Color Checker Passport

I own a "Color Checker Passport", and I don't think it's the same as the "Color Checker Passport VIDEO" in the colour match tab.

How do I add support for my color checker?

AFAIK you have both options in DR. Not at my machine right now.

Edit: Yes, it's like Color Checker Classic.

AFAIK you have both options in DR. Not at my machine right now.

Edit: Yes, it's like Color Checker Classic.

I just checked. I've got color checker passport PHOTO (I think). It doesn't produce a good result with any of them including classic. It made the red hyper saturated (on a flat image).

Did you set the source correctly? Anyway, don't expect too much from such automatisms.

Did you set the source correctly? Anyway, don't expect too much from such automatisms.

One of the cameras I used was a Canon 7D DSLR set to manual capture.
ISO 160, Color Temp 5000 (flash preset), F 2.8, 1/30sec, Adobe RGB
Pic style custom: Sharpness 0, Contrast -4, Sat -4, Color Tone 0.

IMG_2976.JPG (608.45 KiB) Viewed 9896 times

The issue is that I don't even know what color checker I have. It just says "Color Checker Passport" that is all. It doesn't say PHOTO or VIDEO. I have no way of knowing. The only color checkers listed in DR are

X-rite color checker classic
X-rite color checker classic - Legacy
X-rite color checker Video
X-rite color checker passport Video

I wanted to know if you could add more to the list from X-rite based on their many other versions of color checker.

Because my colour checker card is for all intents and purposes "anonymous" (other than it's a "passport") I resorted to guessing by comparing the colour grid displayed in resolve to the physical color grid of my color checker card. It's NOT the passport video which has the black swatch in the middle of the row. It's not the classic which doesn't have a black (dark grey) swatch in the grascale row. It's very similar to the classic - Legacy. But I can see that it's not the right one based on the results. Here are the before and after.

before Colour match

2018-06-30 (1).jpg (337.42 KiB) Viewed 9898 times

after Colour match

2018-06-30 (2).jpg (383.34 KiB) Viewed 9898 times

Hi,

Try setting white balance to 6500 and white level to maybe 0.7-0.8.

You can also try another source gamma. Even if it isn't 'correct' it might prove a result you're happier with.

EDIT: By the way, the X-Rite ColorChecker Passport conforms to the 'Classic' 24 patch target.

Thanks for the reply,

I originally did use 6500 but then I noticed my camera was set to 5000 so I entered that in.

It does actually look better with 6500 but the problem still exists - a sharp spike in the saturation of the red hue.

Screenshot from 2018-07-10 19-35-49.png (731.23 KiB) Viewed 9814 times

There must be something wrong.

[Peter Chamberlain]

How does it look with an iPhone frame of the same chart?

I own a "Color Checker Passport", and I don't think it's the same as the "Color Checker Passport VIDEO" in the colour match tab.

How do I add support for my color checker?

Hi,
Are you sure it's the Color checker Classic?

ColorCheckerClassic.jpg

maybe PassPort? Check? OS? Signature?

Edit : forgot the zoom

ColorCheckerClassic_zoom.jpg

The problem is that I really don't know what it is.

I have included a photo of it below to help identify it.

IMG_3009.JPG (811.86 KiB) Viewed 9733 times

IMG_3010.JPG (871.65 KiB) Viewed 9733 times

How does it look with an iPhone frame of the same chart?

The previous uploaded shots of the chart were taken with an iPhone 6

[Peter Chamberlain]

So when u analyse this frame in Resolve which of the color checker options gives the lowest errors?

I don't know. I thought that it was either the right profile or it wasn't

not "oh, this will do... looks the lest bad..."


CLASSIC LEGACY

classic - legacy.jpg (396.47 KiB) Viewed 9644 times

CLASSIC

classic.jpg (449.6 KiB) Viewed 9644 times

I only included these two since none of the other profiles were even close.

I noticed that I could repeatedly hit the match button and the results would transmute into WILDLY different interpretations with every button press. I assumed that the input to the correction node would be the same with each button press and not accumulate?

Let me know if I need to make a video to demonstrate the issue.

I contacted X-Rite with a link to this post and this was their response to me after reviewing this thread...

Upon further review of the issue, we would like you to contact Black Magic and Da Vince since this problem is more related to the workflow rather than our CC Passport.

Irene Buloron
Application Support (SEA, SA, AUS, NZ)

I contacted X-Rite with a link to this post and this was their response to me after reviewing this thread...

My response would be: avoid using Color Match entirely and just do it all manually, using your eyes, the scopes, and a calibrated monitor. It can be done... and in fact we did it this way for many decades.

Some years ago, Gray Marshall did a video showing the limitations of Color Match with Resolve 11 when the user placed the chart next to a red reflected wall:



These are the kinds of situations where an automatic solution is not going to help. Patrick Inhofer of Mixing Light did several tutorials on Color Match where he showed that basically, you have to do a little bit of manual "prep" work prior to using Color Match, and that it can work under many conditions. But even he admitted that it's still possible to equal those results manually.

There are a lot of situations in post where an automatic solution is not the best choice to solve problems. But sometimes, they can be a godsend; I would point to the auto-tracker in Resolve and Fusion as being a good example.

[Peter Chamberlain]

I don't know. I thought that it was either the right profile or it wasn't

not "oh, this will do... looks the lest bad...".

Looks from those chart numbers you have the Classic, not the Classic Legacy.

With an iPhone 6, what do the Passport Video results look like?

Hey guys,

Happy to read it is the "Classic" one, cos' I own one too...

However, my opinion includes both of the main trends I just read here :

- Actually, I don't really use it often anymore for several reasons; we don't always think about keeping it around and it's more interesting when every cam shoot a few seconds of the chart imho, for the purpose of having one common basis in Resolve to start on... and not at all to rely on it for anything else than a common check (especially not for a final grade). Thus we may think about a special workflow including it, like groups or now shared nodes etc...
Anyway, I still think my eyes can do it too and I'm used to mimic the chart-involved WF by working on the footage my own way...

- On the other hand, Resolve includes everything needed to use X-Rite stuff and more, so it has to work, full stop. The fact we can live without charts is not an answer anyway. I'm interested in the right WF too even though I'm not into it.

Now, Peter, what's actually the point - mysterious for me - of involving an iPhone frame here.

[Peter Chamberlain]

Many cameras have quite non linear color matrix that really don’t work well with our scientific color math. The iPhone is fairly good in that respect so it’s a simple reference

Ok, I understand, thx for your answer...

The problem is that I really don't know what it is.

I have included a photo of it below to help identify it.

IMG_3009.JPG

IMG_3010.JPG

I know this is a few months late but looking at what you show in the images this is actually the X-Rite ColorChecker Passport Photo Edition. So the one you show was made for photography.

Thanks the lot of infos!

I know this is a few months late but looking at what you show in the images this is actually the X-Rite ColorChecker Passport Photo Edition. So the one you show was made for photography.

The big Color Checker Video is actually not that bad. I still much prefer the DSC charts, since those are calibrated to actually produce reasonable patterns on scopes: