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[MBS] Equilibration of photographs (MBS Xojo Plugin Mailinglist archive)

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[MBS] Duplicate Classes error   -   Garth Hjelte
  [MBS] Equilibration of photographs   -   Jean-Luc Arnaud
   Re: [MBS] Equilibration of photographs   -   Christian Schmitz
   Re: [MBS] Equilibration of photographs   -   Christian Schmitz
    Re: [MBS] Equilibration of photographs   -   Jean-Luc Arnaud
   Re: [MBS] Equilibration of photographs   -   Christian Schmitz
    Re: [MBS] Equilibration of photographs   -   Jean-Luc Arnaud

[MBS] Equilibration of photographs
Date: 14.01.16 16:30 (Thu, 14 Jan 2016 16:30:04 +0100)
From: Jean-Luc Arnaud
Hi all,

I would like to know if there are some possibilities to equilibrate
photos with MBS plugins, such as brightness, contrast, exposure, RGB
levels ...?

TIA for any help

Re: [MBS] Equilibration of photographs
Date: 15.01.16 12:37 (Fri, 15 Jan 2016 12:37:55 +0100)
From: Christian Schmitz

>
> Using ChangeContrastBrightnessLinearMBS, am I right thinking that
> contrast value is in the range -1.0 to 1.0 and the Brightness one in the
> range -255 to 255?

yes. Looks like it.


Sincerely
Christian

Re: [MBS] Equilibration of photographs
Date: 14.01.16 17:43 (Thu, 14 Jan 2016 17:43:10 +0100)
From: Christian Schmitz
>
> In addition, I'm looking for an Exposure setting, but didn't find such a
> thing in your doc.

Sorry, not sure which function is that.

Sincerely
Christian

Re: [MBS] Equilibration of photographs
Date: 15.01.16 12:30 (Fri, 15 Jan 2016 12:30:48 +0100)
From: Jean-Luc Arnaud
Using ChangeContrastBrightnessLinearMBS, am I right thinking that
contrast value is in the range -1.0 to 1.0 and the Brightness one in the
range -255 to 255?

> Sorry, not sure which function is that.
Exposure sets some parameters (but I don't know which ones exactly,
probably at least Brightness and Contrast) in the goal to simulate a
shoot with more or less aperture (or more or less speed).
Unless I'm wrong, setting the aperture 1 value more or less (i.e. from
f2.8 to f4) is a 1 EV variation.
In the same way, setting the speed 1 value more or less (i.e. from 1/100
to 1/200) is also a 1 EV variation.

Jean-Luc Arnaud

Le 14/01/2016 17:43, Christian Schmitz a écrit :
>> In addition, I'm looking for an Exposure setting, but didn't find such a
>> thing in your doc.
> Sorry, not sure which function is that.
>
> Sincerely
> Christian
>

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Re: [MBS] Equilibration of photographs
Date: 14.01.16 17:05 (Thu, 14 Jan 2016 17:05:54 +0100)
From: Christian Schmitz

> Am 14.01.2016 um 16:30 schrieb Jean-Luc Arnaud <<email address removed>>:
>
> Hi all,
>
> I would like to know if there are some possibilities to equilibrate
> photos with MBS plugins, such as brightness, contrast, exposure, RGB
> levels ...?

We do have a few picture effects and graphicsmagick can do some things.

You may want to check what you really want and see what our picture plugin has.

Sincerely
Christian

Re: [MBS] Equilibration of photographs
Date: 14.01.16 17:38 (Thu, 14 Jan 2016 17:38:41 +0100)
From: Jean-Luc Arnaud
Thanks, Christian.

Yes, I found ChangeBrightnessMBS and ChangeContrastMBS.
I'm having a look at this.

In addition, I'm looking for an Exposure setting, but didn't find such a
thing in your doc.
Is there something?

Jean-Luc Arnaud

Le 14/01/2016 17:05, Christian Schmitz a écrit :
>> Am 14.01.2016 um 16:30 schrieb Jean-Luc Arnaud <<email address removed>>:
>>
>> Hi all,
>>
>> I would like to know if there are some possibilities to equilibrate
>> photos with MBS plugins, such as brightness, contrast, exposure, RGB
>> levels ...?
> We do have a few picture effects and graphicsmagick can do some things.
>
> You may want to check what you really want and see what our picture plugin has.
>
> Sincerely
> Christian
>

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