profilescan

#!/bin/bash
#
# Licensing:
#
# Copyright © Laurence Lumi 2017
# Licensed GNU General Public License v3
# which can be found here https://www.gnu.org/licenses/gpl-3.0.en.html
#

progname=`basename $0`
usage()
	{
	echo >&2 ""
	echo >&2 "$progname:" "$@"
        cat << MESSAGE1
        USAGE: $progname [-d] [-dd] [-l] [-s name] [-fb] [-p name] [-crop XxY+x+y] infile
USAGE: $progname [-h] [-help]

OPTIONS:

MESSAGE1
exit 1
	}
help()
{
    echo >&2 ""
    echo >&2 "$progname:" "$@"
    cat  >&2 << MESSAGE2

NAME: $progname 

PURPOSE: creates profile information for later use.


Arguments:

MESSAGE2
exit 1
}

function DEBUG()
{
 [ ! "$debug" -eq 0 ] &&  $@
}

tmpdir="./"
debug=0
tmpprefix=$tmpdir"_ps_"
comment="Processed with profilescan"
DEBUG echo -set comment "$comment"
prof_dir=$HOME/.scantools
mkdir -p "$prof_dir"

while [ $# -gt 0 ]
do
    # get parameters
    case "$1" in
        -h|-help)    # help information
            echo ""
            help
            ;;
        -d)	debug=1
            ;;
        -dd)	debug=2
            ;;
        -l)    # list profile
            ls $prof_dir
            exit 0
            ;;
        -s)    # show profile
            shift
            profile_name="$1"
            cat $prof_dir/$profile_name
            exit 0
            ;;
        -fb)	mode=filmbase
            ;;
        -p)    # profile name
            shift
            profile_name="$1"
            ;;
        -crop)    # crop value
            shift
            crop="-crop $1"
            ;;
        -)    # STDIN and end of arguments
            break
            ;;
        -*)    # any other - argument
            echo "--- UNKNOWN OPTION ---" $1
            usage
            ;;
        *)     # end of arguments
            break
            ;;
    esac
    shift   # next option
done

infile=$1

if [ -z $infile ]; then
    echo "must provide a filename"
    usage
fi
if [ ! -f "$infile" -o ! -r "$infile" ]; then
    echo "Cannot open: $infile"
    exit 1
fi

if [[ $infile =~ .*.tif$ ]]; then
    DEBUG echo assuming the input file being tif is saved in a linear colorspace, even though the metadata says otherwise
    CSPACE="-set colorspace RGB"
fi

DEBUG set -x;

if [ "$mode" = "filmbase" ]; then
    DEBUG echo mode = $filmbase
    
    # calculate the filmbase values 
    eval set -- `convert "$infile[0]" $CSPACE -strip \
        $crop\
        -format\
        "%[fx: mean.r ] %[fx: mean.g ] %[fx: mean.b ]"\
        info:`

    echo "Red:  " $1 $4 
    echo "Green:" $2 $5
    echo "Blue: " $3 $6
    r_base=$1
    g_base=$2
    b_base=$3

    if [ ! -z $profile_name ]; then 
        echo append data to profile $profile_name 
        DATE=`date '+%Y-%m-%d>%H:%M:%S'` 
        echo "Date FB_red GB_green FB_blue" >> "$prof_dir/$profile_name" 
        echo "$DATE $r_base $g_base $b_base" >> "$prof_dir/$profile_name" 
    fi

fi
exit 0