def check_art_similarity(item, imagepath, compare_threshold):
 with NamedTemporaryFile(delete=True) as f:
  art = extract(f.name, item)
  if art:
   cmd = 'convert {0} {1} -colorspace gray MIFF:- | compare -metric PHASH - null:'.format(syspath(imagepath), syspath(art))
   proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=(platform.system() != 'Windows'), shell=True)
   (stdout, stderr) = proc.communicate()
   if proc.returncode:
    if (proc.returncode != 1):
     log.warn(u'embedart: IM phashes compare failed for {0},                    {1}'.format(displayable_path(imagepath), displayable_path(art)))
     return
    phashDiff = float(stderr)
   else:
    phashDiff = float(stdout)
   log.info(u'embedart: compare PHASH score is {0}'.format(phashDiff))
   if (phashDiff > compare_threshold):
    return False
 return True

def check_art_similarity ( item , imagepath , compare_threshold ) : with NamedTemporaryFile ( delete = True ) as f : art = extract ( f . name , item ) if art : cmd = 'convert {0} {1} -colorspace gray MIFF:- | compare -metric PHASH - null:' . format ( syspath ( imagepath ) , syspath ( art ) ) proc = subprocess . Popen ( cmd , stdout = subprocess . PIPE , stderr = subprocess . PIPE , close_fds = ( platform . system ( ) != 'Windows' ) , shell = True ) ( stdout , stderr ) = proc . communicate ( ) if proc . returncode : if ( proc . returncode != 1 ) : log . warn ( u'embedart: IM phashes compare failed for {0},                    {1}' . format ( displayable_path ( imagepath ) , displayable_path ( art ) ) ) return phashDiff = float ( stderr ) else : phashDiff = float ( stdout ) log . info ( u'embedart: compare PHASH score is {0}' . format ( phashDiff ) ) if ( phashDiff > compare_threshold ) : return False return True
a boolean indicating if an image is similar to embedded item art .