Color & Tint - AVS Forum
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post #1 of 8 Old 05-21-2012, 06:54 AM - Thread Starter
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I have a question about calibration workflow.
Would it be wise to set the Color and Tint controls with a blue filter or blue only mode before starting a calibration? Or should it be left at the default setting?

Mike

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post #2 of 8 Old 05-21-2012, 07:00 AM
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Greetings

For grayscale, setting c/T won't make any difference at all. You just have to recheck it at the end and the grayscale correction will alter it slightly ...

I do it before grayscale all the time. It gives me a number. Then later on, the color and the tint process is repeated with the test instrument. That leads to another number. (Establishing a range ... ) Since both methods have strengths and weaknesses ... one method is not always better than the other.

Grand scheme of things ... do it first and just recheck it later. Takes about 20 sec. to recheck it. In most cases, it would not have changed much at all.

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Michael Chen @ The Laser Video Experience
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The Video Calibration Education Hub - www.TLVEXP.com

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post #3 of 8 Old 05-21-2012, 07:03 AM
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Quote:
Originally Posted by wmwilker View Post

I have a question about calibration workflow.
Would it be wise to set the Color and Tint controls with a blue filter or blue only mode before starting a calibration? Or should it be left at the default setting?

Use blue mode if available.

Workflow depends on who you talk to. If you have a full CMS AND your post calibration reference inspection passes muster then you don't need to use Color/Tint. If reference looks off, try Color and Tint first before adjusting the CMS. If that doesn't work, calibrate with the CMS and then adjust Color/Tint to get a good picture.

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post #4 of 8 Old 05-21-2012, 07:05 AM
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You type 3 minutes faster than I, Michael. You referenced GS, I, Gamut. Looks like it's covered sort of....

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post #5 of 8 Old 05-21-2012, 07:07 AM - Thread Starter
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Thanks to you both. I'll play with that for a while.

Mike

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post #6 of 8 Old 05-21-2012, 07:09 AM - Thread Starter
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Quote:
Originally Posted by buzzard767 View Post

You type 3 minutes faster than I, Michael. You referenced GS, I, Gamut. Looks like it's covered sort of....

If I do the CMS and adjust the Color and Tint I assume it would be wise to go back through after any changes. Correct?

Mike

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post #7 of 8 Old 05-21-2012, 07:40 AM
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Quote:
Originally Posted by wmwilker View Post

If I do the CMS and adjust the Color and Tint I assume it would be wise to go back through after any changes. Correct?

If you have finished GS, Gamma, & CMS, and all you have done is change, say, Color to correct flesh tones or something, you are finished with CMS but do go and recheck GS & Gamma. If at this point you change anything in GS &/or Gamma then recheck CMS followed by your references. This is why calibration takes hours instead of BB minutes....

Edit - also recheck black and white levels and clipping - ALWAYS do this

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post #8 of 8 Old 05-21-2012, 08:11 AM - Thread Starter
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Quote:
Originally Posted by buzzard767 View Post

If you have finished GS, Gamma, & CMS, and all you have done is change, say, Color to correct flesh tones or something, you are finished with CMS but do go and recheck GS & Gamma. If at this point you change anything in GS &/or Gamma then recheck CMS followed by your references. This is why calibration takes hours instead of BB minutes....

Edit - also recheck black and white levels and clipping - ALWAYS do this

Thanks

Mike

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