Free calibration soft (non-excel) - Page 3

good point, I'll like to know about this too

Video levels are the same on PAL and NTSC (RGB 16-235). Both use the same YCbCr transformation formula as well. But, creating a mpeg stream and subsequently authoring a DVD that does not "mess with the colors" and produces the "right" colors is more of a challenge than one might think. I've tested it wrong on multiple occasions on other discs. I'd be more concerned about that than the PAL vs NTSC thing, personally. After all, even the highly popular AVIA (consumer version) has well known errors. On the other hand, no more accurate than the DIY colorimeter device probably is, the point is likely moot

27 or 33pF are both fines, as well as 56 to 100uF for the main electrolite Capacitor.
The three farnell references you list are all fine.


The software accomodate PAL/NTSC and HD ColorSpaces

At the moment the optionnal DVD iso image we have built is PAL only but an NTSC version will be there very soon, as well as an HD-DVD one

--Patrice

so once again.... can you outline the methodology for calibrating the sensor?

Hi Jim

The easiest way to reliably calibrate the sensor is to define a D65 white point on a projector, for example using Colorfacts or any other calibration tool. When you have a calibrated projector, capable of displaying D65 on IRE 100 (or any other level), just use it with HCFR sensor to build a reference conversion matrix ("étalon" in french). This reference file will be fine with any projector of the same type (trademark and model), and any HCFR sensor.

There is another way to make those "étalon", using DDE channels, and some people in the HCFR team use it to produce and check validity of those references. But it would be too long and complex to explain it here

Georges

2 Questions

Is it possible to use S2Fly w/ test patterns running from dvd player, how do I go about that?
I want to calibrate an HD CRT RPTV, do I use LCD/PROJ or CRT?
Do I remove the LCD attachment (green filter) when working w/ anything but LCD, I bought the Spyder2express?

Question to Laric, others may be curious aswell.

I was looking at the photodiode TCS230 pdf file and was wondering if a Hoya CM500 filter is required?

I see as standard it is normalized at 680nm and when filtered it is normalized at 530nm. Filtered the response looks cleaned up beyond 700nm. Of more concern is the 600nm to 700nm area where the red band and clear bands are quite different between filtered and unfiltered.

Comments?

I see also the second photodiode is not currently in use, but will. When is this likely to happen and in what way? Cross reference?

I'm planning on using the sensor to look at DIY screens(painted) with respect to what effects on calibration does various paints mixes cause.

I'm actually making 2 probes, 1 as a spare, but was wondering if there is provision within the software for running a pair of probes, so 2 reference points can be resulted at the same time. Near/far or center side viewing angles.

Regards
<^..^>Smokey Joe

Our probe is still under evolution/tunning, we plan to use the second sensor at a later stage, I can't yet comment how but one usage will be to use one filterered and not other, also to do band filtering...
At present you can use one or other to measure or both (to cross ref).
Beside the calibration thing, the only annoyance at the moment is some disturbance in measure due to IR. But that is only a problem on some projectors where buld tend to emit a bit too much IR. It can easily be filtered by an IR filter.


On the good news side, I can state we have made huge progress in multilanguage support and also in supporting the Spyder II... There may be a version available quite soon...

--Patrice

Anyone?

I have gotten good results with the filter on for CRT RPTV. THe CRT option seems to give poor results. Use LCD mode.

Yes, you can use a DVD player to display patterns with S2fly. Play the dvd and use a pc or laptop to run S2fly and take readings.

Thanks Laric, good news with language support. My 20 year old French phrase book is only good for coffee machines and flushing toilets

I might get the recommended hoya CM500 as it seems to remove the IR interference.

Will have more questions I'm sure once I finish my probes, just waiting on pic flashing and the board to be made.

<^..^>

Hello everybody

Actually, English support and Spyder II support are now in beta version... It works ! I think it will be soon available, and of course for free

Georges

sounds really great

Sounds very great!!! Is the Beta available for the public to do some testing?

Not yet, but will be shortly

--Patrice

spyder2 support will make alot of people really happy (and some less happy i could imagin)

(eagerly awaiting)

What about dtp-94 support? I have the sdk for that sensor (sold under the brand name of monaco optix XR), and it can be given away for free.

Best,
jeff

Yes, we assume so and it is also a lot handier for non DIY people.
Even thought, I'll stay with our sensor (but I assume discussions will come later)

We think th software (and hardware ) is pretty good and handy, it is likely we will have quite some chat about early multi-lingual versions as well as user interface, but trust me it is pretty cool.


Who knows...

--Patrice

Hi Jeff

Well, I'm already working on it, but I'd like to have any official information about this SDK, it would ease my work

Regards
Georges

Georges,
do you have the x-rite SDK? If you want it, pm me with an email address and I'll send you the tarball. This was given to me with X-rite's blessing on distributing it and/or using it however you want.

Best,
jeff

Good news, you have a PM

--Patrice

You have email ;-)

jeff

Many thanks Jeff, all received...

--Patrice

Thanks a lot Jeff. I will work on it next week, and try to produce a new beta version with DTP94 support.

And if anybody have other SDK for other devices, we would be very happy to work on them

Georges

If you look in the tarball, I believe that there's a sample for driving the sensor. if you use toolcrib to compare to, you might see differences. We believe that they (x-rite) are using limited resolution in some of their unit conversions.

Best,
jeff

Can I use this program and a Spyder 2 Express, with a CRT projector?

Absolutely.

// Lyckman

What colormeters will now be supported ?


Will Spyder 2 Express work good ?