Tuesday, April 8, 2014

retrieve a document from indri index

first run the command below;
./dumpindex/dumpindex <index_path> di docno <docuement_no>
this returns a document id and then run the command below;
./dumpindex/dumindex <index_path> dd <document_id>

Friday, March 28, 2014

features.isContionous() assertion - clustering - opencv

probably you forget to initialize the mat in hierarchical clustering.

region of interest (ROI) opencv

they have changed how ROI works in opencv
if you'd like to focus on a region in an image you need to copy it to another image/mat

Mat samples_hog = samples( Rect(0, 0, 96, soFar)).clone();

and do not forget the .clone() part it is important.

in Rect with four parameters (x, y, width, height) but not (x1, y1, x2, y2)

Monday, March 3, 2014

no highlighting in vim

:noh

how tu submit opencv jobs to sge (sun grid engine)

here is the script that I use to submit opencv jobs on sge

qsub -v LD_LIBRARY_PATH=$LD_LIBRARY_PATH:<opencvPATH>/lib/ -b y -cwd -l mem_free=4g -l mem_token=4g ./FlannMatch <PARAMETERS>

Sunday, March 2, 2014

matlab figure fonts issue in ubuntu

it seems like matlab figure fonts are not changed even if you make the changes on ubuntu.

you need to install packages;
xfonts-75dpi
xfonts-100dpi