A simple script for displaying images in terminal

img

#!/bin/bash
#
# z3bra -- 2014-01-21
# modified by ArchieT 2015-07-04

test -z "$1" && exit
test -z "$2" && x=5
test -z "$2" || x=$2
test -z "$3" && y=20
test -z "$3" || y=$3
test -z "$4" && scale=100
test -z "$4" || scale=$4

W3MIMGDISPLAY="/usr/lib/w3m/w3mimgdisplay"
FILENAME=$1
FONTH=19  #14 # Size of one terminal row
FONTW=10    #8  # Size of one terminal column
COLUMNS=`tput cols`
LINES=`tput lines`

read width height <<< `echo -e "5;$FILENAME" | $W3MIMGDISPLAY`

max_width=$(($FONTW * $COLUMNS))
max_height=$(($FONTH * $(($LINES - 2)))) # substract one line for prompt

if test $width -gt $max_width; then
height=$(($height * $max_width / $width))
width=$max_width
fi
if test $height -gt $max_height; then
width=$(($width * $max_height / $height))
height=$max_height
fi

ulwidth=$(($width * $scale / 100))
ulheight=$(($height * $scale / 100))

w3m_command="0;1;$x;$y;$ulwidth;$ulheight;;;;;$FILENAME\n4;\n3;"

tput cup $(($height/$FONTH)) 0
echo -e $w3m_command|$W3MIMGDISPLAY