png-verify.pl: use Unit PixelsPerCentimeter

[pve-docs.git] / png-verify.pl

diff --git a/png-verify.pl b/png-verify.pl
index 248f9fb482ba84f3a0f10d9f683a5bb8d6f3a2fe..8eb661139f88e3cd9f91d42d97dab034368313fb 100755 (executable)
--- a/png-verify.pl
+++ b/png-verify.pl
@@ -6,11 +6,11 @@ use warnings;
 my $infile = shift ||
     die "no input file specified\n";
 
-my $dpi = 146; # expected
+my $dpcm = 58; # expected
 
-my $tmp = `identify -units PixelsPerInch -format '%x x %y' $infile`;
+my $tmp = `identify -units PixelsPerCentimeter -format '%x x %y' $infile`;
 
-die "got unexpected DPI density '$tmp' (fix with png-cleanup.pl)\n"
-    if $tmp ne "$dpi x $dpi";
+die "got unexpected density '$tmp' (fix with png-cleanup.pl)\n"
+    if $tmp ne "$dpcm x $dpcm";
 
 exit 0;