Re: [Gimp-user] Can't get GIMP to run

[Mark Morin]

Start icon where? on the desktop? on the start menu under windoz? Every
time I've installed it, there has been an icon in the start menu. I also
never install something using the default installation mode. IIRC, doing
so provides a check box for putting an icon on the desktop


On 07/12/2017 06:46 PM, Rick Strong wrote:
> For the non-pedantically challenged it means what it says: include a
> start icon.
>
> RS
>
> -Original Message- From: Michael Schumacher
> Sent: Wednesday, July 12, 2017 5:38 PM
> To: gimp-user-list@gnome.org
> Subject: Re: [Gimp-user] Can't get GIMP to run
>
> Am 12.07.2017 um 23:25 schrieb Rick Strong:
>
>> It would actually be more helpful if GIMP downloaded start icons for
>> Windows, Mac and Linux platforms, as appropriate.
>
> Aha. What does this even mean?
>
>

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[Gimp-user] Can't get GIMP to run

[Warren]

Have downloaded GIMP twice from the GIMP site.  Downloads OK but cannot find
an icon to start the program.

 

Any help would be appreciated.

 

Thanks in advance.

 

Warren

 

Warren Avery

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602-463-6558

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Re: [Gimp-user] Can't get GIMP to run

[Michael Schumacher]

Am 12.07.2017 um 21:18 schrieb Warren:

> Have downloaded GIMP twice from the GIMP site.  Downloads OK but cannot find
> an icon to start the program.

You should be a bit more specific... for example, you didn't tell us
what platform you are on.

Maybe take some time, think about "What could they possible need to know
to help me?", and try to anticipate some of our questions? :)


-- 
Regards,
Michael
GPG: 96A8 B38A 728A 577D 724D 60E5 F855 53EC B36D 4CDD
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Re: [Gimp-user] selection by value threshold

[Ofnuts]

On 07/12/17 02:18, Carol Spears wrote:



On Tue, Jul 11, 2017 at 6:45 PM, Ofnuts > wrote:


On 07/10/17 08:33, Mitti Mithai wrote:

Gimp 2.9 loads by 16-bit astrophotography files either TIF or
FITS just
great.

I've never had to to this with gimp yet, but I need to make a
selection by
value threshold (I want to "cut out" stars that are hitting
saturation in
my image with values of 64k)...I can't quite seem to figure
out how to do
it.  Does anyone have any advice?
___

Quick and dirty:

- open the channels list
- drag any of the RGB channels down to the lsti to below to make a
copy
- treshold the copy
- channel to selection

Slightly more accurate:

- Create grayscale copy of layer (Color>Desaturate (lightness)
- Threshold to your liking
- While it is visible, open the channel list, right click any
R,G,B channel and "Channel to selection"


These methods are selecting stars of the same saturation?

carol


Yes, if the threshold values you use bracket the required star 
brightness. A variant is to use the quickmask:


- create the initial selection using the grayscale version of the image 
by converting one of the RGB channel to the selection


- start the quickmask

- you can then use the threshold tool interactively to select which 
values will be selected, and at the same time visually check which stars 
will be covered by the selection





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Re: [Gimp-user] selection by value threshold

[Carol Spears]

On Wed, Jul 12, 2017 at 3:08 AM, Mitti Mithai  wrote:

> Somehow I neglected to mention that I am trying to do this in gimp 2.9.
>
> Indeed I could do something like convert to grayscale and then select, but
> right now I can't numerically specify the range of 16-bit values that I
> want to be selected.
>
>
Select By Color can be used, but I can't tell how the selection is working
> in gimp since the threshold appears to suggest it is working on the 8-bit
> image on screen.  I can't quite suss out if 16-bit is fully supported from
> python-fu in 2.9...if someone is confident it is I could write this as a
> simple plugin.
>
> I confess, I don't understand the differences between 16-bit and 8-bit
images other than certainly one has a lot more information than the
other

I do know something about gimp-2.9.  Neither script-fu nor python-fu are
being "maintained".  An example of this is that it is no longer possible to
convert an image from RGB to GRAY due to an extra color profile parameter
required by GIMP.  And I read of similar problems with script-fu (although
that might be a new notation for layer modes).

On the layer modes!  That is where gimp-2.9 is crazy different than all
other GIMP!  Color erase has performed miracles for me.  As you work
through solving this problem of yours, take a look at these new layer
modes.  The answer you need might be in there.

carol
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Re: [Gimp-user] Can't get GIMP to run

[Rick Strong]

It would actually be more helpful if GIMP downloaded start icons for 
Windows, Mac and Linux platforms, as appropriate.


R. Strong

-Original Message- 
From: Michael Schumacher

Sent: Wednesday, July 12, 2017 4:07 PM
To: gimp-user-list@gnome.org
Subject: Re: [Gimp-user] Can't get GIMP to run

Am 12.07.2017 um 21:18 schrieb Warren:

Have downloaded GIMP twice from the GIMP site.  Downloads OK but cannot 
find

an icon to start the program.


You should be a bit more specific... for example, you didn't tell us
what platform you are on.

Maybe take some time, think about "What could they possible need to know
to help me?", and try to anticipate some of our questions? :)


--
Regards,
Michael
GPG: 96A8 B38A 728A 577D 724D 60E5 F855 53EC B36D 4CDD
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Re: [Gimp-user] Can't get GIMP to run

[Rick Strong]

For the non-pedantically challenged it means what it says: include a start 
icon.


RS

-Original Message- 
From: Michael Schumacher

Sent: Wednesday, July 12, 2017 5:38 PM
To: gimp-user-list@gnome.org
Subject: Re: [Gimp-user] Can't get GIMP to run

Am 12.07.2017 um 23:25 schrieb Rick Strong:


It would actually be more helpful if GIMP downloaded start icons for
Windows, Mac and Linux platforms, as appropriate.


Aha. What does this even mean?


--
Regards,
Michael
GPG: 96A8 B38A 728A 577D 724D 60E5 F855 53EC B36D 4CDD
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