[Function] IplImage 에 한글text 삽입하기

//========= header 에 추가 =========================

void setPutText( IplImage* src_image, IplImage* dst_image, char* text, CvPoint textPos, CvScalar color);

HBITMAP setTextToBitmap( char* text, CvScalar color);

IplImage* setBitmapToIplImage( HBITMAP hBitmap );

//========== 소스코드 ===============================

void CbrailleDlg::setPutText(IplImage* src_image, IplImage* dst_image, char* text, CvPoint textPos, CvScalar color)

{

// 명암도 영상에 대한 처리는 안함 칼라만 처리 일단..

if( src_image->nChannels != 1 )

cvCopy( src_image, dst_image );

int width = src_image->width;

int height = src_image->height;

if( (textPos.y > src_image->height) || (textPos.x > src_image->width) )

{

cvCopy( src_image, dst_image );

}

CvScalar var = {0,0,0,0};

HBITMAP hBitmap = setTextToBitmap(text, color);

IplImage* text_image = setBitmapToIplImage( hBitmap );

for( int nRow = textPos.y; nRow<(textPos.y + text_image->height); nRow++)

{

for( int nCol = textPos.x; nCol<(textPos.x + text_image->width); nCol++)

{

if( nRow >= height || nCol >= width) continue;

var = cvGet2D(text_image, nRow-textPos.y, nCol-textPos.x);

if( var.val[0] == color.val[0] && var.val[1] == color.val[1] && var.val[2] == color.val[2] )

cvSet2D(dst_image, nRow, nCol, var);

}

}

free(text_image->imageData);

cvReleaseImage( &text_image );

DeleteObject( hBitmap );

}

HBITMAP CbrailleDlg::setTextToBitmap( char* text, CvScalar color)

{

int textLength = (int)strlen(text);

if( textLength <= 0 ) return NULL;

HDC hTextDC = CreateCompatibleDC(NULL);

HFONT hOldFont = (HFONT)SelectObject( hTextDC, (HFONT)GetStockObject(SYSTEM_FONT) );

HBITMAP hDstBMP = NULL;

RECT textArea = {0, 0, 0, 0};

DrawText(hTextDC, (LPCTSTR)text, textLength, &textArea, DT_CALCRECT);

if( (textArea.right > textArea.left) && (textArea.bottom > textArea.top) )

{

BITMAPINFOHEADER bitmapInfoHeader;

memset( &bitmapInfoHeader, 0x0, sizeof(BITMAPINFOHEADER) );

void* lpvBits = NULL;

bitmapInfoHeader.biSize = sizeof(bitmapInfoHeader);

bitmapInfoHeader.biWidth = textArea.right-textArea.left;

bitmapInfoHeader.biHeight = textArea.bottom-textArea.top;

bitmapInfoHeader.biPlanes = 1;

bitmapInfoHeader.biBitCount = 32;

bitmapInfoHeader.biCompression = BI_RGB;

hDstBMP = CreateDIBSection( hTextDC, (LPBITMAPINFO)&bitmapInfoHeader, 0, (LPVOID*)&lpvBits, NULL, 0 );

HBITMAP hOldBMP = (HBITMAP)SelectObject( hTextDC, hDstBMP );

if( hOldBMP != NULL)

{

int TEXT_RED = (int)color.val[2];

int TEXT_GREEN = (int)color.val[1];

int TEXT_BLUE = (int)color.val[0];

SetTextColor( hTextDC, RGB(TEXT_RED, TEXT_GREEN, TEXT_BLUE) ); //text color

SetBkColor( hTextDC, 0x00EFFEFF ); //Background color

SetBkMode( hTextDC, OPAQUE ); // 투명

DrawText( hTextDC, (LPCTSTR)text, textLength, &textArea, DT_NOCLIP);

}

::SelectObject( hTextDC, hOldBMP );

}

::SelectObject( hTextDC, hOldFont );

if( hTextDC) { ::DeleteDC( hTextDC ); }

if( hOldFont) { ::DeleteObject( hOldFont ); }

return hDstBMP;

}

IplImage* CbrailleDlg::setBitmapToIplImage( HBITMAP hBitmap )

{

BITMAP bitmap;

GetObject( hBitmap, sizeof( BITMAP ), (LPSTR)&bitmap );

int nChannels = (bitmap.bmBitsPixel == 1)? 1: bitmap.bmBitsPixel*0.125;

int depth = (bitmap.bmBitsPixel == 1)? IPL_DEPTH_1U : IPL_DEPTH_8U;

IplImage* mImage = cvCreateImageHeader( cvSize(bitmap.bmWidth, bitmap.bmHeight), depth, nChannels );

mImage->imageData = (char*)malloc(bitmap.bmHeight * bitmap.bmWidth * nChannels * sizeof(char) );

memcpy(mImage->imageData, (char*)(bitmap.bmBits), bitmap.bmHeight * bitmap.bmWidth * nChannels );

cvFlip( mImage, mImage, 0 );

return mImage;

}

//================사용 예 ==========================

CString str;

str.Format( _T("한글") );

setPutText( &IplImage(m_Image), &IplImage(m_Image), (LPSTR)(LPCTSTR)str, cvPoint(10,10), CV_RGB(255,255,100) );