graphics/deskew: Added (cli tool for deskewing text images).

Signed-off-by: David Spencer <idlemoor@slackbuilds.org>

graphics/deskew/README

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+Deskew is a command line tool for deskewing scanned text documents.  It
+uses Hough transform to detect "text lines" in the image. As an output,
+you get an image rotated so that the lines are horizontal.

graphics/deskew/deskew.SlackBuild

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+#!/bin/sh
+
+# Slackware build script for deskew
+
+# Copyright 2017, Alexander Verbovetsky, Moscow, Russia
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+PRGNAM=deskew
+VERSION=${VERSION:-1.20}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG/usr/bin/ $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+unzip -d $PRGNAM-$VERSION $CWD/$PRGNAM-${VERSION/./}.zip
+cd $PRGNAM-$VERSION/Deskew
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+chmod 755 compile.sh
+./compile.sh
+
+install -m 0755 -o root -g root Bin/deskew $PKG/usr/bin/
+
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
+  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a Readme.md $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}

graphics/deskew/deskew.info

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+PRGNAM="deskew"
+VERSION="1.20"
+HOMEPAGE="http://galfar.vevb.net/deskew"
+DOWNLOAD="https://bitbucket.org/galfar/app-deskew/downloads/deskew-120.zip"
+MD5SUM="fa4d309b7b041781658b251dad1b349f"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES="fpc"
+MAINTAINER="Alexander Verbovetsky"
+EMAIL="alik@ejik.org"

graphics/deskew/slack-desc

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+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+      |-----handy-ruler------------------------------------------------------|
+deskew: deskew (command line tool for automatic deskewing text images)
+deskew:
+deskew: Deskew is a command line tool for deskewing scanned text documents.
+deskew: It uses Hough transform to detect "text lines" in the image. As an
+deskew: output, you get an image rotated so that the lines are horizontal.
+deskew:
+deskew: Homepage: http://galfar.vevb.net/deskew
+deskew: Development: https://bitbucket.org/galfar/app-deskew
+deskew:
+deskew:
+deskew: