Quote: "ken6528"How do you crop coins that are not round?
For coins with flat sides, I just put thick white lines along the flat parts, then fill up the rest of the background with more lines until it is completely white.
Quote: "ken6528"How do you crop coins that are not round?
Tutorial for picture cropping, including irregular or non-round coins.
Quote: "CREPOSUC"Cropping with GIMP 2.8 (with approximate translations for tools)
(thanks chomp-master)
Round coin
Zoom the pic to the maximum of allowed space [Display] [Zoom]
1- < Elliptic selection > tool
2- Adjust to the coin listel
3- Menu [ COPY ]
4- Menu [ PASTE AS ] [ new image ]
https://static-numista.com/forum/images/57840281f0c5b.png
5- < Filling > tool, white colour.
https://static-numista.com/forum/images/578402bed3968.png
ENDING for all methods
To be tried if useful and compare:
• Menu [Colours] [Colour] with everything at 0
• Menu [Colours] [Luminosity-Contrast]
• Menu [Colours] [Levels…]
If necessary : < rotate > tool
Final step: Menu [File] [Export As…] « xxx-M.png » in special folder where « xxx.png » original is.
Irregular coin (two methods adopted)
Preliminary steps :
1- Frame the coin : < Rectangular selection > tool and [Image] [Trim following the selection]
2- Zoom to the pic like for round coins
A method for probably uniform background
1- bleach the surrounding part of the pic using the < FILLING > tool, starting by the pic borders (1), and by the farthest and clearest parts of the pic (2)
https://static-numista.com/forum/images/5784030810cf2.png
2- getting to the closest of the coin, the colour to delete may be found inside the coin and make white spots, please cancel if needed [Edit] [Cancel]
3- zoom to 400 or 500 %
4- take the < pencil > tool on "Hardness", choose the size to erase the remnants and follow slowly the coin listel by small sections, making errors easier to cancel.
https://static-numista.com/forum/images/57840334b89ba.png
5- reduce to see the result … and go to the common ENDING step.
B method for a patchwork background
1- Zoom the pic as explained above
2- Using the < path > tool, mark the limits of the coin
https://static-numista.com/forum/images/5784035d169bc.png
3- Lock the last dot using < Select from the path >
4- Click on [Select] [Invert]
5- Click on [Edit] [Erase]
6- Bleach the new black background using the < Filling > tool
7- [Select] [None] and go to the common ENDING step.
Other methods possible exist
For example : bleach exterior of coin by sectors with the < path > tool.
Administrateur du catalogue, référent de nombreuses nations antiques et de la Lorraine.
Catalogue administrator, numerous Antique nations and Lorraine referee.
To avoid double work, please write here before you start working on some country/coins. I will make them bold in the list, so nobody will start them doing too.
CONGRATULATIONS I'm not happened to this perfection, I'm an amateur.
Can you we know your software and with what method?
GIMP (magic wand) + a lot of patience
Well, at the moment I'm working on a program which will automatically crop images. It will take some time to develop it, yet I hope that it will show some decent results in the end.
I've written an app which does cropping, will be testing it during the next few days.
In order to test it I would need a bit of your help. I need a huge set of photos which need to be cropped. They must be downloaded, packed to an archive (.zip, .rar, .tar.gz, etc) and sent to my e-mail: amsterdancer@gmail.com
Then I will test the app, will send you back the photos which have been cropped successfully and will keep on enhancing its performance.
Quote: "Jarcek"I would suggest taking samples from Indian States and India - Ancient. As well as Ancient Rome. These are full of unpredictable forms.
Please do it as much as possible, you may start more slowly with Roman Provinces as well.
Administrateur du catalogue, référent de nombreuses nations antiques et de la Lorraine.
Catalogue administrator, numerous Antique nations and Lorraine referee.
Félicitations, c'est très bien comme cela.
Je rajoute un niveau automatique de GIMP mais ce n'est pas nécessaire.
Congratulations, it's very much like this.
I add an automatic level of GIMP but is not necessary.
DONE
Venezuelan Provinces
Venezuela
Uganda
Tunisia
Saint Helena
Saint Helena & Ascension
Spanish Netherlands
Spanish states
Sri Lanka
Suriname
Sweden
Swis Cantons
Togo
Tokelau
Trinidad and Tobago
Also adding one specific request for a Chinese Empire coin I just fused with a rejected duplicate request (old Numista copyright which could be deleted that way) : https://en.numista.com/catalogue/pieces20609.html
Administrateur du catalogue, référent de nombreuses nations antiques et de la Lorraine.
Catalogue administrator, numerous Antique nations and Lorraine referee.
Quote: "chomp-master"Also adding one specific request for a Chinese Empire coin I just fused with a rejected duplicate request (old Numista copyright which could be deleted that way) : https://en.numista.com/catalogue/pieces20609.html
Quote: "chomp-master"Also adding one specific request for a Chinese Empire coin I just fused with a rejected duplicate request (old Numista copyright which could be deleted that way) : https://en.numista.com/catalogue/pieces20609.html
DONE
Perfect, txs.
Administrateur du catalogue, référent de nombreuses nations antiques et de la Lorraine.
Catalogue administrator, numerous Antique nations and Lorraine referee.
WOW.
Catalogue says thank you!
