1 #!/usr/bin/perl 2 # 3 # Test writing PNG images 4 # 5 # Contributed by Bob Friesenhahn <bfriesen (at] simple.dallas.tx.us> 6 # 7 BEGIN { $| = 1; $test=1; print "1..6\n"; } 8 END {print "not ok $test\n" unless $loaded;} 9 10 use Image::Magick; 11 $loaded=1; 12 13 require 't/subroutines.pl'; 14 15 chdir 't/png' || die 'Cd failed'; 16 17 # 18 # 1) Test Black-and-white, bit_depth=1 PNG 19 # 20 print( "1-bit grayscale PNG ...\n" ); 21 testReadWrite( 'input_bw.png', 'output_bw.png', q/quality=>95/, 22 '5a5b600153abaaf82dc9086272d01bedc4201d14b614c18cb4e9c6d1581c9023'); 23 24 # 25 # 2) Test monochrome image 26 # 27 ++$test; 28 print( "8-bit grayscale PNG ...\n" ); 29 testReadWrite( 'input_mono.png', 30 'output_mono.png', '', 31 'a8d79029f6ced36f904659dda5ea67a6bab5e602b1033aa29c7f1b45b35c1178'); 32 # 33 # 3) Test 16-bit Portable Network Graphics 34 # 35 ++$test; 36 print( "16-bit grayscale PNG ...\n" ); 37 testReadWrite( 'input_16.png', 38 'output_16.png', 39 q/quality=>55/, 40 'd4bed86abb1849f69f1a5afb7c5cf8798e8192ba228357f189c277198c14f5a0', 41 '4036b56c00d731a2865470815eabc177dc158af2abacb34ef95c7e716ec2da60' ); 42 # 43 # 4) Test pseudocolor image 44 # 45 ++$test; 46 print( "8-bit indexed-color PNG ...\n" ); 47 testReadWrite( 'input_256.png', 48 'output_256.png', 49 q/quality=>54/, 50 '26687d6be46b4e1ca5201a47caa7dad660245c5f4517835ab6e19f2f84fc4a03' ); 51 # 52 # 5) Test truecolor image 53 # 54 ++$test; 55 print( "24-bit Truecolor PNG ...\n" ); 56 testReadWrite( 'input_truecolor.png', 57 'output_truecolor.png', 58 q/quality=>55/, 59 '76f43f03e51c8608bfca7ff96d3936148ad855782968a017ea03cccbeebff64d' ); 60 # 61 # 6) Test Multiple-image Network Graphics 62 # 63 ++$test; 64 print( "MNG with 24-bit Truecolor PNGs ...\n" ); 65 testReadWrite( 'input.mng', 66 'output.mng', 67 q/quality=>55/, 68 '5a883e67c29d7bb27897ec7a3f3cb3fb0330fb43aef4360e8314503cb37fae09' ); 69
