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tech / rec.photo.digital / Re: Irfanview color depth

SubjectAuthor
* Irfanview color depthPeter
+- Irfanview color depthDavid Taylor
+* Irfanview color depthShinji Ikari
|`- Irfanview color depthPeter
`- Irfanview color depthJJ

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Irfanview color depth

<uk7jo3$sl18$1@dont-email.me>

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From: confused@nospam.net (Peter)
Newsgroups: alt.comp.os.windows-10,rec.photo.digital,alt.comp.freeware
Subject: Irfanview color depth
Date: Wed, 29 Nov 2023 15:01:24 +0000
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 by: Peter - Wed, 29 Nov 2023 15:01 UTC

In Irfanview, you can Decrease Color Depth to any level but how can you
either increase it or figure out what the current color depth is set to?

Re: Irfanview color depth

<uk801p$lvhh$1@dont-email.me>

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From: david-taylor@blueyonder.co.uk.invalid (David Taylor)
Newsgroups: rec.photo.digital
Subject: Re: Irfanview color depth
Date: Wed, 29 Nov 2023 18:31:21 +0000
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 by: David Taylor - Wed, 29 Nov 2023 18:31 UTC

On 29/11/2023 15:01, Peter wrote:
> In Irfanview, you can Decrease Color Depth to any level but how can you
> either increase it or figure out what the current color depth is set to?

Image menu, Information.

--
Cheers,
David
Web: https://www.satsignal.eu

Re: Irfanview color depth

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From: shinji@gmx.net (Shinji Ikari)
Newsgroups: alt.comp.os.windows-10,rec.photo.digital,alt.comp.freeware
Subject: Re: Irfanview color depth
Date: Wed, 29 Nov 2023 21:15:00 +0100
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 by: Shinji Ikari - Wed, 29 Nov 2023 20:15 UTC

Hello

Peter <confused@nospam.net> schrieb

>In Irfanview, you can Decrease Color Depth to any level but how can you
>either increase it or figure out what the current color depth is set to?

Did you try pressing the key: i (= Information)?

Re: Irfanview color depth

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From: confused@nospam.net (Peter)
Newsgroups: alt.comp.os.windows-10,rec.photo.digital,alt.comp.freeware
Subject: Re: Irfanview color depth
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 by: Peter - Thu, 30 Nov 2023 01:41 UTC

Shinji Ikari <shinji@gmx.net> wrote:
> Did you try pressing the key: i (= Information)?

The Irfanview "i" key brings up a table showing the compression, original
size, current size, print size from DPI, original colors, current colors,
number of unique colors (with "auto count" being checked, whatever that
means).

It looks like the color depth is the "current colors" but how do you get
rid of the other color-related entropy bits when you reduce color depth?

(Sorry for duplicate posts - it's what Eternal September sometimes does.)

Re: Irfanview color depth

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From: jj4public@outlook.com (JJ)
Newsgroups: alt.comp.os.windows-10,rec.photo.digital,alt.comp.freeware
Subject: Re: Irfanview color depth
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 by: JJ - Thu, 30 Nov 2023 11:58 UTC

On Wed, 29 Nov 2023 15:01:24 +0000, Peter wrote:
> In Irfanview, ...
> ... figure out what the current color depth is set to?

Look at the first column of the application window statusbar. It should
display something like e.g.:

1280 x 720 x 24 BPP

That "BPP" is an acronym for Bits Per Pixel. i.e. the color depth.

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