【c++】点阵字库提取汉字转位图

来源：互联网发布：老男孩 python 编辑：程序博客网时间：2024/05/18 03:21

帮同学做的，由于时间仓促，从网上找来一些代码，拼拼凑凑出来这样一个结果。

实现的主要功能是从点阵字库（.FONT）中提取某个汉字或者提取某段汉字另外为图片

矢量字库通过一些软件可转为点阵字库

#include <stdio.h> #include <stdlib.h>#include <string.h>#include <pshpack2.h>#include <iostream>#define size 32#define sum (size*size/8)void convert(unsigned char qh,unsigned char wh);void Snapshot( BYTE * pData, int width, int height,  char * filename );typedef long LONG;typedef unsigned char BYTE;typedef unsigned long DWORD;typedef unsigned short WORD;typedef struct {WORD    bfType;DWORD   bfSize;WORD    bfReserved1;WORD    bfReserved2;DWORD   bfOffBits;} BMPFILEHEADER_T;struct BMPFILEHEADER_S{WORD    bfType;DWORD   bfSize;WORD    bfReserved1;WORD    bfReserved2;DWORD   bfOffBits;};typedef struct{DWORD      biSize;LONG       biWidth;LONG       biHeight;WORD       biPlanes;WORD       biBitCount;DWORD      biCompression;DWORD      biSizeImage;LONG       biXPelsPerMeter;LONG       biYPelsPerMeter;DWORD      biClrUsed;DWORD      biClrImportant;} BMPINFOHEADER_T;int main(){//提取某段汉字for (unsigned char i=16;i<=16;i++){for (unsigned char j=1;j<=3;j++){convert(i,j);}}//提取某个汉字unsigned char incode[3] = "我";unsigned char qh = incode[0] - 0xa0; //获得区码  unsigned char wh = incode[1] - 0xa0; //获得位码convert(qh,wh);return 0;}void convert(unsigned char qh,unsigned char wh) {    unsigned long offset = 0;unsigned char mat[sum][size/8] = {0} ; //mat[sum][2]struct {BYTE b;BYTE g;BYTE r;} pRGB[size][size];  // 定义位图数据memset( pRGB, 0, sizeof(pRGB) ); // 设置背景为黑色char  hz[64];FILE* HZK = NULL;sprintf(hz , "HZK%d" , size);HZK = fopen(hz , "rb");offset = (94*(qh-1)+(wh-1))*sum; //得到偏移位置if( HZK == NULL)  //fail to open file{  printf("Can't Open hzk%d\n" , size);  getchar(); return ; }fseek(HZK, offset, SEEK_SET); fread(mat, sum , 1, HZK);fclose(HZK); int col=0;int row=0;//显示 for(int i=0; i<size; i++) //16{ for(int j=0; j<size/8; j++) //2{ for(int k=0; k<8 ; k++) //8bits , 1 byte{ if( mat[i][j] & (0x80>>k)){//测试为1的位则显示 //汉字颜色//printf("1");pRGB[size-1-row][col-size*row].r = 0xff;//bmp中的行坐标倒序pRGB[size-1-row][col-size*row].g = 0xff;pRGB[size-1-row][col-size*row].b = 0xff;} else {//背景色//printf("0");pRGB[size-1-row][col-size*row].r = 0x00;//bmp中的行坐标倒序pRGB[size-1-row][col-size*row].g = 0x00;pRGB[size-1-row][col-size*row].b = 0x00;} col++;}//for}//for//printf("\n"); row++;}//forchar filename[9];sprintf(filename,"%2d%2d.bmp",qh,wh);if (wh<10)filename[2]='0';if (qh<10)filename[0]='0';Snapshot( ( BYTE*)pRGB, size, size, filename);}void Snapshot( BYTE * pData, int width, int height,  char * filename ){int bmpsize = width*height*3; // 每个像素点3个字节// 位图第一部分，文件信息BMPFILEHEADER_T bfh;bfh.bfType = 0x4d42;  //bmbfh.bfSize = bmpsize  // data size+ sizeof( BMPFILEHEADER_T ) // first section size+ sizeof( BMPINFOHEADER_T ) // second section size;bfh.bfReserved1 = 1; // reserved bfh.bfReserved2 = 0; // reservedbfh.bfOffBits = bfh.bfSize - bmpsize;// 位图第二部分，数据信息BMPINFOHEADER_T bih;bih.biSize = sizeof(BMPINFOHEADER_T);bih.biWidth = width;bih.biHeight = height;bih.biPlanes = 1;bih.biBitCount = 24;bih.biCompression = 0;bih.biSizeImage = bmpsize;bih.biXPelsPerMeter = 0;bih.biYPelsPerMeter = 0;bih.biClrUsed = 0;bih.biClrImportant = 0;       FILE * fp = fopen(filename,"wb");if( !fp ) return;fwrite( &bfh, 1, sizeof(BMPFILEHEADER_T), fp );fwrite( &bih, 1, sizeof(BMPINFOHEADER_T), fp );fwrite( pData, 1, bmpsize, fp );fclose( fp );}

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