Free PC Test Paterns

[Alaric]

Hi There,

Just found this :
http://www.colorvision.com/sup_dl-upgrades.shtml

Bottom of the page is a 463K prog that has a lot of very useful test paterns, particularly useful i'd guess if you run a HTPC set-up.

Nothing particularly new or groundbreaking, however very usefriendly and nice to have them in one location !

Strangly its not on the colorfacts website though !!!

Cya,
Lee

[Mad Mr H]

Its NEW , Dec 2005 release date......

So its the norm for the bigger websites to run years behind what they actually produce.....

Take Nvidia - still showing beta drivers 3 releases behind the current ones.....

There was a thread of test patterns I added some to not that long ago (6 months!) will try and find it and add this in as well.

Thanks, its so nice to have hundreds of pairs of eyes watching the net for these things.....

[Mad Mr H]

More direct link

http://www.colorvision.com/downloads...stPatterns.zip

[paublo]

Thanks for this, usefull stuff...

Cheers
Paul

[The Nightfly]

Yes, many thanks to both posters for the links. Are there any downloadable patterns out there for measuring gamma?

Allan

[Mad Mr H]

heres another that I use a lot

http://www.freepctech.net/files/Nokia.zip

when you say gamma are you looking for varying IRE patterns?

[The Nightfly]

Thanks again.

when you say gamma are you looking for varying IRE patterns?

Not really (or at last I don't think so). I'd like to be able to confirm the end-to-end gamma of my display chain - i.e HTPC+Projector. At the moment I'm using a standard gamma setting in the projector labelled 'Cinema' and adjusting gamma on the PC in incremental (plus or minus) factors using Powerstrip and simply eye-balling the results. I've got it set at a point where I *think* it looks right but it would be nice to know what I've ended up with, i.e is it 2.2, 2.3, 2.4, or whatever?

Are there any test patterns that would either give me an indication of what my overall gamma is set to?

Allan

[Mad Mr H]

You are doing this by eye?

I thought you really needed test kit for this?

[Chris Frost]

One of the test discs I have has a gamma pattern - I thinks it's AVIA.

It's a pinstriped grey background with several blocks of grey at various brightnesses to represent Video Gamma at 9 different settings. You're supposed to cross your eyes to make the picture go out of focus, then judge which gamma block is the same brightness as the background. That's probably the closest you can get to estimating a Gamma setting.

There was a Powerbuy on Avia on these forums a little while ago. The disc was something like £20, down from £30 usually.

[The Nightfly]

MrH,

Yes, by eye, but it would be nice to confirm that my eyes are good enough to get me into the right ball-park.

Chris,

I might have to invest, however, I prefer free to £20 wherever possible.

Regards,
Allan

[Chris Frost]

Allan, there's lots of other stuff on AVIA - complete audio test tones + full video set-up t/patterns and some great tutorials. It's worth a punt.

[The Nightfly]

Chris,

I know, I was just jesting

I really ought to buy a copy. When you add up the total cost of a decent HT setup, 20 quid barely registers a blip.

Allan.

[Alaric]

Hi There,

Found a couple of other useful tools.

http://www.prall.net/tools/colorcop/
Colour Cop is a little app that has a pippet dropper that you can pick up and will give you RGB values for whatever you are hovering over. Useful for VMR9 based checking of absolute values of black/White and RGB values to check that your player is acting corectly.

http://www.mooneyass.com/testpatterns/

Has another variety of test paterns and i was pointed there from AVS for the philips one, however i found Align. A realy simple progrm with oodles of options for generation of lines, boxes and circles, as such with everything turned on and set to white and 16:9 i managed to get an excelent convergence even on blue....The diagonals help by almost telling you which way to converge. Also helped a bit on focusing as it is finer detail than Avia etc at the res i was running.

My next problem is getting something less than a pixel in width ???? (maybe higher res ?)

Cya,
Lee

[Mad Mr H]

A page full of useful tests.

the Ptest is very good at bottom of page.....

http://www.cyviz.com/Utilities.htm

[Mad Mr H]

I just went back to this page again.......

http://www.mooneyass.com/testpatterns/

Thought I would mention it again for those that are new here, or forgot to download the first time...........