Whoops... where it says pBS, it should be pBSMOG.  I used pBS for the regular
background subtraction that I can't seem to get working.  I've edited it below.


--- In OpenCV@yahoogroups.com, "doylecorp" <doylecorp@...> wrote:
>
> I'm using OpenCV2.3 and basically use the following code to get
BackgroundSubtractorMOG to work:
>
> VideoCapture capture(0);
> if(!capture.isOpened()){
>   return -1;
> }
>
> int key = 0;
> Mat vFrame;
> Mat vFrameMask;
>
> BackgroundSubtractorMOG pBSMOG;
> pBSMOG.getBackgroundImage( vFrameMask );
>
> namedWindow( "Video:", CV_WINDOW_AUTOSIZE );
>
> while( key != 'q' ){
>   capture >> vFrame;
>   key = waitKey( 1 );
>
>   pBSMOG.operator()( vFrame, vFrameMask, -1 );
>   imshow( "Video:", vFrameMask );
> }
>
> pBSMOG.~BackgroundSubtractor();
> destroyWindow( "Video:" );
> capture.release();
>
>
> I haven't found any documentation.  As a matter of fact, I came out here
looking to see how the BackgroundSubtractor without MOG or MOG2 works.  I just
get video and can't seem to do straight up background subtraction.
>
> Hope this helps.
>
>
> --- In OpenCV@yahoogroups.com, "arnaud.grosjean" <arnaud.grosjean@> wrote:
> >
> > Hello I can't find any doc for the the implementation of the
BackgroundSubtractor of the 2.1 release !
> >
> > When doing a simple thing like (considering source is an image from a video)
> >
> > BackgroundSubtractorMOG bgs = BackgroundSubtractorMOG();
> > bgs(source, fgmask);
> >
> >
> > My fgmask do not evolve through time, I mean, the subtractor doesnt seems to
learn whats the background .
> > The first frame which feed the model seems to be taken as a permanent
background.
> >
> > Where could I find some doc ? plz help.
> >
> > Thx.
> >
>

Hi all,

I have an android project which requires some image processing routines. So, I
built a cpp file based on openCV. Now, I want to integrate the 2 projects. And I
come across several challenges for this which are listed below:

1) if I try to mimic the sample projects such as the imagemanipulation
project(by writing out every c code line of my opencv project in its java
equivalent), I get several errors because my project requires the use of vectors
and contours and apparently I cant use it. I dont know why.

I tried to just declare a section of the variables I would need. Here's a part
of the code:

package nd.erwin.ColorimetricAnalysis10;


import org.opencv.*;
import org.opencv.imgproc.*;
import org.opencv.highgui.*;
import org.opencv.core.Point;
import org.opencv.core.Core;


class ImageProcessing{


		 int thresh = 255, N = 11;

		 String wndname = "Square Detection Demo";
		 vector<vector<Point> > squares;
		 vector<vector<Point> > contours;
		 vector<Point> approx;
		 Mat image, newimage, croppedimage;
		 int cosinelimit = 30;
		 int maxLength = 200;

}



2) so, I tried to retain the C file as it is but put it under the jni folder.
But there are a couple of sample projects that use the jni and the dont work at
all. none of the #include commands are working and they give the same error:
"unresolved inclusion". How do I overcome this unresolved inclusion? Also, am I
supposed to build opencv2.3.1 like opencv2.3.0 using the cmake/sh files in order
for the jni to work? am i supposed to do the ndk-build command for the jni files
to work?

Hi all, I'm not really sure where to direct this, but I figure this would be a
good place to start.

I am looking for a way to detect a "dirty windshield" (DW) and compensate around
it. Let me explain what I mean by "dirty windshield". The DW is what happens
when there is stationary interference on the image. Imagine having old
translucent bug splatter on the windshield as you travel down the highway. The
image always changes, but the interference does not. After a few video frames,
it should be able to detect areas of the image that are consistently lighter or
darker than the rest of the image. Then we should be able to use that to create
a normalization function and normalize the image. Examples are bug platter,
reflections from camera optics, and now days, intentional overlays to give
texture to the video.

I'd be looking for a way to detect these, show the normalization, and the
normalized image.

They already use something like this in earth-based space observatories, where a
laser is used to sample the light interference from gasses in the observed
column. They then apply that image to create crisper images than just the
photography alone.

As a simple example, consider the 3 samples of a 3-pixel single row image: 121,
232, 343

Here, the normalized image is: 0,-1,0
We then apply the normalization to the frames an get: 111,222,333

Does anything like this exist?
Can this be done in OpenCVI?

Thanks.

I took this code and adjusted it a bit.  For some reason the Hough image shows a
black image.  Please help (you may change the source of the image to whatever
you want)


#include "highgui.h"
#include "cv.h"
#include <iostream>

IplImage* doPyrDown(IplImage* in, int filter = IPL_GAUSSIAN_5x5)
{
     // Best to make sure input image is divisible by two.
     //
     assert( in->width%2 == 0 && in->height%2 == 0 );
     IplImage* out = cvCreateImage(cvSize( in->width/2, in->height/2 ),
in->depth, in->nChannels);
     cvPyrDown( in, out );
     return( out );
};


int main()
{
         IplImage* img = cvLoadImage("C:\\Users\\Public\\Pictures\\Sample
Pictures\\Lighthouse.jpg",0);
         IplImage* out = doPyrDown(img, IPL_GAUSSIAN_5x5);
         //IplImage* temp = cvCreateImage(cvGetSize(img), IPL_DEPTH_8U, 1);
         IplImage* dst = cvCreateImage( cvGetSize(img), IPL_DEPTH_8U, 1 );
         IplImage* color_dst = cvCreateImage( cvGetSize(img), IPL_DEPTH_8U, 3 );
         CvMemStorage* storage = cvCreateMemStorage(0);
         CvSeq* lines = 0;
         int i;
         cvCanny( out, out, 50, 200, 3 );
         cvCvtColor( dst, color_dst, CV_GRAY2BGR );

         lines = cvHoughLines2( dst,
                                storage,
                                CV_HOUGH_STANDARD,
                                1,
                                CV_PI/180,
                                100,
                                0,
                                0 );

         for( i = 0; i < MIN(lines->total,100); i++ )
         {
             float* line = (float*)cvGetSeqElem(lines,i);
             float rho = line[0];
             float theta = line[1];
             CvPoint pt1, pt2;
             double a = cos(theta), b = sin(theta);
             double x0 = a*rho, y0 = b*rho;
             pt1.x = cvRound(x0 + 1000*(-b));
             pt1.y = cvRound(y0 + 1000*(a));
             pt2.x = cvRound(x0 - 1000*(-b));
             pt2.y = cvRound(y0 - 1000*(a));
             cvLine( color_dst, pt1, pt2, CV_RGB(255,0,0), 3, 8 );
         }

         cvNamedWindow( "Source", 1 );
         cvShowImage( "Source", img );

         cvNamedWindow( "Hough", 1 );
         cvShowImage( "Hough", color_dst );

         cvWaitKey(0);

         return 0;
}

Hi,

Weird. I did not use LSH directly. There is an experimental package
http://www.ros.org/wiki/tod_detecting which I used together with ORB, in
particularly the file
https://code.ros.org/svn/wg-ros-pkg/branches/trunk_diamondback/stacks/object_rec\
ognition/tod_detecting/src/Matcher.cpp

I am afraid that's all I can tell you right now because I did not
use it directly.

Julius

--- In OpenCV@yahoogroups.com, "kutawei@..." <kutawei@...> wrote:
>
> Hi, Julius. I test the ORB descriptor in opencv2.3 with LSH matcher in ROS you
instructed me. I was confuse that LSH was slower about 5 times than BruteForce
matcher. I want to know how you get the faster result. I used VS2010 so I only
modified the original lsh.cpp a little( __builtin_popcountll -> __popcnt) to
compile. but I don't think it's the reason. was I wrong something? and my test
program are base on the
> opencv example brief_match_test.cpp. I can't get lsh run under debug mode too,
strangely. could you please help me? thank you advance.
> --- In OpenCV@yahoogroups.com, "kutawei@" <kutawei@> wrote:
> >
> > thank you Julius again. I got it.
> >
> > --- In OpenCV@yahoogroups.com, "Julius Adorf" <jeadorf@> wrote:
> > >
> > > The ROS package rbrief is contained in ROS stack
object_recognition_experimental (be warned, the name already tells that
everything therein is very experimental):
> > >
> > >
https://code.ros.org/trac/wg-ros-pkg/browser/branches/trunk_diamondback/stacks/o\
bject_recognition_experimental/rbrief/src/lsh.cpp
> > >
> > > --- In OpenCV@yahoogroups.com, "kutawei@" <kutawei@> wrote:
> > > >
> > > > thank you julius. but I can't find the LSH implement in ROS, i seems
that was delete. if you have the code, can you share it? otherwise, we have to
wait opencv2.3.1 release.
> > > >
> > > > --- In OpenCV@yahoogroups.com, "Julius Adorf" <jeadorf@> wrote:
> > > > >
> > > > >
> > > > >
> > > > > Yeah, LSH will be introduced with OpenCV 2.3.1, according to
http://opencv.willowgarage.com/wiki/OpenCV%20Change%20Logs
> > > > >
> > > > > AFAIK, the LSH implementation will be migrated from the Robot
Operating System package rbrief in the stack object_recognition_experimental
over to OpenCV 2.3.1.
> > > > >
> > > > > Have you checked the development version of OpenCV? Is
> > > > > LSH already included therein?
> > > > >
> > > > > Some of my experiments with ORB and LSH showed that LSH is way faster
(25-50 times in my application) than brute-force matching. I think,  it's worth
a try.
> > > > >
> > > > > Julius
> > > > >
> > > > > --- In OpenCV@yahoogroups.com, "kutawei@" <kutawei@> wrote:
> > > > > >
> > > > > > hi, is there anybody find ways how to use the new ORB descriptor, as
it contain the rotate information, i need an example to see how to match two
images by ORB. another questions is LSH really suitable for BRIEF or ORB match?
i thought the nearest search a problem in hamming space, should i sit and wait
the opencv2.3.1 out?
> > > > > >
> > > > >
> > > >
> > >
> >
>

Is there a page for total idiots to install it on Windows?

I go to the download page:
http://sourceforge.net/projects/opencvlibrary/files/opencv-win/2.3/

There I have two choices (OpenCV-2.3.0-win-superpack.exe versus
OpenCV-2.3.0-win-src.zip). Which one? Well, I know I like executables because it
will install it for me. So I got that, and it unpacks a folder. Then what?

I then install CMake, and enter C:/Program Files/OpenCV2.3/opencv in 'where is
the source code' and some random folder for the binaries. Then I get:
====================
The C compiler identification is unknown
The CXX compiler identification is unknown
Check for working C compiler: bcc32
CMake Error: your C compiler: "bcc32" was not found.   Please set
CMAKE_C_COMPILER to a valid compiler path or name.
CMake Error: Internal CMake error, TryCompile configure of cmake failed
Check for working C compiler: bcc32 -- broken
CMake Error at C:/Program Files/CMake
2.8/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake:52 (MESSAGE):
   The C compiler "bcc32" is not able to compile a simple test program.
   It fails with the following output:
   CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
   CMakeLists.txt:56 (project)
CMake Error: your C compiler: "bcc32" was not found.   Please set
CMAKE_C_COMPILER to a valid compiler path or name.
CMake Error: your CXX compiler: "bcc32" was not found.   Please set
CMAKE_CXX_COMPILER to a valid compiler path or name.
======================

Crap, I thought I had C installed on this computer. Now what?

Hi everybody,

I have some problems with GLCM. It doesn't work for me? i found a topic with a
new version proposed but it also doesn't work for me.
Any help :( ?
Thanks.

__
Joobeur.

Hi,
GLCM id working for you ? can i have the working version ?
Thanx.


--- In OpenCV@yahoogroups.com, Neal Harvey <neal.harvey@...> wrote:
>
> These Haralick features - are these the Gray-Level Co-Occurrence Matrices
> (GLCM)? If so, as I stated in my previous emails, there is some code in OpenCV
> that is supposed to do this (in "cvaux", in v2.0.0, anyway. I think it is in
> "legacy" in v.2.2.0).
> However, it is broken. I posted some things that I did that seemed to get it
> working.
>
> I compared the results of using this (fixed?) code with what I got from the
GLCM
>
> functionality in Matlab and the results were similar, if not exactly the same.
>
>
>
> Cheers
>
> Harve
>
>
> ________________________________
> From: Dieter <dieter_lorenz@...>
> To: OpenCV@yahoogroups.com
> Sent: Wed, December 22, 2010 5:43:22 AM
> Subject: [OpenCV] Re: Texture feature calculation in OpenCV
>
>
> Hi,
>
> I also did not receive any response so I have implemented a subset of
Haralick's
> features by myself for my application.
>
> One possible implementation is here:
> http://murphylab.web.cmu.edu/publications/boland/boland_node101.html
>
> This version is not optimized for fast calculation but maybe a nice starting
> point for you.
>
> Regards
> Dieter
>
> --- In OpenCV@yahoogroups.com, Neal Harvey <neal.harvey@> wrote:
> >
> > I recently sent several emails on this subject, but got not one response.
> >
> >
> >
> >
> >
> > ________________________________
> > From: caillou.sylvain <caillou.sylvain@>
> > To: OpenCV@yahoogroups.com
> > Sent: Thu, December 16, 2010 11:20:00 AM
> > Subject: [OpenCV] Re: Texture feature calculation in OpenCV
> >
> >
> > Hi there,
> >
> > Same problem for me... Did you get any answer or solution to this problem ?
> >
> > Regards
> >
> > Sylvain
> >
> > --- In OpenCV@yahoogroups.com, "Dieter" <dieter_lorenz@> wrote:
> > >
> > > Hi there,
> > >
> > > I am looking for an implementation of the "classic" texture features which
> >were
> >
> > >published by Haralick et al.
> > >
> > > I am also interested in other region feature calculations (e.g. gray-level
> >run
> >
> > >lengths).
> > >
> > > My aim is to distinguish different areas in an image by classifying the
> >texture
> >
> > >features.
> > >
> > > Regards
> > > Dieter
> > >
> >
>

Hi All,

I have an Android project and I need some image processing tools built into it.
So, I have developed a .cpp code using opencv functions. Now, I want to use this
cpp code to do the image processing by passing the image to the cpp functions.

I dont want to use javaCV. I want to retain the cpp code as it is. I want to
know how to include the opencv libraries into my android project as well as the
cpp code i wrote and make it work.

I tried examples in the opencv2.3.1 prebuilt package and none of the JNI based
examples work. If some1 could give me an example project esp the essential parts
like the Android.mk and application.mk files, I would be very grateful.

Dear Samuel,

I have attempted to re-write a code i wrote in c++ in javacv for my android
application. I am facing some problem like different function headers or
parameter names. eg. in C++ : we write (assume img to be of CvMat type).
img.rows to get the number of rows but in javaCV we write img.rows() i guess. My
problem is that I am not able to see how the CvMat is defined. And I want to see
how certain objects are defined so that i can exploit their parameters or
functions etc. I notice that javacv's src downloadable from
http://code.google.com/p/javacv/downloads/detail?name=javacv-src-20110705.zip&ca\
n=2&q=
has the option of seeing whats in the objects name.

is there a way by which i can use the javacv's src instead of the jar files?

Thank you.

--- In OpenCV@yahoogroups.com, Samuel Audet <samuel.audet@...> wrote:
>
> Hello all,
>
> Just wanted to let everyone know that I managed to make JNA, OpenCV, and
> JavaCV work on the Android platform. It was actually easier than I first
> thought. Consequently, it is now possible to access all of OpenCV's C
> API directly from Java without coding with any JNI or NDK.
>
> For those interested in a quick test, I also created a sample
> application named FacePreview (facedetect + CameraPreview). To install
> it, you may scan from your device the QR code on this page:
>
> http://code.google.com/p/javacv/downloads/detail?name=facepreview-20101202.apk
> Or click on this link if you are reading this message from an Android
> device:
>      http://javacv.googlecode.com/files/facepreview-20101202.apk
>
> It works fine with Android 2.2 on my HTC Desire, but it may not work on
> all devices.
>
> The source code of the sample
>      http://javacv.googlecode.com/files/facepreview-src-20101202.zip
> also contains the precompiled binaries of OpenCV and JNA.
>
> I hope others also find it useful!
>
> Samuel
>

Hi, Julius. did you just miss my last post? I want to know how you experiment
with the LSH matcher from ROS. thank you. BTW, OpenCV doesn't integrate LSH
until now.

--- In OpenCV@yahoogroups.com, "Julius Adorf" <jeadorf@...> wrote:
>
> You're welcome. Just in case you're observing OpenCV trunk
> you might notify me in this thread as soon as LSH is integrated.
> I'm still interested in it as well.
>
> Julius
>
> --- In OpenCV@yahoogroups.com, "kutawei@" <kutawei@> wrote:
> >
> > thank you Julius again. I got it.
> >
> > --- In OpenCV@yahoogroups.com, "Julius Adorf" <jeadorf@> wrote:
> > >
> > > The ROS package rbrief is contained in ROS stack
object_recognition_experimental (be warned, the name already tells that
everything therein is very experimental):
> > >
> > >
https://code.ros.org/trac/wg-ros-pkg/browser/branches/trunk_diamondback/stacks/o\
bject_recognition_experimental/rbrief/src/lsh.cpp
> > >
> > > --- In OpenCV@yahoogroups.com, "kutawei@" <kutawei@> wrote:
> > > >
> > > > thank you julius. but I can't find the LSH implement in ROS, i seems
that was delete. if you have the code, can you share it? otherwise, we have to
wait opencv2.3.1 release.
> > > >
> > > > --- In OpenCV@yahoogroups.com, "Julius Adorf" <jeadorf@> wrote:
> > > > >
> > > > >
> > > > >
> > > > > Yeah, LSH will be introduced with OpenCV 2.3.1, according to
http://opencv.willowgarage.com/wiki/OpenCV%20Change%20Logs
> > > > >
> > > > > AFAIK, the LSH implementation will be migrated from the Robot
Operating System package rbrief in the stack object_recognition_experimental
over to OpenCV 2.3.1.
> > > > >
> > > > > Have you checked the development version of OpenCV? Is
> > > > > LSH already included therein?
> > > > >
> > > > > Some of my experiments with ORB and LSH showed that LSH is way faster
(25-50 times in my application) than brute-force matching. I think,  it's worth
a try.
> > > > >
> > > > > Julius
> > > > >
> > > > > --- In OpenCV@yahoogroups.com, "kutawei@" <kutawei@> wrote:
> > > > > >
> > > > > > hi, is there anybody find ways how to use the new ORB descriptor, as
it contain the rotate information, i need an example to see how to match two
images by ORB. another questions is LSH really suitable for BRIEF or ORB match?
i thought the nearest search a problem in hamming space, should i sit and wait
the opencv2.3.1 out?
> > > > > >
> > > > >
> > > >
> > >
> >
>

My undergraduate final project topic is estimation of  position of the brush on
the LCD screen using a camera
Can someone give me an idea or solution?
I do this using Opencv
I am a beginner
thanks...

Whoops... where it says pBS, it should be pBSMOG.  I used pBS for the regular
background subtraction that I can't seem to get working.  I've edited it below.


--- In OpenCV@yahoogroups.com, "doylecorp" <doylecorp@...> wrote:
>
> I'm using OpenCV2.3 and basically use the following code to get
BackgroundSubtractorMOG to work:
>
> VideoCapture capture(0);
> if(!capture.isOpened()){
>   return -1;
> }
>
> int key = 0;
> Mat vFrame;
> Mat vFrameMask;
>
> BackgroundSubtractorMOG pBSMOG;
> pBSMOG.getBackgroundImage( vFrameMask );
>
> namedWindow( "Video:", CV_WINDOW_AUTOSIZE );
>
> while( key != 'q' ){
>   capture >> vFrame;
>   key = waitKey( 1 );
>
>   pBSMOG.operator()( vFrame, vFrameMask, -1 );
>   imshow( "Video:", vFrameMask );
> }
>
> pBSMOG.~BackgroundSubtractor();
> destroyWindow( "Video:" );
> capture.release();
>
>
> I haven't found any documentation.  As a matter of fact, I came out here
looking to see how the BackgroundSubtractor without MOG or MOG2 works.  I just
get video and can't seem to do straight up background subtraction.
>
> Hope this helps.
>
>
> --- In OpenCV@yahoogroups.com, "arnaud.grosjean" <arnaud.grosjean@> wrote:
> >
> > Hello I can't find any doc for the the implementation of the
BackgroundSubtractor of the 2.1 release !
> >
> > When doing a simple thing like (considering source is an image from a video)
> >
> > BackgroundSubtractorMOG bgs = BackgroundSubtractorMOG();
> > bgs(source, fgmask);
> >
> >
> > My fgmask do not evolve through time, I mean, the subtractor doesnt seems to
learn whats the background .
> > The first frame which feed the model seems to be taken as a permanent
background.
> >
> > Where could I find some doc ? plz help.
> >
> > Thx.
> >
>

I found a solution to run my first application, based on this tutorial:

http://redkiing.wordpress.com/2010/10/03/opencv-and-visual-studio-2010-with-cmak\
e/

--- In OpenCV@yahoogroups.com, "hibchan8355" <chanbessie@...> wrote:
>
> Hi!
>
> I was wondering if anyone knew during the auto-train method, whether cvSVM
uses the [1 vs 1] or [1 vs all] classification method for multiple classes. Or
is it neither?
>
> Thanks!
>
have you solve the question ?

The train_auto function will accept the same CvSVMParams  as the train function.

From the documentation:

This function works for the case of classification (
params.svm_type=CvSVM::C_SVC or params.svm_type=CvSVM::NU_SVC ) as
well as for the regression ( params.svm_type=CvSVM::EPS_SVR or
params.svm_type=CvSVM::NU_SVR ). If params.svm_type=CvSVM::ONE_CLASS ,
no optimization is made and the usual SVM with specified in params
parameters is executed.

---

The difference is that the chosen parameters defined in CvSVMParams
are automatically optimised.

http://opencv.willowgarage.com/documentation/cpp/support_vector_machines.html


On Mon, Aug 1, 2011 at 7:53 AM, boyfollowtutor <boyfollowtutor@...> wrote:
>
>
>
> --- In OpenCV@yahoogroups.com, "hibchan8355" <chanbessie@...> wrote:
> >
> > Hi!
> >
> > I was wondering if anyone knew during the auto-train method, whether cvSVM
uses the [1 vs 1] or [1 vs all] classification method for multiple classes. Or
is it neither?
> >
> > Thanks!
> >
> have you solve the question ?
>
>

Check the access permissions of the file you are trying to read and
check that the path you are passing in is correct. Test the code by
trying to open an image from within the same directory as the .exe.

I have added all the libraries and all the neccessary stuff but still i have
this error.

Error: The program can't start because cxcore210.dll is missing from your
computer. Try reinstalling the program to fix this problem.

But i have already included the file in my SYSTEM_ROOT directory. How to solve
this error? does any one know? would appreciate any help...

Moreover, i get this errors as well..

'Testcv.exe': Loaded 'C:\Users\User\Documents\Visual Studio
2010\Projects\Testcv\Debug\Testcv.exe', Symbols loaded.
'Testcv.exe': Loaded 'C:\Windows\SysWOW64\ntdll.dll', Cannot find or open the
PDB file
'Testcv.exe': Loaded 'C:\Windows\SysWOW64\kernel32.dll', Cannot find or open the
PDB file
'Testcv.exe': Loaded 'C:\Windows\SysWOW64\KernelBase.dll', Cannot find or open
the PDB file
The program '[10272] Testcv.exe: Native' has exited with code -1073741515
(0xc0000135).
--- In OpenCV@yahoogroups.com, "cnn" <cnnlakshmen_2000@...> wrote:
>
> I have added all the libraries and all the neccessary stuff but still i have
this error.
>
> Error: The program can't start because cxcore210.dll is missing from your
computer. Try reinstalling the program to fix this problem.
>
> But i have already included the file in my SYSTEM_ROOT directory. How to solve
this error? does any one know? would appreciate any help...
>

bcc sounds like Borland compiler. You probably want to use Microsoft Visual
Studio, assuming you have it installed, else download the express version from
their website.

--- In OpenCV@yahoogroups.com, "bluedevil.knight" <bluedevil.knight@...> wrote:
>
> Is there a page for total idiots to install it on Windows?
>
> I go to the download page:
> http://sourceforge.net/projects/opencvlibrary/files/opencv-win/2.3/
>
> There I have two choices (OpenCV-2.3.0-win-superpack.exe versus
> OpenCV-2.3.0-win-src.zip). Which one? Well, I know I like executables because
it will install it for me. So I got that, and it unpacks a folder. Then what?
>
> I then install CMake, and enter C:/Program Files/OpenCV2.3/opencv in 'where is
the source code' and some random folder for the binaries. Then I get:
> ====================
> The C compiler identification is unknown
> The CXX compiler identification is unknown
> Check for working C compiler: bcc32
> CMake Error: your C compiler: "bcc32" was not found.   Please set
CMAKE_C_COMPILER to a valid compiler path or name.
> CMake Error: Internal CMake error, TryCompile configure of cmake failed
> Check for working C compiler: bcc32 -- broken
> CMake Error at C:/Program Files/CMake
2.8/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake:52 (MESSAGE):
>   The C compiler "bcc32" is not able to compile a simple test program.
>   It fails with the following output:
>   CMake will not be able to correctly generate this project.
> Call Stack (most recent call first):
>   CMakeLists.txt:56 (project)
> CMake Error: your C compiler: "bcc32" was not found.   Please set
CMAKE_C_COMPILER to a valid compiler path or name.
> CMake Error: your CXX compiler: "bcc32" was not found.   Please set
CMAKE_CXX_COMPILER to a valid compiler path or name.
> ======================
>
> Crap, I thought I had C installed on this computer. Now what?
>