// Generate the Spine Image
$cmd = " -size 200x40 xc:lightblue ".
"-pointsize 20 -gravity north -annotate +5+0 \"Rubblewebs\" ".
" -pointsize 10 -gravity south -annotate +0+0 \"Website design\" ".
" -stroke blue -strokewidth 2 -draw \"line 30,0 30,40\" -rotate -90 ";
  
exec("convert $cmd spine.png ");

// Generate the front cover - text and image
$cmd =" -size 150x200 xc:lightblue ".
"  -fill black -pointsize 20 -gravity north -annotate +0+5 \"Rubblewebs\" ".
"  -fill blue -pointsize 15 -gravity northeast -annotate +5+28 \"Box Set\" ".
" -fill black -pointsize 15 -gravity south -annotate +0+5 \"Website design\" ".
" -stroke blue -strokewidth 2 -draw \"line 0,169 150,169\" ".
" ( http://www.rubblewebs.co.uk/images/logo.png -resize 100x100 ) ".
" -gravity center -compose multiply -composite ";
  
exec("convert $cmd front.png ");

// Distort both images and merge together.
$cmd =" spine.png -virtual-pixel background  -background none ".
" +distort Perspective \"0,0 -40,20  0,199 -40,179  39,199 0,199  39,0 0,0\" ".
" ( front.png ".
" +distort Perspective \"0,0 0,0  0,199 0,199  149,199 99,169  149,0 99,30\" ".
" ) -background none -layers merge +repage -trim ";

exec("convert $cmd box_set.png ");
  
// Delete the tempory images
$delete = array( 'spine.png','front.png' );
foreach ( $delete as $value ) {
    unlink( $value );
}