本文整理汇总了C++中wxImage::ConvertToGreyscale方法的典型用法代码示例。如果您正苦于以下问题:C++ wxImage::ConvertToGreyscale方法的具体用法?C++ wxImage::ConvertToGreyscale怎么用?C++ wxImage::ConvertToGreyscale使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类wxImage
的用法示例。
在下文中一共展示了wxImage::ConvertToGreyscale方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: wxBitmap
bool BM2CMP_FRAME::OpenProjectFiles( const std::vector<wxString>& aFileSet, int aCtl )
{
// Prj().MaybeLoadProjectSettings();
m_BitmapFileName = aFileSet[0];
if( !m_Pict_Image.LoadFile( m_BitmapFileName ) )
{
// LoadFile has its own UI, no need for further failure notification here
return false;
}
m_Pict_Bitmap = wxBitmap( m_Pict_Image );
int h = m_Pict_Bitmap.GetHeight();
int w = m_Pict_Bitmap.GetWidth();
// Determine image resolution in DPI (does not existing in all formats).
// the resolution can be given in bit per inches or bit per cm in file
m_imageDPI.x = m_Pict_Image.GetOptionInt( wxIMAGE_OPTION_RESOLUTIONX );
m_imageDPI.y = m_Pict_Image.GetOptionInt( wxIMAGE_OPTION_RESOLUTIONY );
if( m_imageDPI.x > 1 && m_imageDPI.y > 1 )
{
if( m_Pict_Image.GetOptionInt( wxIMAGE_OPTION_RESOLUTIONUNIT ) == wxIMAGE_RESOLUTION_CM )
{
// When the initial resolution is given in bits per cm,
// experience shows adding 1.27 to the resolution converted in dpi
// before convert to int value reduce the conversion error
// but it is not perfect
m_imageDPI.x = m_imageDPI.x * 2.54 + 1.27;
m_imageDPI.y = m_imageDPI.y * 2.54 + 1.27;
}
}
else // fallback to the default value
m_imageDPI.x = m_imageDPI.y = DEFAULT_DPI;
// Display image info:
// We are using ChangeValue here to avoid generating a wxEVT_TEXT event.
m_DPIValueX->ChangeValue( wxString::Format( wxT( "%d" ), m_imageDPI.x ) );
m_DPIValueY->ChangeValue( wxString::Format( wxT( "%d" ), m_imageDPI.y ) );
updateImageInfo();
m_InitialPicturePanel->SetVirtualSize( w, h );
m_GreyscalePicturePanel->SetVirtualSize( w, h );
m_BNPicturePanel->SetVirtualSize( w, h );
m_Greyscale_Image.Destroy();
m_Greyscale_Image = m_Pict_Image.ConvertToGreyscale( );
if( m_rbOptions->GetSelection() > 0 )
NegateGreyscaleImage( );
m_Greyscale_Bitmap = wxBitmap( m_Greyscale_Image );
m_NB_Image = m_Greyscale_Image;
Binarize( (double) m_sliderThreshold->GetValue()/m_sliderThreshold->GetMax() );
return true;
}
示例2: wxCreateGreyedImage
bool wxCreateGreyedImage(const wxImage& in, wxImage& out)
{
#if wxUSE_IMAGE
out = in.ConvertToGreyscale();
if ( out.IsOk() )
return true;
#endif // wxUSE_IMAGE
return false;
}