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Image Analyzer

Usage

Run the program from the image-analyzer directory the filepaths are not absolute therefore a command should look like: ruby bin/imageanalyzer --task RUN

Usage: image_analyzer.rb [options]
    --start N                    Search at the Nth result and start indexing at the Nth filename
    --size N                     Search for and save the N images.
    --task [DOWNLOAD|RUN]        Download images or run images through pipeline.
    --pipeline p1,p2,p3          Designate which parts of the pipeline to run. There is tesseract, laplace, sobel, and filter.
    --query query                Customize the search term to find new images. The default is credit cards.

Examples

ruby bin/image_analyzer.rb --task download --start 0 --size 20 --query 'drivers license'

ruby bin/image_analyzer.rb --task run --pipeline laplace,tesseract,filter

Installation

  • Tesseract needs to be able to be run from the command line. Follow their instructions to install.

  • OpenCV can be downloaded from http://opencv.org/downloads.html

  • It then needs to be compiled, instructions on Mac:

    1. Ensure CMake is installed ("sudo port install cmake")
    2. Create a build directory under the parent directory
    3. Run "cmake -G "Unix Makefiles" .."
    4. Run "make -j8"
    5. Run "sudo make install"

  • Install individual opencv processor

    1. rm -rf CMakeCache.txt CMakeFiles/ Makefile cmake_install.cmake sobel
    2. cmake .
    3. make

  • Lastly run ruby install.rb

Testing

Run all unit tests.

rspec bin/*_spec.rb

Dependencies

  1. ruby gems
    1. google-search
    2. tesseract-ocr (interface for c program)
    3. Rmagick which requires port install imagemagick on Mac OSX
  2. c programs
    1. tesseract-ocr