Re: [Gimp-user] scan-mirrage-effect-Problem with postcard

[Nikolai :.. via gimp-user-list]

He would have to mount them   then take the photo

Get Outlook for Android


From: gimp-user-list  on behalf of Robin 
Simmons 
Sent: Monday, May 10, 2021 4:59:18 PM
To: Tim (from Hamburg) ; gimp-user-list@gnome.org 

Subject: Re: [Gimp-user] scan-mirrage-effect-Problem with postcard

Hello Tim,

I have done a lot of scanning but never seen this effect before.  It looks like 
a limitation of the scanner. Have you thought of using a camera on a tripod to 
make copies of the original photos?  You are scanning at 600dpi, but a decent 
camera should be able to exceed that easily if the originals are no larger than 
a postcard (150mm x 100mm).  Just make sure the photos are evenly illuminated 
and set the camera colour balance accordingly.

Rob


On 10/05/2021 15:24, Tim (from Hamburg) via gimp-user-list wrote:
> Hi folks,
>
> i'm trying to digitalis a postcard composed out of 4 different photos 
> (without access to the original). To get the highest resolution possible i 
> bought me a scanner, but while working grate on normal paper, its got 
> problems with that glossy postcard-paper i would like to remove digitally. I 
> scanned the postcard once horizontally and once vertically in 600 dpi photo 
> mode (see both layers). I rotated one layer and positioned it roughly, but i 
> am not in search for a complex ai based filter that removes distortions by 
> combining both scans in a complicated way, the two layers is just to state my 
> issue.
>
> My question is, is there any filter i can use to remove this rainbow-like 
> lines in one of the layers and if so, how could i accomplish this things with 
> gimp.
>
> Ill try to attach the file (ca. 40.8 MB xcf file) here, if this dosnt work 
> you can download it here:
>
> https://nextcloud05.webo.cloud/s/zJnNawrEHeQ52wY
>
> Password:
>
> nsW8ctvHn!
>
> and send files back here:
>
> https://nextcloud05.webo.cloud/s/RxyW93odREQKqfB
>
> Password:
>
> pp'S6}MQ
>
> Thanks for any help in advance!
>
> Tim
>
> PS: excuse the complicated passwords, they are forced by the provider...
>
> PS2: as expected it didn't work:
>
>> : message size 55977695 exceeds size limit 2548
>>  of server smtp.gnome.org[2620:52:3:1:5054:ff:fef4:6212]
>
> ___
> gimp-user-list mailing list
> List address:gimp-user-list@gnome.org
> List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
> List archives:   https://mail.gnome.org/archives/gimp-user-list

___
gimp-user-list mailing list
List address:gimp-user-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
List archives:   https://mail.gnome.org/archives/gimp-user-list
___
gimp-user-list mailing list
List address:gimp-user-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
List archives:   https://mail.gnome.org/archives/gimp-user-list

Re: [Gimp-user] language

[Alexandre Prokoudine via gimp-user-list]

Hi Jess,

In the top menu: Edit > Preferences > interface, click the drop-down
list for Language, choose whatever language you prefer.

Alex

On Wed, May 12, 2021 at 12:06 PM jess.jones1--- via gimp-user-list
 wrote:
>
> hi
>
> how to change the language in gimp?
> ___
> gimp-user-list mailing list
> List address:gimp-user-list@gnome.org
> List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
> List archives:   https://mail.gnome.org/archives/gimp-user-list
___
gimp-user-list mailing list
List address:gimp-user-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
List archives:   https://mail.gnome.org/archives/gimp-user-list

Re: [Gimp-user] update

[Alexandre Prokoudine via gimp-user-list]

Hi Jess,

Assuming you are a Windows user...

1. Don't uninstall GIMP, download a new installer
2. Run it.
3. Enjoy using GIMP

Alex

On Wed, May 12, 2021 at 12:06 PM jess.jones1--- via gimp-user-list
 wrote:
>
> hi
>
> Does gimp updates itself or how to update it?
> ___
> gimp-user-list mailing list
> List address:gimp-user-list@gnome.org
> List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
> List archives:   https://mail.gnome.org/archives/gimp-user-list
___
gimp-user-list mailing list
List address:gimp-user-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
List archives:   https://mail.gnome.org/archives/gimp-user-list

Re: [Gimp-user] scan-mirrage-effect-Problem with postcard

[Tim (from Hamburg) via gimp-user-list]

hello again,

because the mentioned problems with the so-called "cloud-provider" 
requiring passwords and porpably JavaScript ill try to attache here just 
a single scan in png format which shouldnt exeed 20MB even going to 
base64 encoding, hope that'll ok with you


On 5/10/21 4:24 PM, Tim (from Hamburg) via gimp-user-list wrote:
55977695 exceeds size limit 2548 


presuming that you wouldnt make a lets see, not 24 but...

GNU bc (terminal-calculator) session:


2548/1024/1024*0.6
16.19958572387695312500


... 16 MB border if you would be unwilling that files are being posted 
(or can a automatically added signature be so big)?, otherwise, sry


Thanks for any help in advance...

___
gimp-user-list mailing list
List address:gimp-user-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
List archives:   https://mail.gnome.org/archives/gimp-user-list

Re: [Gimp-user] scan-mirrage-effect-Problem with postcard

[Robin Simmons]

Hello Tim,

I have done a lot of scanning but never seen this effect before.  It looks like 
a limitation of the scanner. Have you thought of using a camera on a tripod to 
make copies of the original photos?  You are scanning at 600dpi, but a decent 
camera should be able to exceed that easily if the originals are no larger than 
a postcard (150mm x 100mm).  Just make sure the photos are evenly illuminated 
and set the camera colour balance accordingly.

Rob


On 10/05/2021 15:24, Tim (from Hamburg) via gimp-user-list wrote:

Hi folks,

i'm trying to digitalis a postcard composed out of 4 different photos (without 
access to the original). To get the highest resolution possible i bought me a 
scanner, but while working grate on normal paper, its got problems with that 
glossy postcard-paper i would like to remove digitally. I scanned the postcard 
once horizontally and once vertically in 600 dpi photo mode (see both layers). 
I rotated one layer and positioned it roughly, but i am not in search for a 
complex ai based filter that removes distortions by combining both scans in a 
complicated way, the two layers is just to state my issue.

My question is, is there any filter i can use to remove this rainbow-like lines 
in one of the layers and if so, how could i accomplish this things with gimp.

Ill try to attach the file (ca. 40.8 MB xcf file) here, if this dosnt work you 
can download it here:

https://nextcloud05.webo.cloud/s/zJnNawrEHeQ52wY

Password:

nsW8ctvHn!

and send files back here:

https://nextcloud05.webo.cloud/s/RxyW93odREQKqfB

Password:

pp'S6}MQ

Thanks for any help in advance!

Tim

PS: excuse the complicated passwords, they are forced by the provider...

PS2: as expected it didn't work:


: message size 55977695 exceeds size limit 2548
 of server smtp.gnome.org[2620:52:3:1:5054:ff:fef4:6212]


___
gimp-user-list mailing list
List address:    gimp-user-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
List archives:   https://mail.gnome.org/archives/gimp-user-list


___
gimp-user-list mailing list
List address:gimp-user-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
List archives:   https://mail.gnome.org/archives/gimp-user-list

[Gimp-user] language

[jess.jones1--- via gimp-user-list]

hi

how to change the language in gimp?
___
gimp-user-list mailing list
List address:gimp-user-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
List archives:   https://mail.gnome.org/archives/gimp-user-list

[Gimp-user] update

[jess.jones1--- via gimp-user-list]

hi

Does gimp updates itself or how to update it?
___
gimp-user-list mailing list
List address:gimp-user-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
List archives:   https://mail.gnome.org/archives/gimp-user-list

Re: [Gimp-user] Fw: scan-mirrage-effect-Problem with postcard

[Ofnuts via gimp-user-list]

If the moiré isn't the same when you do several scans (after moving the
card a bit), then you can eliminate the moiré by making several scans
and averaging them after making them overlap exactly.

To average images you can stack them and set the opacity to 100/N where
N is the order of the layer in the stack starting from the bottom: 100%
at the bottom, then 50%, then 33%, 25%, 20%, 17%... There is also a
average filter in the GMIC plugin (but the median filter it contains may
be even better).


On 11/05/2021 02:56, Rick Strong wrote:

I didn't see my reply show up on the Gimp user list.
RS
-Original Message- From: Rick Strong
Sent: Monday, May 10, 2021 11:33 AM
To: Tim (from Hamburg) ; gimp-user-list@gnome.org
Subject: Re: [Gimp-user] scan-mirrage-effect-Problem with postcard

Well, it's not moiré from the glass.

It seems to be a scanning artefact introduced by the scanner. But you
say it
doesn't happen with scans of images on plain or matte paper.
try putting a black card over the postcard before you lower the lid. Also
check your scanner settings.

If that doesn't work, you could try photographing the glossy postcard
with a
camera. With some fridge magnets you could stick it vertically to the
side
of something metallic in good light, like your refrigerator or your car.
Then crop out or clone out the magnets from the photograph.

Rick S.
___
gimp-user-list mailing list
List address:    gimp-user-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
List archives:   https://mail.gnome.org/archives/gimp-user-list



___
gimp-user-list mailing list
List address:gimp-user-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
List archives:   https://mail.gnome.org/archives/gimp-user-list

Re: [Gimp-user] Google Chrome OS

[Ofnuts via gimp-user-list]

Caveat: the fundamental principle of Chromebooks is that they are built
to run ChromeOS, and in ChromeOS a lot of the heavy-processing is
off-loaded to Google servers. This allows to make Chromebooks with small
CPUs and RAM to keep their price low.  An application like Gimp can
require a lot of CPU and RAM to process some images, so you may find
your Chromebook to be struggling when you process decent-sized images.


On 10/05/2021 21:25, Partha Bagchi via gimp-user-list wrote:

Disclaimer - I haven't tested out linux on Chrome OS, though I've played
with Chrome OS on a spare laptop. so you'll have to do the heavy lifting.

Chrome OS has had the ability to run  linux apps for quite a while. So,
first enable linux apps on your Chromebook. This should help:
https://opensource.com/article/20/9/linux-chromebook

Then once you've done that, it "should" be as simple as "sudo apt-get
install gimp".

Hope this helps. If not, please let me know.

Thanks,
Partha



___
gimp-user-list mailing list
List address:gimp-user-list@gnome.org
List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list
List archives:   https://mail.gnome.org/archives/gimp-user-list