graphics/focus-stack: Added (focus stacking).

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

graphics/focus-stack/README

@@ -0,0 +1,14 @@
+focus-stack is an application for fast and easy focus stacking.
+
+It takes a series of photographs captured from the same location but
+a different focus distances and then combines them to create a single
+photograph so that the complete subject is in focus. This is commonly
+called extended depth of field, or focus stacking. Typical use is for
+microscope photography where it is difficult to obtain large enough
+depth of field to cover the whole subject. The focus stacking
+algorithm used was invented and first described in "Complex Wavelets
+for Extended Depth-of-Field: A New Method for the Fusion of
+Multichannel Microscopy Images" by B. Forster, D. Van De Ville, J.
+Berent, D. Sage and M. Unser. The application also uses multiple
+algorithms from OpenCV library. Most importantly, findTransformECC
+is used to align the source images.

graphics/focus-stack/focus-stack.SlackBuild

@@ -0,0 +1,117 @@
+#!/bin/bash
+
+# Slackware build script for focus-stack
+
+# Copyright 2024 Pedro Mendes, Farmington CT
+# 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.
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PRGNAM=focus-stack
+VERSION=${VERSION:-1.4}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+PKGTYPE=${PKGTYPE:-tgz}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
+# the name of the created package would be, and then exit. This information
+# could be useful to other scripts.
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+elif [ "$ARCH" = "aarch64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+else
+  SLKCFLAGS="-O2"
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
+cd $PRGNAM-$VERSION
+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 {} \;
+
+# This only uses a Makefile, no config step
+CFLAGS="$SLKCFLAGS" \
+CXXFLAGS="$SLKCFLAGS" \
+DESTDIR="$PKG" \
+prefix=/usr \
+make
+
+DESTDIR="$PKG" \
+prefix=/usr \
+make install
+
+# Move man pages
+mkdir -p $PKG/usr/man
+mv $PKG/usr/share/man/man1 $PKG/usr/man/
+rmdir $PKG/usr/share/man
+
+# Strip binaries and libraries
+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
+
+find $PKG/usr/man -type f -exec gzip -9 {} \;
+for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/imgs
+cp -a \
+  docs/focus-stack.html docs/focus-stack.md docs/Algorithms.md docs/imgs \
+  $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+# Copy examples into the package
+mkdir -p $PKG/usr/share/$PRGNAM
+cp -a examples $PKG/usr/share/$PRGNAM
+
+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

graphics/focus-stack/focus-stack.info

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+PRGNAM="focus-stack"
+VERSION="1.4"
+HOMEPAGE="https://github.com/PetteriAimonen/focus-stack"
+DOWNLOAD="https://github.com/PetteriAimonen/focus-stack/archive/1.4/focus-stack-1.4.tar.gz"
+MD5SUM="c7a6b7b0b5bd666199dba1823fd27cc2"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Pedro Mendes"
+EMAIL="pedro@gepasi.org"

graphics/focus-stack/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------------------------------------------------------|
+focus-stack: focus-stack (Fast and easy focus stacking)
+focus-stack:
+focus-stack: focus-stack takes a set of photos taken at different focus settings
+focus-stack: and combines them into one, selecting the sharpest source image for
+focus-stack: each pixel position. This is commonly called extended depth of field,
+focus-stack: or focus stacking. Typical use is for microscope photography where it
+focus-stack: is difficult to obtain large enough depth of field to cover the whole
+focus-stack: subject. This application uses OpenCV library and its OpenCL
+focus-stack: acceleration interface.
+focus-stack:
+focus-stack: