bool CTiffWriter::writeImageHeader()
{
// create the out stream if not done so already
if(0 == m_pImageStream)
{
m_pImageStream = new ofstream();
}
// open the stream. If already open, reset it
if(m_pImageStream->is_open())
{
m_pImageStream->seekp(0);
}
else
{
m_pImageStream->open(m_filename.c_str(), ios_base::out|ios_base::binary|ios_base::trunc);
}
stringstream Header;
GetImageHeader(Header);
Header.seekp(0, ios_base::end);
m_nOffset =(int) Header.tellp();
Header.seekg(0, ios_base::beg);
char *pData = new char[m_nOffset];
Header.read(pData,m_nOffset);
m_pImageStream->write(pData,m_nOffset);
delete []pData;
return true;
}
BOOL CHistogram::ValidHeader(ImgHeader h1)
{
ImgHeader h2 = GetImageHeader(m_numChannels);
if (h1.type != h2.type ) return FALSE;
if (h1.channels != h2.channels ) return FALSE;
if (h1.width != h2.width ) return FALSE;
if (h1.height != h2.height ) return FALSE;
if (h1.plane != h2.plane ) return FALSE;
return TRUE;
}