$diff = i_img_diff($img8->{IMG}, $cmp8->{IMG});
print "# diff $diff\n";
ok($diff == 0, "written image doesn't match read");
ok($img4->write(file=>'testout/t106_pal4.tif'), "writing 4-bit paletted");
ok(my $cmp4 = Imager->new->read(file=>'testout/t106_pal4.tif'),
"reading 4-bit paletted");
$diff = i_img_diff($img8->{IMG}, $cmp8->{IMG});
print "# diff $diff\n";
ok($diff == 0, "written image doesn't match read");
ok($img4->write(file=>'testout/t106_pal4.tif'), "writing 4-bit paletted");
ok(my $cmp4 = Imager->new->read(file=>'testout/t106_pal4.tif'),
"reading 4-bit paletted");