MESSAGE
| DATE | 2021-03-25 |
| FROM | From: =?utf-8?q?Zolt=C3=A1n_Kluik_via_gimp-user-list?=
|
| SUBJECT | Re: [Hangout - NYLXS] [Gimp-user] Change background colour with
|
Sorry I forgot to write, that I'm using kubuntu (ubuntu wiht KDE graphic
screen) and I have only 4 GB RAM.
Zoltán Kluik ezt írta (időpont: 2021. márc. 25.,
Cs 17:32):
> Dear Liam,
>
> Yes, the image is in RGB colour 8 bit.
> What does it mean?
> "to use select -> grow by 1 oe 2 pixels and then select shrink to remove
> small unselected dots." Please explain it.
>
> However I have reduced the size of the images, and tried to attach it
> (100kb is the limit), so that's why the aim what I'm writing can not seen.
>
> 1. Coin_original.jpg --> The original image
> 2. After_global_matting.jpg --> The image after Global matting. If You
> can see when I select only the coin, GIMP copied some other points and when
> I press crtl+shift+v It can see that not outside of the edge of the image
> there is some other points (not fully white)
> 3. After_Global_and_Levin_matting.jpg --> the outside points of the
> edges are deleted, which is perfect, but the colour of the edge is totally
> wrong (not same as the original was, because of the selection of global
> matting).
>
> So this is my problem. In the old GIMP this was better..
>
> I have thousands of photos and (and continuously will have) if the
> background change process takes more time than a minute / image then I need
> to change to someone else.
> Thank you for Your help in advance.
>
> Zoltan
>
> Zoltán Kluik ezt írta (időpont: 2021. márc.
> 25., Cs, 17:24):
>
>> Dear Liam,
>>
>> Yes, the image is in RGB colour 8 bit.
>> What does it mean?
>> "to use select -> grow by 1 oe 2 pixels and then select shrink to remove
>> small unselected dots." Please explain it.
>>
>> However I have reduced the size of the images, and tried to attach it. I
>> hope the system can accept it.
>>
>> 1. Coin_original.jpg --> The original image
>> 2. After_global_matting.jpg --> The image after Global matting. If
>> You can see when I select only the coin, GIMP copied some other points and
>> when I press crtl+shift+v It can see that not outside of the edge of the
>> image there is some other points (not fully white)
>> 3. After_Global_and_Levin_matting.jpg --> the outside points of the
>> edges are deleted, which is perfect, but the colour of the edge is totally
>> wrong (not same as the original was, because of the selection of global
>> matting).
>>
>> So this is my problem. In the old GIMP this was better..
>>
>> I have thousands of photos and (and continuously will have) if the
>> background change process takes more time than a minute / image then I need
>> to change to someone else.
>> Thank you for Your help in advance.
>>
>> Zoltan
>>
>>
>> Liam R E Quin ezt írta (időpont: 2021. márc. 25., Cs,
>> 14:35):
>>
>>> On Wed, 2021-03-24 at 00:15 +0100, Zoltán Kluik via gimp-user-list
>>> wrote:
>>> > . Now in 2.10.22 I open a picture, using foreground
>>> > selection tool, but in this version there is a motor feature where I
>>> > can
>>> > select Global- and Levin matting. I use both with iteration value 1.
>>> > First
>>> > Global is selected, coin is rounded, pressing enter, selecting the
>>> > foreground with the mouse, again pressing enter. Here the problem is
>>> > that
>>> > under the coin where the green background’s colour was a little bit
>>> > darker
>>> > there are green dots.
>>>
>>> One approach is to use select->grow by 1 oe 2 pixels and then select-
>>> >shrink, to remove small unselected dots.
>>>
>>> Is your image in 8-bit colour RGB mode? The title bar of GIMP will tell
>>> you.
>>>
>>> Without a sample image it's hard to tell what's going on exactly. I
>>> take it you are running Linux under GNOME 3 and have 32GBytes of RAM?
>>>
>>> Liam
>>>
>>>
>>>
>>> --
>>> Liam Quin - web slave for https://www.fromoldbooks.org/
>>> IRC::ankh in full-time voluntary servitude
>>>
>>>
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