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POHow to compile opencv Hough forest implementation by Gall and Lempitsky
 

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  1. POHow to compile opencv Hough forest implementation by Gall and Lempitsky
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    <p>I'm trying to compile Gall and Lempitsky's Hough forest implementation written for opencv.</p> <p>It can be downloaded from their website <a href="http://www.vision.ee.ethz.ch/~gallju/projects/houghforest/index.html" rel="nofollow">here</a> <a href="http://www.mirrorcreator.com/files/0L6HNLEY/forest.tar.gz_links" rel="nofollow">[mirrors]</a>.</p> <p>It looks like it's having issues finding opencv. I installed opencv 2.3.1 (or 2.4.4 I'm not sure) on ubuntu using <code>sudo apt-get install libopencv-dev opencv-doc</code> and I can compile and run the examples in <code>/usr/share/doc/opencv-doc/examples</code></p> <p>I changed the make file paths as follows:</p> <pre><code># change paths if necessary # INCLUDES = -I/usr/pack/opencv-1.0.0-dr/amd64-debian-linux4.0/include/opencv # LIBS = -lcxcore -lcv -lcvaux -lhighgui -lml # LIBDIRS = -L/usr/pack/opencv-1.0.0-dr/amd64-debian-linux4.0/lib INCLUDES = -I/usr/include/opencv LIBS = -lopencv_calib3d -lopencv_contrib -lopencv_core -lopencv_features2d -lopencv_flann -lopencv_highgui -lopencv_imgproc -lopencv_legacy -lopencv_ml -lopencv_objdetect -lopencv_photo -lopencv_stitching -lopencv_ts -lopencv_video -lopencv_videostab LIBDIRS = -L/usr/lib </code></pre> <p>and the errors I get when I run <code>make all</code> are:</p> <pre><code>g++ -c -I/usr/include/opencv CRForest-Detector.cpp -O3 -Wno-deprecated CRForest-Detector.cpp: In function ‘void run_train()’: CRForest-Detector.cpp:543:27: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] CRForest-Detector.cpp: In function ‘void run_detect()’: CRForest-Detector.cpp:521:27: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] g++ -c -I/usr/include/opencv CRPatch.cpp -O3 -Wno-deprecated g++ -c -I/usr/include/opencv HoG.cpp -O3 -Wno-deprecated g++ -c -I/usr/include/opencv CRForestDetector.cpp -O3 -Wno-deprecated g++ -c -I/usr/include/opencv CRTree.cpp -O3 -Wno-deprecated g++ -L/usr/lib -lopencv_calib3d -lopencv_contrib -lopencv_core -lopencv_features2d -lopencv_flann -lopencv_highgui -lopencv_imgproc -lopencv_legacy -lopencv_ml -lopencv_objdetect -lopencv_photo -lopencv_stitching -lopencv_ts -lopencv_video -lopencv_videostab -o CRForest-Detector CRForest-Detector.o CRPatch.o HoG.o CRForestDetector.o CRTree.o -O3 -Wno-deprecated CRForest-Detector.o: In function `detect(CRForestDetector&amp;)': CRForest-Detector.cpp:(.text+0x3340): undefined reference to `cvLoadImage' CRForest-Detector.cpp:(.text+0x34a3): undefined reference to `cvCreateImage' CRForest-Detector.cpp:(.text+0x357b): undefined reference to `cvCreateImage' CRForest-Detector.cpp:(.text+0x35d9): undefined reference to `cvConvertScale' CRForest-Detector.cpp:(.text+0x3620): undefined reference to `cvSaveImage' CRForest-Detector.cpp:(.text+0x3634): undefined reference to `cvReleaseImage' ... </code></pre> <p>What do I need to change so that g++ sees the necessary libraries? How would I check if the required libraries are installed?</p> <hr> <p>EDIT:</p> <p>this is the output of <code>pkg-config --modversion opencv</code>: 2.4.4</p> <p>this is the output of <code>/usr/lib$ ls | grep "opencv"</code></p> <pre><code>libopencv_calib3d.a libopencv_calib3d.so libopencv_calib3d.so.2.3 libopencv_calib3d.so.2.3.1 libopencv_contrib.a libopencv_contrib.so libopencv_contrib.so.2.3 libopencv_contrib.so.2.3.1 libopencv_core.a libopencv_core.so libopencv_core.so.2.3 libopencv_core.so.2.3.1 libopencv_features2d.a libopencv_features2d.so libopencv_features2d.so.2.3 libopencv_features2d.so.2.3.1 libopencv_flann.a libopencv_flann.so libopencv_flann.so.2.3 libopencv_flann.so.2.3.1 libopencv_gpu.a libopencv_gpu.so libopencv_gpu.so.2.3 libopencv_gpu.so.2.3.1 libopencv_highgui.a libopencv_highgui.so libopencv_highgui.so.2.3 libopencv_highgui.so.2.3.1 libopencv_imgproc.a libopencv_imgproc.so libopencv_imgproc.so.2.3 libopencv_imgproc.so.2.3.1 libopencv_legacy.a libopencv_legacy.so libopencv_legacy.so.2.3 libopencv_legacy.so.2.3.1 libopencv_ml.a libopencv_ml.so libopencv_ml.so.2.3 libopencv_ml.so.2.3.1 libopencv_objdetect.a libopencv_objdetect.so libopencv_objdetect.so.2.3 libopencv_objdetect.so.2.3.1 libopencv_video.a libopencv_video.so libopencv_video.so.2.3 libopencv_video.so.2.3.1 </code></pre> <p>and the output of <code>/usr/include/opencv$ ls | grep ''</code></p> <pre><code>cvaux.h cvaux.hpp cv.h cv.hpp cvwimage.h cxcore.h cxcore.hpp cxeigen.hpp cxmisc.h highgui.h ml.h </code></pre> <p>are all the files I need here or am I missing something?</p> <hr> <p>EDIT 2:</p> <p>changed my includes and libs to the following as suggested: </p> <pre><code>INCLUDES = -I/usr/include/opencv LIBS = /usr/lib/libopencv_core.so /usr/lib/libopencv_highgui.so /usr/lib/libopencv_imgproc.so LIBDIRS = -L/usr/lib </code></pre> <p>which results in the following output:</p> <pre><code>user@user:~/Code/hough_forest$ make clean rm -f *.o *~ CRForest-Detector user@user:~/Code/hough_forest$ make all g++ -c -I/usr/include/opencv CRForest-Detector.cpp -O3 -Wno-deprecated CRForest-Detector.cpp: In function ‘void run_train()’: CRForest-Detector.cpp:543:27: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] CRForest-Detector.cpp: In function ‘void run_detect()’: CRForest-Detector.cpp:521:27: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] g++ -c -I/usr/include/opencv CRPatch.cpp -O3 -Wno-deprecated g++ -c -I/usr/include/opencv HoG.cpp -O3 -Wno-deprecated g++ -c -I/usr/include/opencv CRForestDetector.cpp -O3 -Wno-deprecated g++ -c -I/usr/include/opencv CRTree.cpp -O3 -Wno-deprecated g++ -L/usr/lib /usr/lib/libopencv_core.so /usr/lib/libopencv_highgui.so /usr/lib/libopencv_imgproc.so -o CRForest-Detector CRForest-Detector.o CRPatch.o HoG.o CRForestDetector.o CRTree.o -O3 -Wno-deprecated CRForest-Detector.o: In function `detect(CRForestDetector&amp;)': CRForest-Detector.cpp:(.text+0x3a87): undefined reference to `cvLoadImage' CRForest-Detector.cpp:(.text+0x3b9e): undefined reference to `cvCreateImage' CRForest-Detector.cpp:(.text+0x3c61): undefined reference to `cvCreateImage' CRForest-Detector.cpp:(.text+0x3cae): undefined reference to `cvConvertScale' CRForest-Detector.cpp:(.text+0x3d03): undefined reference to `cvSaveImage' CRForest-Detector.cpp:(.text+0x3d12): undefined reference to `cvReleaseImage' CRForest-Detector.cpp:(.text+0x3d39): undefined reference to `cvReleaseImage' CRForest-Detector.cpp:(.text+0x3d67): undefined reference to `cvReleaseImage' ... </code></pre>
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