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- <h1 align="center">
- Open Source Computer Vision Libray</h1>
- <p align="center">
- <i><font size="+4" color="#000000">
- Frequently Asked Questions
- </font></i></p>
- </TD>
- </TR>
- </TABLE></CENTER>
-
- <p> </p>
- <h2>
-
-<b>General Qs:</b>
- </h2>
- <p> </p>
-<h3 ><b>Q1: Where do I submit Bug reports for
-the computer vision library?</b></h3>
-<p >A1: Send email to <a href="mailto:OpenCV@yahoogroups.com">OpenCV@yahoogroups.com</a>
-Subject: BUG <....your title...></p>
-<p > </p>
-<h3 ><b>Q2: How do I send bug reports for the
-Intel® Image Processing Library?</b></h3>
-<p >A2: Send email to <a href="mailto:developer_support@intel.com">developer_support@intel.com</a><br>
-</p>
-<h3 ><b>Q3: How do I join the web group for
-the library?</b></h3>
-<p >A3: Send email to <a href="mailto:OpenCV-subscribe@yahoogroups.com">OpenCV-subscribe@yahoogroups.com</a>,
-after you are a member and select your logon, you can read the web group at <a href="http://groups.yahoo.com/group/OpenCV">http://groups.yahoo.com/group/OpenCV</a>
- **. </p>
-<p > </p>
-<h3 ><b>Q4: How do I modify the web group so
-that I don't receive email everyday?</b></h3>
-<p >A4: To get the messages real time, or
-once a day as a daily digest, you can go to <a href="http://groups.yahoo.com/mygroups" target="_top">http://groups.yahoo.com/mygroups</a>
- ** and choose your setting from the pull down list to the right of OpenCV. </p>
-
-<p>
-</p>
-
-<h3><b>Q5: How do I get support for the Image Processing Library (IPL)?</b>
-</h3>
-
-<p>
-A5: For the Image Processing Library, all support questions should go through:<BR>
-<a href="http://support.intel.com/support/performancetools/support.htm"> http://support.intel.com/support/performancetools/support.htm</a> (for release libraries)<BR>
-<a href="https://premier.intel.com/scripts-quad/welcomeplsb.asp"> https://premier.intel.com/scripts-quad/welcomeplsb.asp</a> (for beta libraries)<BR>
-</p>
-
- <h2><BR>
-<b >Windows* OS related Qs:</b>
-<BR><BR>
- </h2>
-<h3 ><b>Q1: When I try to build one of the
-apps, I get an error, streams.h not found?</b></h3>
- <p >A1: You need the direct show SDK for
-streams.h. You do not need DirectX* SDK for NT* 4.0 to compile and run DirectShow
-filters. You need only DirectX Media* SDK (version 5.x or higher), that can be
-downloaded from <a href="http://microsoft.com/directx/homeuser/downloads/default.asp" target="_top">http://microsoft.com/directx/homeuser/downloads/default.asp</a>
- ** This SDK can be used under Win98, NT 4.0 or Win2000 without any problem. Do not forget to put
-paths to the <i>include</i> subfolder and <i> classes\base</i> (in case of
- DirectX Media 5.x or 6.x) or <i>samples\Multimedia\DirectShow\BaseClasses </i>(in
- case of DirectX 8.x) subfolder to include paths in
-DevStudio* (they should go <b>first </b>in the list!!!) and <i> lib</i> subfolder to lib
-paths in DevStudio. </p>
- <p >If you have DirectX 8.x, you should build base C++ library for Direct
- Show by yourself. In DevStudio open <i>baseclasses.dsw</i> workspace from <i>samples\Multimedia\DirectShow\BaseClasses</i>
- subfolder and build both release and debug configurations of the library.
- Finally, copy resulting <i>strmbase.lib</i> and <i>strmbasd.lib </i>libraries
- to <i>lib</i> subfolder of DirectX 8.x or OpenCV installation folder. That's
- it. </p>
-<h3 > </h3>
-<h3 ><b>Q2: I've installed the DirectX Media
-SDK, but get build problems.</b></h3>
-<p >A2: Do not forget to put paths to the
-include subfolder and classes\base subfolder to include paths in DevStudio (they
-should go <b>first </b>in the list!!!) and lib subfolder to lib paths in
-DevStudio. Do not forget to build DirectShow C++ libraries. See the previous
-question as well. </p>
-<h3 > </h3>
-<h3 ><b>Q3: Where can I find out about
-compatible USB Cameras?</b></h3>
-<p >A3: look at <a href="http://web2.airmail.net/mprater/101/">http://web2.airmail.net/mprater/101/</a> **
-There are a lot of USB camera (often called WebCams) links there. </p>
-<p > </p>
-<h3 ><b>Q4: When I build a filter graph with
-a USB camera, there are no output pins!? (Happens with Win2000* 3Com* camera).</b></h3>
-<p >A4: You can get the output pins to
-appear by selecting "refresh" from the graphedt.exe** menu.</p>
-<p > </p>
-<h3 ><b>Q5: How do you set the video format
-(e.g., resolution) of a WDM* video capture source camera within GraphEdit* (Filter
-Graph Editor)?</b></h3>
-<p >A5: Set the video format with the
-property page of the output pin of the capture source. Just click the right
-mouse button in GraphEdit on the output pin to display the property page. <b>But</b>
-make sure you do that before connecting the pin to other pins.</p>
-<p > </p>
-<h3 ><b>Q6: When I try to register a filter
-or install the library, I get an "IPL Waterfall" error, what's up?</b></h3>
-<p >A6: IPL library has a bug in it, it
-uses a DLL switcher so that IPL.DLL replaces itself with the processor
-appropriate DLL (such as IPLA6.DLL for a PIII). The problem is, the DLL
-switcher looks only in the system path, not in the current directory.
-Thus, if the IPL DLL directory isn't in the system path, or you have a different
-version of IPL somewhere in front of the current directory in the system path,
-this error will occur. Solution: Get rid of other versions of IPL and
-change the system path to point to the correct IPL directory or move the IPL
-DLLs to a directory (system, system32) that is in the system path.</p>
-<p > </p>
-<h3 ><b>Q7: How do I register a
-directShow filter?</b></h3>
-<p >A7: Call up a command line prompt, cd
-to the directory the filter is in, run regsvr32 <filtername.ax>.
-Obviously, this will only work if regsvr32 is in your system path. </p>
-<p > </p>
-<h3 ><b>Q8: regsvr32 <filtername.ax>
-fails. What to do?</b></h3>
-<p >A8: Almost always means that some DLL
-the filter depends on is not being found in the local directory or the system
-path. If you have MSVC++* installed, you have a copy of a program called
-"depends.exe". Run this program on the offending filter.
-Missing DLLs will appear highlighted. Find these DLLs, move them to the
-local directory or system path and try regsvr32 again. Viola.</p>
-<h3> </h3>
-<h3><b>
-Q9: I get: LINK : fatal error LNK1104: cannot open file "cvd.lib" Error executing link.exe. Where can I get this lib from?</B></h3>
-<p>
-A9: It's the debug version of the library. Using MSVC++: Either: Under the Project menu, select Settings. Then select the Link tab and change the library to use to cv.lib; Or: Build a debug version of the library -- Under the build menu select "Set Active Configuration", click on "Debug" and the build all to build a debug version of cv.lib named cvd.lib. Another method is to just rename cv.lib to cvd.lib ... but you won't be able to debug.</p>
-<p > </p>
-
- <h2>
-
-<b >Linux* Related Qs:</b>
- </h2>
-<p > </p>
-<h3><b>Q1:
-Do you know, if there exist any Linux drivers for USB cameras and/or for Matrox
-MeteorII boards?</b></h3>
-<p>A1:
-USB on Linux is just now maturing, but is doing so very quickly. The best site
-to visit is (URL:<a href="http://www.linux-usb.org/">http://www.linux-usb.org/ </a>**
-). Of specific interest is the link (URL:<a href="http://www.qbik.ch/usb/devices/">http://www.qbik.ch/usb/devices/</a>
-**), which has a video section. For the Matrox MeteorII, there appears to be a
-driver for the Linux4Video2 system, which is a more advanced video system being
-developed in parallel with the Linux4Video(1), included in the kernel. Details
-at (URL:<a href="http://www.thedirks.org/v4l2/">http://www.thedirks.org/v4l2/</a>
-**). See the "People" section for the driver. A downside with V4L2 is
-that it's not yet working under 2.3.x or 2.4.x of the Linux kernel.</p>
-<p > </p>
-<!-- <h3 ><b>Q2: OpenCV won't run without a Linux
-version of the Intel® Image Processing Library, where do I get this?</b></h3>
-<p >A2: Go to the <a href="/research/mrl/research/cvlib/Downloadlicense.htm">download</a>
-page and get the Intel® Image Processing Library (IPL) for Linux<font size="3">.</font></p>
-<p > </p>
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projects / opencv / blobdiff