homebrew-core/Formula/tesseract.rb
2011-05-19 07:37:24 -07:00

34 lines
1 KiB
Ruby

require 'formula'
class TesseractEnglishData < Formula
url 'http://tesseract-ocr.googlecode.com/files/eng.traineddata.gz',
:using => GzipOnlyDownloadStrategy
md5 'd91041ad156cf2db36664e91ef799451'
version '3.00'
end
class Tesseract < Formula
url 'http://tesseract-ocr.googlecode.com/files/tesseract-3.00.tar.gz'
homepage 'http://code.google.com/p/tesseract-ocr/'
md5 'cc812a261088ea0c3d2da735be35d09f'
depends_on 'libtiff'
fails_with_llvm "Executable 'tesseract' segfaults on 10.6 when compiled with llvm-gcc", :build => "2206"
def install
system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}"
system "make install"
TesseractEnglishData.new.brew { mv "eng.traineddata", "#{share}/tessdata/" }
end
def caveats; <<-EOF.undent
Tesseract is an OCR (Optical Character Recognition) engine.
The easiest way to use it is to convert the source to a Grayscale tiff:
`convert source.png -type Grayscale terre_input.tif`
then run tesseract:
`tesseract terre_input.tif output`
EOF
end
end