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| Started by | avishaiben@gmail.com |
|---|---|
| First post | 2017-01-31 16:38 -0800 |
| Last post | 2017-02-01 10:56 -0700 |
| Articles | 2 — 2 participants |
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Correct way to 'normalize' multiple picture to the same colors avishaiben@gmail.com - 2017-01-31 16:38 -0800
Re: Correct way to 'normalize' multiple picture to the same colors Martin Leese <please@see.Web.for.e-mail.INVALID> - 2017-02-01 10:56 -0700
| From | avishaiben@gmail.com |
|---|---|
| Date | 2017-01-31 16:38 -0800 |
| Subject | Correct way to 'normalize' multiple picture to the same colors |
| Message-ID | <f701c344-f080-4d84-b981-002e2801ded9@googlegroups.com> |
Hi all, First post here. I am taking thousands of photos on similar background and looking for things on top of that. The problem is that I see that the background color means and covs changes. That affects the colors of the things I am looking for. What is the correct way to correct for that? Can I somehow normalize all the colors of the picture to the background? Thanks, Avishai
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| From | Martin Leese <please@see.Web.for.e-mail.INVALID> |
|---|---|
| Date | 2017-02-01 10:56 -0700 |
| Message-ID | <o6t7cm$sld$1@dont-email.me> |
| In reply to | #4223 |
avishaiben@gmail.com wrote:
> Hi all,
>
> First post here.
>
> I am taking thousands of photos on similar background and looking for things on top of that. The problem is that I see that the background color means and covs changes. That affects the colors of the things I am looking for.
>
> What is the correct way to correct for that? Can I somehow normalize all the colors of the picture to the background?
The first question to ask is *why* are the
colours changing? If you keep the
illumination and camera settings constant
then the colours should be consistent.
This is the correct way to correct this.
How to normalise images that you are stuck
with depends on two things:
1. Why they are not normal? (Why are they
different?) What changed?
2. What is the background? If it is a
solid single colour then you may have
problems.
Finally, what are "covs"?
--
Regards,
Martin Leese
E-mail: please@see.Web.for.e-mail.INVALID
Web: http://members.tripod.com/martin_leese/
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