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OCRmyPDF.sh: new debug option (-g) added

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fritz-hh
2013-04-22 22:50:34 +02:00
parent 422aaa80f3
commit 4ce249e6ed
1 changed files with 23 additions and 8 deletions
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OCRmyPDF.sh
+23 -8
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@@ -12,10 +12,14 @@ tesseract engine)
Copyright: fritz from NAS4Free forum
Version: $VERSION
Usage: OCRmyPDF.sh [-h] [-v] [-k] [-d] [-c] [-i] [-l language] inputfile
Usage: OCRmyPDF.sh [-h] [-v] [-g] [-k] [-d] [-c] [-i] [-l language] inputfile
-h : Display this help message
-v : Increase the verbosity (this option can be used more than once)
-g : Activate debug mode:
- Generates a PDF file containing each page twice (once with the image, once without the image
but with the OCRed text as well as the detected bounding boxes detected during OCR)
- Set the verbosity to the highest possible
-k : Do not delete the temporary files
-d : Deskew each page before performing OCR
-c : Clean each page before performing OCR
@@ -49,12 +53,14 @@ KEEP_TMP="0" # do not delete the temporary files (default)
PREPROCESS_DESKEW="0" # 0=no, 1=yes (deskew image)
PREPROCESS_CLEAN="0" # 0=no, 1=yes (clean image to improve OCR)
PREPROCESS_CLEANINPDF="0" # 0=no, 1=yes (put cleaned image in final PDF)
DEBUG_MODE="0" # 0=no, 1=yes (generates each PDF page twice, with and without image)
# Parse optional command line arguments
while getopts ":hvkdcil:" opt; do
while getopts ":hvgkdcil:" opt; do
case $opt in
h) usage ; exit 0 ;;
v) VERBOSITY=$(($VERBOSITY+1)) ;;
g) VERBOSITY="10"; DEBUG_MODE="1" ;;
k) KEEP_TMP="1" ;;
d) PREPROCESS_DESKEW="1" ;;
c) PREPROCESS_CLEAN="1" ;;
@@ -136,10 +142,11 @@ while read pageSize ; do
[ $VERBOSITY -ge $LOG_INFO ] && echo "Processing page $page"
# create the name of the required file
curOrigImg="$tmp/${page}_Image" # original image available in the current PDF page
# (the image file may have a different orientation than in the pdf file)
curHocr="$tmp/$page.hocr" # hocr file to be generated by the OCR SW for the current page
curOCRedPDF="$tmp/${page}-ocred.pdf" # PDF file containing the image + the OCRed text for the current page
curOrigImg="$tmp/${page}_Image" # original image available in the current PDF page
# (the image file may have a different orientation than in the pdf file)
curHocr="$tmp/$page.hocr" # hocr file to be generated by the OCR SW for the current page
curOCRedPDF="$tmp/${page}-ocred.pdf" # PDF file containing the image + the OCRed text for the current page
curOCRedPDFDebug="$tmp/${page}-debug-ocred.pdf" # PDF file containing data required to find out if OCR worked correctly
[ $VERBOSITY -ge $LOG_DEBUG ] && echo "Page $page: Computing embedded image resolution"
# get width / height of PDF page
@@ -208,15 +215,22 @@ while read pageSize ; do
mv "$curHocr.html" "$curHocr"
# embed text and image to new pdf file
[ $VERBOSITY -ge $LOG_DEBUG ] && echo "Page $page: Embedding text in PDF"
if [ "$PREPROCESS_CLEANINPDF" -eq "1" ]; then
image4finalPDF="$curImgPixmapClean"
else
image4finalPDF="$curImgPixmapDeskewed"
fi
[ $VERBOSITY -ge $LOG_DEBUG ] && echo "Page $page: Embedding text in PDF"
! python hocrTransform.py -r $dpi -i "$image4finalPDF" "$curHocr" "$curOCRedPDF" \
&& echo "Could not create PDF file from \"$curHocr\". Exiting..." && exit $EXIT_OTHER_ERROR
# if requested generate special debug PDF page with visible OCR text
if [ $DEBUG_MODE -eq "1" ] ; then
[ $VERBOSITY -ge $LOG_DEBUG ] && echo "Page $page: Embedding text in PDF (debug page)"
! python hocrTransform.py -b -r $dpi "$curHocr" "$curOCRedPDFDebug" \
&& echo "Could not create PDF file from \"$curHocr\". Exiting..." && exit $EXIT_OTHER_ERROR
fi
# delete temporary files created for the current page
# to avoid using to much disk space in case of PDF files having many pages
if [ $KEEP_TMP -eq 0 ]; then
@@ -229,6 +243,7 @@ while read pageSize ; do
# go to next page of the pdf
cpt=$(($cpt+1))
done < "$FILE_SIZE_PAGES"
@@ -262,7 +277,7 @@ grep -i "Status.*not valid" "$FILE_VALIDATION_LOG" && pdf_valid=0
grep -i "Status.*Not well-formed" "$FILE_VALIDATION_LOG" && pdf_valid=0
[ $pdf_valid -eq 1 ] && echo "Output file: The generated PDF/A file is VALID" \
|| echo "Output file: The generated PDF/A file is INVALID"
[ $VERBOSITY -ge $LOG_DEBUG ] && cat "$FILE_VALIDATION_LOG"