv[]) {
|
||||||
scanf("%f", &radio_w);
|
scanf("%f", &radio_w);
|
||||||
printf("Enter a radio of height :") ;
|
printf("Enter a radio of height :") ;
|
||||||
scanf("%f", &radio_h);
|
scanf("%f", &radio_h);
|
||||||
printf("%f :: %f\n", radio_w, radio_h);
|
printf("\n");
|
||||||
// 建構
|
// 建構
|
||||||
Imgraw img = {0, 0, 0, NULL};
|
Imgraw img = {0, 0, 0, NULL};
|
||||||
// 讀圖
|
// 讀圖
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue