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February 2010
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2010.02.18 15:59 "Re: OT: Visual C++ runtimes (was: Using libtiff in Visual C++ 6.0)", by Edward Lam2010.02.16 15:45 "Re: Using libtiff in Visual C++ 6.0", by Weichao Wang
> > I've implemented reading, writing and dithering tiff in Visual C++ 6.0 > > for gray scale tiff image, but (unfortunately!!!) only for uncompressed > > tiff files (and not for tiled files), since I don't know the various > > (un)compression processes. Now I'd like to make use of libtiff to enable > > the programm to process compressed files. Is there a step by step guide > > on how to use libtiff in VC++6? Many thanks! > > Is your problem using libtiff or building it with compression support? > > Reading compressed files is transparent for many formats as long as > support for the compression format was built into your version of > libtiff. Some compression formats require other libraries (eg. libz, > libjpeg). > > Writing compressed files can be as simple as setting a tag once you've > created your file but before you start writing data to it: > > TIFFSetField( tiff, TIFFTAG_COMPRESSION, COMPRESSION_LZW ); > > or for deflate compression (which requires libz): > TIFFSetField( tiff, TIFFTAG_COMPRESSION, COMPRESSION_ADOBE_DEFLATE ); > > there many others as well, some of which have particular requirements on > how the data is provided and decoded. > > Olivier I've downloaded libtiff 3.8.2 and installed it in my computer. In the folder C:\Programme\GnuWin32\bin there are 6 .dll files along with many .exe files. So I suppose I needn't to build libtiff myself, am I right? My question is now what I should do (what should I include or import or what so ever into my Visual C++ project) so that I can use functions such as TIFFReadEncodedStrip(...) as if I had implemented them in my project as is shown in Michael Still's (UNIX) example. Weichao _________________________________________________________________ Hotmail: Trusted email with Microsoft’s powerful SPAM protection. https://signup.live.com/signup.aspx?id=60969