怎样修改 tif 图像分辨率？

冬天-来了 2014-09-01 05:23:40

程序中生成了400dpi 的bmp图像，通过CImage类的Save函数转换图像格式为 tif 后，分辨率就变成 96 dpi了，不知道为什么，怎样把 tif图像分辨率转换为 400呢？？

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冬天-来了 2014-09-02

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引用 2 楼 robertbo 的回复:

在save之前使用 SetXDPI(400); SetYDPI(400); 就可以了

没有那个成员函数啊？用不了

阿呆_ 2014-09-02

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你可以下载win32版本的tiff库进行安装或者下载源代码然后手工将其中的.c/.cpp加入你的工程一起编译（也许需要手工设置一些MACRO, 看.h中设置咯)

冬天-来了 2014-09-02

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我的是 Visual Studio2008,XP系统，莫非不能用libtiff ?

阿呆_ 2014-09-02

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Building the Software under Windows 95/98/NT/2000 with MS VC++ With Microsoft Visual C++ installed, and properly configured for commandline use (you will likely need to source VCVARS32.BAT in AUTOEXEC.bAT or somewhere similar) you should be able to use the provided makefile.vc. C:\LIBTIFF\LIBTIFF> nmake /f makefile.vc C:\LIBTIFF\LIBTIFF> cd ..\tools C:\LIBTIFF\TOOLS> nmake /f makefile.vc This will build the library file LIBTIFF\LIBTIFF\LIBTIFF.LIB. This can be used in Win32 programs. If used in a project using the /MD compiler switch (using the runtime C library), it may be necessary to modify the CFLAGS macro in makefile.vc to correspond. The makefile also builds a DLL (libtiff.dll) with an associated import library (libtiff_i.lib). Any builds using libtiff will need to include the LIBTIFF\LIBTIFF directory in the include path. The libtiff\tools\makefile.vc should build .exe's for all the standard TIFF tool programs. NOTE: The contents of the contrib/win32 directory should no longer be needed, and are kept in the distribution temporarily.

冬天-来了 2014-09-02