From ca561223546a7e8acd055d5b2114869dd88f5114 Mon Sep 17 00:00:00 2001 From: giraffedata Date: Tue, 28 Mar 2017 15:34:36 +0000 Subject: Copy Development as new Advanced git-svn-id: http://svn.code.sf.net/p/netpbm/code/advanced@2932 9d0c8265-081b-0410-96cb-a4ca84ce46f8 --- test/jpeg-roundtrip.test | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100755 test/jpeg-roundtrip.test (limited to 'test/jpeg-roundtrip.test') diff --git a/test/jpeg-roundtrip.test b/test/jpeg-roundtrip.test new file mode 100755 index 00000000..1afc5423 --- /dev/null +++ b/test/jpeg-roundtrip.test @@ -0,0 +1,21 @@ +#! /bin/bash +# This script tests: pnmtojpeg jpegtopnm +# Also requires: pnmpsnr + +# TODO: threshold has been determined without much thought. +# Observed pnmpsnr output: 56.20 58.26 49.38 +# A small margin has been added to the above numbers. + +# Should print 3 1 1 1 three times + +pnmtojpeg testimg.ppm | jpegtopnm | \ + pnmpsnr -machine - testimg.ppm |\ + awk '{printf("%3d %1d %1d %1d\n",NF,$1>55.0,$2>57.0,$3>48.0)}' + +pnmtojpeg testimg.ppm -opt | jpegtopnm | \ + pnmpsnr -machine - testimg.ppm |\ + awk '{printf("%3d %1d %1d %1d\n",NF,$1>55.0,$2>57.0,$3>48.0)}' + +pnmtojpeg testimg.ppm -progressive | jpegtopnm | \ + pnmpsnr -machine - testimg.ppm |\ + awk '{printf("%3d %1d %1d %1d\n",NF,$1>55.0,$2>57.0,$3>48.0)}' \ No newline at end of file -- cgit 1.4.1