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Improved saving of TIFF monochrome images.

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When reducing an RGB image to black and white any non-black pixel was treated as white resulting in mostly white images. Set the threshold to 127 instead to improve the looks of saved monochrome TIFF images.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68777 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Dimitri Schoolwerth 2011-08-19 01:08:36 +00:00
parent 7ffc9affb4
commit 7a10e465ca
1 changed files with 1 additions and 1 deletions
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2
src/common/imagtiff.cpp
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@ -658,7 +658,7 @@ bool wxTIFFHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo
uint8 reverse = 0;
for ( int bp = 0; bp < 8; bp++ )
{
if ( ptr[column*24 + bp*3] > 0 )
if ( ptr[column*24 + bp*3] > 127 )
{
// check only red as this is sufficient
reverse = (uint8)(reverse | 128 >> bp);