I made some corrections and included the latest updates to the process as outlined in the TrainingTesseract3 wiki. This will correctly build [lang].traineddata file. Be sure to provide the necessary training files in the same folder: [lang].[fontname].exp[num].tif, [lang].font_properties, [lang].words_list.txt, [lang].frequent_words_list.txt, etc.
<# Automate Tesseract 3.01 language data pack generation process. @author: Quan Nguyen @date: 28 Mar 2011 The script file should be placed in the same directory as Tesseract's binary executables. Run PowerShell as Administrator and allow script execution by running the following command: PS > Set-ExecutionPolicy RemoteSigned Then execute the script by: PS > .\train.ps1 or PS > .\train.ps1 yourlang imageFolder If imageFolder is not specified, it is default to a yourlang subdirectory under Tesseract directory. Windows PowerShell 2.0 Download: http://support.microsoft.com/kb/968929 #> $lang = $args[0] if (!$lang) { $lang = Read-Host "Enter a language code" } $langDir = $lang if ($args[1]) { $langDir = $args[1] } if (!(test-path $langDir)) { throw "{0} is not a valid path" -f $langDir } echo "=== Generating Tesseract language data for language: $lang ===" $fullPath = [IO.Path]::GetFullPath($langDir) echo "** Your training images should be in ""$fullPath"" directory." $al = New-Object System.Collections.ArrayList echo "Make Box Files" $boxFiles = "" Foreach ($entry in dir $langDir) { If ($entry.name.toLower().endsWith(".tif") -and $entry.name.startsWith($lang)) { echo "** Processing image: $entry" $nameWoExt = [IO.Path]::Combine($langDir, $entry.BaseName) $al.Add($nameWoExt) #Bootstrapping a new character set $trainCmd = ".\tesseract {0}.tif {0} -l {1} batch.nochop makebox" -f $nameWoExt, $lang #Should comment out the next line after done with editing the box files to prevent them from getting overwritten in repeated runs. Invoke-Expression $trainCmd $boxFiles += $nameWoExt + ".box " } } echo "** Box files should be edited before continuing. **" echo "Generate .tr Files" $trFiles = "" Foreach ($entry in $al) { $trainCmd = ".\tesseract {0}.tif {0} nobatch box.train" -f $entry Invoke-Expression $trainCmd $trFiles += $entry + ".tr " } echo "Compute the Character Set" Invoke-Expression ".\unicharset_extractor -D $langDir $boxFiles" move-item -force -path $langDir\unicharset -destination $langDir\ $lang.unicharset echo "Clustering" Invoke-Expression ".\mftraining -F $langDir\$lang.font_properties -U $langDir\$lang.unicharset $trFiles" move-item -force -path inttemp -destination $langDir\$lang.inttemp move-item -force -path pffmtable -destination $langDir\$lang.pffmtable move-item -force -path Microfeat -destination $langDir\$lang.Microfeat Invoke-Expression ".\cntraining $trFiles" move-item -force -path normproto -destination $langDir\$lang.normproto echo "Dictionary Data" Invoke-Expression ".\wordlist2dawg $langdir\ $lang.frequent_words_list.txt $langdir\$lang.freq-dawg $langdir\ $lang.unicharset" Invoke-Expression ".\wordlist2dawg $langdir\$lang.words_list.txt $langdir\$lang.word-dawg $langdir\$lang.unicharset" echo "The last file (unicharambigs) -- this is to be manually edited" if (!(test-path $langdir\$lang.unicharambigs)) { new-item "$langdir\$lang.unicharambigs" -type file set-content -path $langdir\$lang.unicharambigs -value "v1" } echo "Putting it all together" Invoke-Expression ".\combine_tessdata $langdir\$lang." -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/tesseract-ocr?hl=en.
