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我有從我的手機拍攝的圖像的原始數據,它的分辨率是480 * 800,格式是RGBA。然後我想用wxImage函數將它保存到一個jpeg圖像中。鱈魚列表如下:如何用wxImage保存圖像?
wxFile m_bufferfile = wxFile(wxT("out.raw"));
if(!m_bufferfile->IsOpened())
{
wxLogMessage(_T("Fail to open the config file."));
}
m_count = m_bufferfile->Length();
unsigned char* rawdata = new unsigned char[m_count];
for(unsigned int i = 0; i < m_count; i=i+4)
{
m_bufferfile->Seek(1,wxFromCurrent);
m_bufferfile->Read(rawdata, 3);
}
wxImage *image = new wxImage(480, 800, rawdata, false);
image->SaveFile(wxT("raw.jpg"),wxBITMAP_TYPE_JPEG);
當我打開raw.jpg,它變成黑色。 有問題嗎?