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== Project Description ==
Write reftests to compare images in order to deal with floating point tolerance. This includes dealing with things like Monitor Profiles, profiles in JPEG (i.e., JPEGs get changed based on colour profile info). See discussion of colour profiles in Firefox 3 here. It would be useful to be able to compare to PNGs with a reftest, perhaps creating an image diff tool, where pixels outside a floating point tolerance (> 0.n) would somehow be highlighted so you can see what is different. Done.
This will require some graphics and image knowledge (i.e., Photoshop, what colour is on a computer, etc).
[[user:Evmarbella|Ezadkiel Villarico Marbella]]
[http://zadkielm.blogspot.com/search/label/reftest Project Blog] Up-To-Date Information
[http://zadkielm.blogspot.com/2008/10/pixel-reftesting-with-profiles.html Colour Profile Reftest 0.1] Gained basic knowledge of reftesting with colour profiles
[http://zadkielm.blogspot.com/2008/11/colour-profile-reftest-02and-then-there.html Colour Profile Reftest 0.2] Created tests and filed bugs
[http://zadkielm.blogspot.com/2008/12/reftest-03-manifesting-bug-459617.html Colour Profile Reftest 0.3] Research on tracking down bug and test manifests
== Project Contributor(s) ==
NOTE: only Project Leader(s) should add names here. You '''can’t''' add your own name to the Contributor list.
If anything is unclear feel free to edit the instructions or msg me on IRC or email me.
Instruction <br />
notes from: <br />
http://zadkielm.blogspot.com/2008/09/firefox-and-reference-testing-reftest.html <br />
http://zadkielm.blogspot.com/search/label/reftest <br />
1 <br />
Have a build of firefox on the linux with <br />
ac_add_options --enable-tests <br />
on the mozconfig <br />
2 <br />
download the reftest <br />
[http://zenit.senecac.on.ca/wiki/imgs/Pngsuite-colorprofiles-failedtest-contrib.zip contrib-failedtest] <br />
unzip it in your home folder.<br />
open terminal<br />
and <br />
cd ~/pngsuite-colorprofiles-failedtest<br />
run the reftest <br />
~/pngsuite-colorprofiles$ ~/src/obj*/dist/bin/firefox --no-remote -reftest -P testfirefox1(replace with test Profile) ./failedPixelTestAdobe1998.list | grep REFTEST > failedPixeltestAdobe1998output(insert Linux OS).txt
3<br />
open the failedPixelAdobe1998output*.txt<br />
Outcome:<br />
It should failed and it should have <br />
the URI data of the tested pixels/images.<br />
see <br />
'fail line output' <br />
http://zadkielm.blogspot.com/2008/09/reftesting-testing-continues.html <br />
Upload the text file on the zenit wiki <br />
(failedPixeltestAdobe1998output(insert Linux OS).txt ) <br />
Please include your Processor/OS information. <br />
ex. <br />
Processor Speed and Brand..., <br />
Version of Linux. <br />
and add your name on the contributions. <br />
'''Please post your test results here:'''
{| border="1"
|-
! Date
! IRC Nick
! Platform
! Firefox Version
! Processor
! Result
|-
| 19-Oct-2008
| ezadkiel
| Ubuntu Release 8.04(hardy) Kernel Linux 2.6.24-19-generic GNOME 2.22.3
| Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1b2pre) Gecko/20081019 Minefield/3.1b2pre
| Intel Core 2 CPU T7400 @ 2.16 GHz
| it passed [http://zenit.senecac.on.ca/wiki/imgs/FailedPixeltestAdobe1998outputUbuntu.txt.zip test-result]
|-
|}
== Project Details ==
[http://mxr.mozilla.org/mozilla/source/layout/tools/reftest/README.txt REFTEST READ ME]
0.1 Release
Isolated Failed test.
[http://zenit.senecac.on.ca/wiki/imgs/Pngsuite-colorprofiles-failedtest.zip failedtests0.1]
'''TechNote001:'''
'''Technote002:'''
'''Technote003:'''
What are ways to embed colour profiles into images?
Photoshop does it.Preview in Mac OSX does it which meansyou can use Automator to apply profiles on multiple images
'''Technote004Technote005:'''Create Images with sRGB colour profile embedded.
'''Technote006Technote007:'''A way to do this Draw the image into a canvasUse URI scheme for reftest [http://developeren.mozillawikipedia.org/Enwiki/Canvas_tutorialData:Using_imagesThen call toDataURL or getPixelData to get the pixels out.It doesn't reverse-colour-correct the data read from canvas methods which is incorrect, but useful. Reftests already give a data URL when the test fails._URI_scheme DATA URI Scheme Wiki]
''toDataURL'Techtool002:'''<br /> [http://software.hixie.ch/utilities/cgi/data/data URI kitchen] [http://www.scalora.org/projects/uriencoder/ URI Encoder]
bug 459617 details
https://bugzilla.mozilla.org/show_bug.cgi?id=459617
- first figure out the exact pixel that'''Technote007:''' Use URI scheme for reftest [http://en.wikipedia.org/wiki/Data:_URI_scheme DATA URI Scheme Wiki] s different
-and see if you can confirm that the issue is within LCMS, or whether it'''Techtool001:''' layout/tools/reftest/reftest-to-html.pls actually somewhere else
-if it's an LCMS issue if you can get the lcms code to say that it''Techtool002:'''<br /> [http://software.hixie.ch/utilities/cgi/data/data URI kitchen] [http://www.scalora.org/projects/uriencoder/ URI Encoder]s outputting different pixels on different platforms for the same input pixel and transform
== Project News ==
reading over notes etc.
- Sept 20/08
made more updates to notes and project page.
- Sept 22/08
Got a response from an email...one step closer to putting these pieces together.
Got some Goals...and Focus.
- Sept 26/08
Been testing thing for the past few days...trying to get the tests right.
- Sept 28/08
I think I got the tests right.
Profiles [[Image:ICCProfiles28Sept08.zip]]
- Oct 3/08
Reading on colours LAB vs RGB vs CMYK
Has a conclusion on [http://zadkielm.blogspot.com/2008/10/reftesting-colour-profiles-in-ubuntu.html the ubuntu]
Update the test [http://zenit.senecac.on.ca/wiki/imgs/Reftest-colorprofiles_04Oct08.zip updated tests]
- Oct 11/08
spent time isolating 2 pixels that were failing on the reftests in Ubuntu
tested to see if the suspected pixels were failing...yes they still fail.
[http://zadkielm.blogspot.com/2008/10/pixel-reftesting-with-profiles.html Pixels In Isolation]
simplified reftest to show failing pixel and reftest differences in GIMP
- Oct 12/08
filed a bug
[https://bugzilla.mozilla.org/show_bug.cgi?id=459617 bug#459617]
trying to narrow it down.
- Oct 19/08
how to test in different configurations.
- Nov 9/08
updating the test...it's too [http://zadkielm.blogspot.com/2008/11/hg-add-to-patches.html big]
- Nov 24/08
learning about hg queues
adding and importing folders and files patches.
looking at [https://bugzilla.mozilla.org/show_bug.cgi?id=463221 bug] comments particularly:
Yay, reftests!
A few tiny drive-by nits:
"pngsuite" is actually an official PNG test suite, so these should go under a
different name. Say, modules/libpr0n/test/reftest/png/color-profile/.
A single reftest.list manifest is fine, no need to break it into small chunks.
The readme could just be distilled down into plain test, and rolled into the
manifest as brief comments.
