Your message dated Sun, 19 Sep 2021 14:25:01 +0000
with message-id <[email protected]>
and subject line Bug#987057: fixed in gscan2pdf 2.12.3-1
has caused the Debian Bug report #987057,
regarding gscan2pdf: fixes to hOCR
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)
--
987057: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=987057
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: gscan2pdf
Version: 2.11.0-1
Severity: wishlist
Tags: patch upstream
Hi,
please find attached 3 patches improving hOCR support.
- recognize more tags when reading hOCR
In addition this also helps for rotated texts (in a separate report)
- preserve more properties when writing hOCR
- fix-indentation of intermediate non-leaf elements
The patches are against upstream's version 2.11.2
Please consider incorporating them into gscan2pdf's next version
Thanks in advance
Peter
-- System Information:
Debian Release: bullseye/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 5.10.0-5-amd64 (SMP w/12 CPU threads)
Kernel taint flags: TAINT_CRAP
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages gscan2pdf depends on:
ii imagemagick 8:6.9.11.60+dfsg-1
ii imagemagick-6.q16 [imagemagick] 8:6.9.11.60+dfsg-1
ii libconfig-general-perl 2.63-1
ii libdate-calc-perl 6.4-1.1
ii libfilesys-df-perl 0.92-6+b6
ii libgoocanvas2-perl 0.06-2
ii libgtk3-imageview-perl 6-1
ii libgtk3-perl 0.038-1
ii libgtk3-simplelist-perl 0.21-1
ii libhtml-parser-perl 3.75-1+b1
ii libimage-magick-perl 8:6.9.11.60+dfsg-1
ii libimage-sane-perl 5-1+b1
ii liblist-moreutils-perl 0.430-2
ii liblocale-codes-perl 3.66-1
ii liblocale-gettext-perl 1.07-4+b1
ii liblog-log4perl-perl 1.54-1
ii libossp-uuid-perl [libdata-uuid-perl] 1.6.2-1.5+b9
ii libpdf-builder-perl 3.021-2
ii libproc-processtable-perl 0.59-2+b1
ii libreadonly-perl 2.050-3
ii librsvg2-common 2.50.3+dfsg-1
ii libset-intspan-perl 1.19-1.1
ii libtiff-tools 4.2.0-1
ii libtry-tiny-perl 0.30-1
hi sane-utils 1.0.31-4pm1
Versions of packages gscan2pdf recommends:
ii djvulibre-bin 3.5.28-1
ii gocr 0.52-3
ii pdftk-java [pdftk] 3.2.2-1
ii tesseract-ocr 4.1.1-2.1
ii unpaper 6.1-2+b2
ii xdg-utils 1.1.3-4
gscan2pdf suggests no packages.
-- no debconf information
>From f9d32fbeb11619637ea6263881b6333afc4ebeaf Mon Sep 17 00:00:00 2001
From: Peter Marschall <[email protected]>
Date: Wed, 14 Apr 2021 17:41:56 +0200
Subject: [PATCH 1/3] Bboxtree: preserve more information in to_hocr()
Keep 'textangle' and 'baseline' properties in to_hocr() method.
Signed-off-by: Peter Marschall <[email protected]>
---
lib/Gscan2pdf/Bboxtree.pm | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/Gscan2pdf/Bboxtree.pm b/lib/Gscan2pdf/Bboxtree.pm
index 59edaf61..2ee47834 100644
--- a/lib/Gscan2pdf/Bboxtree.pm
+++ b/lib/Gscan2pdf/Bboxtree.pm
@@ -514,6 +514,12 @@ EOS
$string .= $SPACE x ( 2 + $bbox->{depth} ) . "<$tag class='$type'";
if ( defined $bbox->{id} ) { $string .= " id='$bbox->{id}'" }
$string .= " title='bbox $x1 $y1 $x2 $y2";
+ if ( defined $bbox->{baseline} ) {
+ $string .= '; baseline ' . join( $SPACE, @{ $bbox->{baseline} } );
+ }
+ if ( defined $bbox->{textangle} ) {
+ $string .= "; textangle $bbox->{textangle}";
+ }
if ( defined $bbox->{confidence} ) {
$string .= "; x_wconf $bbox->{confidence}";
}
--
2.30.2
>From 11ed93483c800082525cd6a3afcfb08f0e15be9c Mon Sep 17 00:00:00 2001
From: Peter Marschall <[email protected]>
Date: Wed, 14 Apr 2021 18:02:16 +0200
Subject: [PATCH 2/3] Bboxtree: recognize more hOCR elements in _hocr2boxes()
Recognize additional elements 'ocr_header', 'ocr_footer', 'ocr_caption'
as well as their 'ocrx_...' counterparts when parsing hOCR into a Bboxtree
Recent versions of tesseract seem to generate some of these elements
instead of 'ocrx_line'.
As the line-like elements contain impoartant information, gscan2pdf needs
to recognize them, in order to
* properly diplay the OCR'ed text
* preserve as much information as possible when storing hOCR files
Signed-off-by: Peter Marschall <[email protected]>
---
lib/Gscan2pdf/Bboxtree.pm | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/lib/Gscan2pdf/Bboxtree.pm b/lib/Gscan2pdf/Bboxtree.pm
index 2ee47834..e8fa83d3 100644
--- a/lib/Gscan2pdf/Bboxtree.pm
+++ b/lib/Gscan2pdf/Bboxtree.pm
@@ -138,6 +138,15 @@ sub _hocr2boxes {
when (/_par$/xsm) {
$data->{type} = 'para';
}
+ when (/_header$/xsm) {
+ $data->{type} = 'header';
+ }
+ when (/_footer$/xsm) {
+ $data->{type} = 'footer';
+ }
+ when (/_caption$/xsm) {
+ $data->{type} = 'caption';
+ }
when (/_line$/xsm) {
$data->{type} = 'line';
}
--
2.30.2
>From 32b921376cb61ab8750ecf11c2152ec30517a579 Mon Sep 17 00:00:00 2001
From: Peter Marschall <[email protected]>
Date: Wed, 14 Apr 2021 18:41:47 +0200
Subject: [PATCH 3/3] Bboxtree: fix indentation of intermediate closing tags in
to_hocr()
When writing hOCR files using to_hocr(), make sure closing tags
of intermedate non-leaf elements are correctly indented, even
if sibling elements follow.
This makes sure to also keep the "visual" structure of hOCR files
generated by the OCR engines.
Signed-off-by: Peter Marschall <[email protected]>
---
lib/Gscan2pdf/Bboxtree.pm | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/lib/Gscan2pdf/Bboxtree.pm b/lib/Gscan2pdf/Bboxtree.pm
index e8fa83d3..4c267e02 100644
--- a/lib/Gscan2pdf/Bboxtree.pm
+++ b/lib/Gscan2pdf/Bboxtree.pm
@@ -495,8 +495,10 @@ EOS
while ( my $bbox = $iter->() ) {
if ( defined $prev_depth ) {
if ( $prev_depth >= $bbox->{depth} ) {
+ if (@tags) { $string .= '</' . pop(@tags) . ">\n" }
+ $prev_depth--;
while ( $prev_depth-- >= $bbox->{depth} ) {
- $string .= '</' . pop(@tags) . ">\n";
+ $string .= $SPACE x ( 2 + $prev_depth + 1 ) . '</' .
pop(@tags) . ">\n";
}
}
else {
--
2.30.2
--- End Message ---
--- Begin Message ---
Source: gscan2pdf
Source-Version: 2.12.3-1
Done: Jeffrey Ratcliffe <[email protected]>
We believe that the bug you reported is fixed in the latest version of
gscan2pdf, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Jeffrey Ratcliffe <[email protected]> (supplier of updated gscan2pdf package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Fri, 17 Sep 2021 19:26:26 +0200
Source: gscan2pdf
Architecture: source
Version: 2.12.3-1
Distribution: unstable
Urgency: medium
Maintainer: Jeffrey Ratcliffe <[email protected]>
Changed-By: Jeffrey Ratcliffe <[email protected]>
Closes: 987057 987058 987059 987211 987212
Changes:
gscan2pdf (2.12.3-1) unstable; urgency=medium
.
* New upstream release
Closes: #987057 (gscan2pdf: fixes to hOCR)
Closes: #987058 (gscan2pdf: fix displaying rotated text)
Closes: #987211
(gscan2pdf: separate tab for Post-processing options in Scan dialog)
Closes: #987212 (gscan2pdf: visually align 'Threshold before OCR')
Closes: #987059 (gscan2pdf: POD and manpage improvements)
* Update depends libpdf-builder-perl to require 3.022 or better
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