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UV IR filter in photoshop?


sergiofigliolia
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Do you guys think it would be possible to correct the problem that leads us to use UV IR filters in photoshop?

 

I guess it should be.

 

This would result in sparing some money and some problems too.

 

We've all shot images at night and those filters are quite annoying with their reflections...

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Do you guys think it would be possible to correct the problem that leads us to use UV IR filters in photoshop?

No, it’s not possible. Not in any simple, easily automated way that is. If you don’t mind a lot of work, sometimes recreating the colour from scratch, it is certainly doable.

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A comprehensive "filtering in photoshop" Is practically impossible... for the reason that the color shift is dependent on the subject MATERIAL (fabrics, foliage....) : it happened to me (with M8 unfiltered) to have few cases in which I got in the same pic a blue correct and a very similar blue "shifted" (fabric)... a digital filter can't recognize materials...

... unless one makes a very annoying (and sometimes next to impossible) job of selection of involved areas...
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I should understand then how an optical filter would "recognize materials" then...

... no of course...

... but does recognize UVIR frequencies/spectrum (reflected by certain materials) and blocks them... a digital filter can count only on colors' values in a bitmap (or, if is one of the "smart" type, recognize certain shapes like faces / eyes...) Edited by luigi bertolotti
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Guest srheker
I should understand then how an optical filter would "recognize materials" then...

 

 

A filter does not need to recognize certain materials, it just prevents certain materials from coming in.

 

A fly screen is quite a simple construction (it's simply a filter that keeps objects the size of a fly from passing your window) a machine that finds and and removes flies on the various pieces of furniture and all the other stuff in your house would need a far more sophisticated design.

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