1 files changed, 3 insertions, 3 deletions
diff --git a/mkindex.pl b/mkindex.pl
index d9dbbe0..6bee4d2 100755
--- a/mkindex.pl
+++ b/mkindex.pl
@@ -132,7 +132,7 @@ Show the manpage.
 Create an index with all TIFF files in the current directory; don't save
 the index, but pipe it to display(1).
 
-=item mkindex.pl -b '25:RGBA(255,0,0,.5)' -f ':RGBA(0,0,255,.33)' --s_srs=epsg:3067 *.tif index.tif
+=item mkindex.pl -b '25:RGBA(255,0,0,.5)' -f ':RGBA(0,0,255,.66)' --s_srs=epsg:3067 *.tif index.tif
 
 Assume all map to be projected in EPSG:3067. Draw a 25-pixels wide, 50%
 transparent red border around each tile, and write the caption in 67%
@@ -530,8 +530,8 @@ sub annotate {
     my ($r, $g, $b, $a) = $pix->QueryColor( $config{bordercolor} );
     my $max = (2 << ($pix->Get('depth') - 1)) - 1.;
     undef $pix;
-    ($r,$g,$b,$a) = map { ($_ * 100. / $max).'%' } ($r,$g,$b,$a);
-    my ($b_rgb, $b_alpha) = ("RGB($r,$g,$b)", "GRAY($a)");
+    ($r,$g,$b,$a) = map { $_ * 100. / $max } ($r,$g,$b,$a);
+    my ($b_rgb, $b_alpha) = ("RGB($r%,$g%,$b%)", 'GRAY('.(100-$a).'%)');
 
     my $rgb= Image::Magick::->new( size => "${width}x${height}" );
     $rgb->Read( 'xc:none' );