Ok, then my method is adaptive. It has a few controls that I should tweak a bit. Or maybe I am expecting too much, and these images are just not good enough.
Here is the config. As you say, maybe I need to get the development version of opencv. $ pkg-config opencv --libs -lopencv_calib3d -lopencv_imgproc -lopencv_contrib -lopencv_legacy On Tuesday, October 28, 2014 1:49:57 AM UTC-4, rkomar wrote: > > On Mon, 27 Oct 2014, Rick Leir wrote: > > > Hi Rob > > My preprocessing is mentioned in this post: > > https://groups.google.com/forum/#!topic/tesseract-ocr/jON > > GSChLRv4 > > > > Maybe you would call it adaptive? > > Adaptive means that the threshold for choosing between > black and white changes over different parts of the image. > Generally, the background is studied in each area to > see what the threshold should be. > > > Thanks for mentioning Wolf. I tried to compile the latest > > version but my 14.04 config must be wrong and I get: > > > > ~/ocr/wolf/binarizewolfjolion-src$ > > PKG_CONFIG_PATH=/usr/lib/pkgconfig/ make > > g++ -I/usr/include/opencv binarizewolfjolion.cpp -o > > binarizewolfjolion `pkg-config opencv --libs`-lstdc++ > > /usr/bin/ld: /tmp/ccwdIqAh.o: undefined reference to > > symbol '_ZN2cv11_InputArrayC1ERKNS_3MatE' > > //usr/lib/x86_64-linux-gnu/libopencv_core.so.2.4: error > > adding symbols: DSO missing from command line > > Perhaps you need the development version of opencv > to compile the code. What do you see when you run > "pkg-config opencv --libs" in a terminal? It should > point to a library file that you can link to. > Unfortunately, I can't test the build myself in my > Ubuntu OS because I use a custom version of ruby, > and the binarize scripts are hard-coded to /usr/bin/ruby. > > Rob > -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/c4da9310-29e7-44d2-a2ca-9f50df7dd69d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
