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-rw-r--r--extras/mkocrpdf.sh22
-rw-r--r--extras/mkocrtxt.sh2
2 files changed, 15 insertions, 9 deletions
diff --git a/extras/mkocrpdf.sh b/extras/mkocrpdf.sh
index 9113963..1ec9a06 100644
--- a/extras/mkocrpdf.sh
+++ b/extras/mkocrpdf.sh
@@ -13,31 +13,37 @@ echo 'tessedit_create_hocr 1' > hocr
for i in `ls *png`
do
+ echo "$i"
+
# create a much bigger version of the page image
width=`identify "$i" | awk '{print $3}' | sed 's/x.*//'`
bigwidth=`expr $width \* 4`
- convert "$i" -geometry ${bigwidth}x "$i.big.png"
+ convert "$i" -geometry ${bigwidth}x "$i.big.tif"
# scan the page image
- tesseract "$i.big.png" "$i.big.png" hocr 2>&1 | sed '/Tesseract Open Source OCR Engine/d'
+ tesseract "$i.big.tif" "$i.big.tif" hocr 2>&1 | sed '/Tesseract Open Source OCR Engine/d'
# this reduces all bbox information to match the original image size
- sedrule=`cat "$i.big.png.html" \
+ sedrule=`cat "$i.big.tif.html" \
| sed -e 's/</\n/g' \
| sed -e '/bbox/!d' -e 's/.*bbox//g' -e 's/".*//g' -e "s/'.*//g" \
| awk '{ printf("s/bbox %d %d %d %d/bbox",$1,$2,$3,$4);
- for(i=1;i<5;i++) printf(" %d", $i/4);
+ for(a=1;a<5;a++) printf(" %d", $a/4);
printf("/g\n")}'`
- sed -e 's/\.big\.png//g' -e "$sedrule" < "$i.big.png.html" > "$i.html"
+ sed -e 's/\.big\.tif//g' -e "$sedrule" < "$i.big.tif.html" > "$i.html"
# combine the image and hocr into a pdf page
- # Note: hocr2pdf has a habit of segfaulting, so fall back to convert
- hocr2pdf -i "$i" -o "$i.pdf" < "$i.html" || convert "$i" "$i.pdf"
+ # Note: hocr2pdf has a habit of segfaulting, so fall back to convert.
+ # also, it tends to complain about the quality of tesseract's
+ # hocr output, which it's best to silence here.
+ hocr2pdf -i "$i" -o "$i.pdf" < "$i.html" >/dev/null 2>&1 || convert "$i" "$i.pdf"
# remove working files
- rm -f "$i.big.png" "$i.big.png.html" "$i.html"
+ rm -f "$i.big.tif" "$i.big.tif.html" "$i.html"
done
+echo book.pdf
+
# cat the pdf pages together
pdftk *pdf cat output book.pdf
rm -f [0-9]*pdf hocr
diff --git a/extras/mkocrtxt.sh b/extras/mkocrtxt.sh
index e683459..497f8a7 100644
--- a/extras/mkocrtxt.sh
+++ b/extras/mkocrtxt.sh
@@ -11,7 +11,7 @@
# converted to tiff format, so that they're readable by
# any version of tesseract.
-for i in `ls *tif`
+for i in `ls *png`
do
echo "$i"