?? lprhelper.cpp
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/*
* Copyright (c) 2003, try2it.com
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place - Suite 330, Boston, MA 02111-1307, USA.
*
* 文件名稱：LPRHelper.cpp
* 文件標識：LPR-02-03
* 摘要：牌照識別的內部助手函數
*
* 當前版本：1.0
* 作者：try2it.com
* 開始日期：2003年09月27日
* 完成日期：2003年09月30日
*/
#include "stdafx.h"
#include <malloc.h>
#include <stdlib.h>
#include "../include/types.h"
#include "LPRHelper.h"
/*------------------------------------------------------------------
* 以下聲明全局變量
------------------------------------------------------------------*/
PMemNode g_pMemHead = NULL;
PMemNode g_pMemTail = NULL;
int g_nMemCount = 0;
int LoadImgToArray(PColorImg pColorImg, BYTE *pImgBuff)
{
BYTE *pData, *pColor;
BYTE Y, Red, Blue, Green;
BITMAPINFOHEADER Bi;
RGBQUAD MyRGB;
int res = 0;
int i, j;
WORD wLineBytes;
memcpy(&Bi, pImgBuff, sizeof(BITMAPINFOHEADER));
if ((res = ColorImg_Malloc(pColorImg, Bi.biWidth, Bi.biHeight))==0)
{
return 0;
}
pColorImg->BitCount = Bi.biBitCount;
wLineBytes = (int)((Bi.biWidth * Bi.biBitCount + 31) / 32) * 4;
Bi.biSizeImage = wLineBytes * Bi.biHeight;
switch (Bi.biBitCount)
{
case 24:
for (i=0; i<Bi.biHeight; i++)
{
pData = pImgBuff + sizeof(BITMAPINFOHEADER) +
Bi.biClrUsed * sizeof(RGBQUAD) +
(Bi.biSizeImage - (WORD)(i + 1) * wLineBytes);
for (j=0; j<Bi.biWidth; j++)
{
Blue = (BYTE)(*pData++);
Green = (BYTE)(*pData++);
Red = (BYTE)(*pData++);
Y = (int)(0.299 * Red + 0.587 * Green+ 0.114 * Blue + 0.5);
*(pColorImg->pBImg+i*Bi.biWidth+j) = Blue;
*(pColorImg->pGImg+i*Bi.biWidth+j) = Green;
*(pColorImg->pRImg+i*Bi.biWidth+j) = Red;
*(pColorImg->pYImg+i*Bi.biWidth+j) = Y;
}
}
break;
case 16:
break;
case 8:
for (i=0; i<Bi.biHeight; i++)
{
pColor = pImgBuff + sizeof(BITMAPINFOHEADER);
pData = pImgBuff + sizeof(BITMAPINFOHEADER) +
Bi.biClrUsed * sizeof(RGBQUAD) +
(Bi.biSizeImage - (WORD)(i + 1) * wLineBytes);
for (j=0; j<Bi.biWidth; j++)
{
Y = *pData++;
memcpy(&MyRGB, pColor + Y * sizeof(RGBQUAD), sizeof(RGBQUAD));
Blue = MyRGB.rgbBlue;
Green = MyRGB.rgbGreen;
Red = MyRGB.rgbRed;
Y = (int)(0.299 * Red + 0.587 * Green+ 0.114 * Blue + 0.5);
*(pColorImg->pBImg+i*Bi.biWidth+j) = Blue;
*(pColorImg->pGImg+i*Bi.biWidth+j) = Green;
*(pColorImg->pRImg+i*Bi.biWidth+j) = Red;
*(pColorImg->pYImg+i*Bi.biWidth+j) = Y;
}
}
break;
case 4:
for (i=0; i<Bi.biHeight; i++)
{
pColor = pImgBuff + sizeof(BITMAPINFOHEADER);
pData = pImgBuff + sizeof(BITMAPINFOHEADER) +
Bi.biClrUsed * sizeof(RGBQUAD) +
(Bi.biSizeImage - (WORD)(i + 1) * wLineBytes);
for (j=0; j<Bi.biWidth; j++)
{
if ((j != 0) && (j % 2 == 0))
pData++;
Y = (BYTE)(*pData);
Y = (BYTE)(Y >> (4 * ((j + 1) % 2)) & (BYTE)15);
memcpy(&MyRGB, pColor + Y * sizeof(RGBQUAD), sizeof(RGBQUAD));
Blue = MyRGB.rgbBlue;
Green = MyRGB.rgbGreen;
Red = MyRGB.rgbRed;
Y = (int)(0.299 * Red + 0.587 * Green+ 0.114 * Blue + 0.5);
*(pColorImg->pBImg+i*Bi.biWidth+j) = Blue;
*(pColorImg->pGImg+i*Bi.biWidth+j) = Green;
*(pColorImg->pRImg+i*Bi.biWidth+j) = Red;
*(pColorImg->pYImg+i*Bi.biWidth+j) = Y;
}
}
break;
case 1:
for (i=0; i<Bi.biHeight; i++)
{
pColor = pImgBuff + sizeof(BITMAPINFOHEADER);
pData = pImgBuff + sizeof(BITMAPINFOHEADER) +
Bi.biClrUsed * sizeof(RGBQUAD) +
(Bi.biSizeImage - (WORD)(i + 1) * wLineBytes);
for (j=0; j<Bi.biWidth; j++)
{
if ((j != 0) && (j % 8 == 0))
pData++;
Y = (BYTE)(*pData);
Y = BYTE(Y >> (7 - j % 8) & (BYTE)1);
memcpy(&MyRGB, pColor + Y * sizeof(RGBQUAD), sizeof(RGBQUAD));
Blue = MyRGB.rgbBlue;
Green = MyRGB.rgbGreen;
Red = MyRGB.rgbRed;
Y = (int)(0.299 * Red + 0.587 * Green+ 0.114 * Blue + 0.5);
*(pColorImg->pBImg+i*Bi.biWidth+j) = Blue;
*(pColorImg->pGImg+i*Bi.biWidth+j) = Green;
*(pColorImg->pRImg+i*Bi.biWidth+j) = Red;
*(pColorImg->pYImg+i*Bi.biWidth+j) = Y;
}
}
break;
}
return res;
}
int ColorImg_Malloc(PColorImg pColorImg, int Width, int Height)
{
if (pColorImg == NULL)
return 0;
if (Width == 0 || Height == 0)
return 0;
pColorImg->pYImg = (BYTE*)malloc(Width * Height);
if (pColorImg->pYImg == NULL)
return 0;
pColorImg->pRImg = (BYTE*)malloc(Width * Height);
if (pColorImg->pRImg == NULL)
{
free(pColorImg->pYImg);
return 0;
}
pColorImg->pBImg = (BYTE*)malloc(Width * Height);
if (pColorImg->pBImg == NULL)
{
free(pColorImg->pYImg);
free(pColorImg->pRImg);
return 0;
}
pColorImg->pGImg = (BYTE*)malloc(Width * Height);
if (pColorImg->pGImg == NULL)
{
free(pColorImg->pYImg);
free(pColorImg->pRImg);
free(pColorImg->pBImg);
return 0;
}
if (_InsertMemNode(pColorImg->pYImg) == 0)
return 0;
if (_InsertMemNode(pColorImg->pRImg) == 0)
return 0;
if (_InsertMemNode(pColorImg->pGImg) == 0)
return 0;
if (_InsertMemNode(pColorImg->pBImg) == 0)
return 0;
pColorImg->Width = Width;
pColorImg->Height = Height;
return 1;
}
int GrayImg_Malloc(PGrayImg pGrayImg, int Width, int Height)
{
if (pGrayImg == NULL)
return 0;
if (Width == 0 || Height == 0)
return 0;
pGrayImg->pImg = (BYTE*)malloc(Width * Height);
if (pGrayImg->pImg == NULL)
return 0;
if (_InsertMemNode(pGrayImg->pImg) == 0)
return 0;
pGrayImg->Width = Width;
pGrayImg->Height = Height;
return 1;
}
int ColorImg_Free(PColorImg pColorImg)
{
int res = 0;
if (pColorImg == NULL)
return 1;
if (pColorImg->pYImg != NULL)
{
res = _FreeMemNode(pColorImg->pYImg);
}
if (pColorImg->pRImg != NULL)
{
res = _FreeMemNode(pColorImg->pRImg);
}
if (pColorImg->pGImg != NULL)
{
res = _FreeMemNode(pColorImg->pGImg);
}
if (pColorImg->pBImg != NULL)
{
res = _FreeMemNode(pColorImg->pBImg);
}
return res;
}
int GrayImg_Free(PGrayImg pGrayImg)
{
int res = 0;
if (pGrayImg == NULL)
return 1;
if (pGrayImg->pImg != NULL)
{
res = _FreeMemNode(pGrayImg->pImg);
}
return res;
}
int _InsertMemNode(BYTE *pMem)
{
PMemNode pMemNode = NULL;
pMemNode = (PMemNode)malloc(sizeof(MemNode));
if (pMemNode == NULL)
{
return 0;
}
pMemNode->pMem = pMem;
pMemNode->next = NULL;
pMemNode->prev = NULL;
if (g_pMemHead == NULL && g_pMemTail == NULL)
{
g_pMemHead = (PMemNode)malloc(sizeof(MemNode));
g_pMemTail = (PMemNode)malloc(sizeof(MemNode));
g_pMemHead->next = g_pMemTail;
g_pMemHead->prev = NULL;
g_pMemHead->pMem = NULL;
g_pMemTail->next = NULL;
g_pMemTail->prev = g_pMemHead;
g_pMemTail->pMem = NULL;
}
pMemNode->next = g_pMemTail;
pMemNode->prev = g_pMemTail->prev;
g_pMemTail->prev->next = pMemNode;
g_pMemTail->prev = pMemNode;
g_nMemCount++;
return 1;
}
int _FreeMemNode(BYTE *pMem)
{
PMemNode p;
p = g_pMemTail->prev;
while (p != g_pMemHead)
{
if (p->pMem == pMem)
{
p->prev->next = p->next;
p->next->prev = p->prev;
free(p);
p = NULL;
break;
}
p = p->prev;
}
if (pMem != NULL)
{
free(pMem);
pMem = NULL;
}
g_nMemCount--;
return 1;
}
int FreeAllMemNode()
{
PMemNode p, q;
if (g_pMemTail==NULL || g_pMemHead==NULL)
return 1;
p = g_pMemTail->prev;
while (p != g_pMemHead)
{
if (p->pMem)
{
free(p->pMem);
p->pMem = NULL;
}
q = p;
p = p->prev;
free(q);
q = NULL;
g_nMemCount--;
}
if (g_pMemTail != NULL)
{
free(g_pMemTail);
g_pMemTail = NULL;
}
if (g_pMemHead != NULL)
{
free(g_pMemHead);
g_pMemHead = NULL;
}
return 1;
}
int ShowImg(HDC hdc, PColorImg pColorImg)
{
BITMAPINFOHEADER Bi;
BYTE *pImgBuff = NULL;
BYTE *pData = NULL;
WORD wLineBytes;
int i, j;
BOOL bSuccess;
RECT rect;
Bi.biSize = sizeof(BITMAPINFOHEADER);
Bi.biWidth = pColorImg->Width;
Bi.biHeight = pColorImg->Height;
Bi.biPlanes = 1;
Bi.biBitCount = 24;
Bi.biCompression = 0;
Bi.biClrUsed = 0;
Bi.biClrImportant = 0;
wLineBytes = (int)((Bi.biWidth * Bi.biBitCount+31) / 32) * 4;
Bi.biSizeImage = wLineBytes*Bi.biHeight;
pImgBuff = (BYTE*)malloc(Bi.biSizeImage + sizeof(BITMAPINFOHEADER));
pData = pImgBuff;
memcpy(pData, &Bi, sizeof(BITMAPINFOHEADER));
for (i=0; i<pColorImg->Height-1; i++)
{
pData = pImgBuff + sizeof(BITMAPINFOHEADER) +
(Bi.biSizeImage - (WORD)(1 + i) * wLineBytes);
for (j=0; j<pColorImg->Width-1; j++)
{
*pData++ = *(pColorImg->pBImg + i * pColorImg->Width + j);
*pData++ = *(pColorImg->pGImg + i * pColorImg->Width + j);
*pData++ = *(pColorImg->pRImg + i * pColorImg->Width + j);
}
}
pData = pImgBuff + sizeof(BITMAPINFOHEADER);
rect.left = 0;
rect.top = 0;
rect.right = 200;
rect.bottom = 400;
FillRect(hdc, &rect, (HBRUSH) (COLOR_WINDOW));
bSuccess = SetDIBitsToDevice(hdc, // HDC
0, // DestX
0, // DestY
pColorImg->Width, // DestWidth
pColorImg->Height, // DestHeight
0, // SrcX
0, // SrcY
0, // StartScan
pColorImg->Height, // NumScans
pData, // Bits
(LPBITMAPINFO)pImgBuff, // BitsInfo
DIB_RGB_COLORS); // wUsage
if (pImgBuff)
free(pImgBuff);
return (int)bSuccess;
}
TGrayImg ColorToGray(TColorImg ColorImg)
{
TGrayImg GrayImg;
GrayImg.Width = ColorImg.Width;
GrayImg.Height = ColorImg.Height;
GrayImg.pImg = ColorImg.pYImg;
return GrayImg;
}
TColorImg GrayToColor(TGrayImg GrayImg)
{
TColorImg ColorImg;
ColorImg.Width = GrayImg.Width;
ColorImg.Height = GrayImg.Height;
ColorImg.pYImg = GrayImg.pImg;
ColorImg.pRImg = GrayImg.pImg;
ColorImg.pGImg = GrayImg.pImg;
ColorImg.pBImg = GrayImg.pImg;
return ColorImg;
}
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