Specify two coins and show flipping images of the obverse and reverse

19 posts • viewed 171 times

This message aims at: suggesting an idea to improve Numista

Status: Opened
Upvotes: 13
Downvotes: 6
A common trick to show the differences between two variations is to produce alternating images of the two coins.

It would be nice to give two coin numbers (or two URLs) and have flipping images displayed for the obverse and reverse.

It wouldn't be as fine-tuned as edited versions, but would be helpful in many cases.

An example of the image I'm talking about: https://en.numista.com/forum/topic110181.html#p909709
Hi,

it's a simple feature in PhotoScape, it's flashing but as such a real documentation is much better. The flashing image is too small to really see anything, if you don't already know what to look for.
Globetrotter
Coin variants in English:
https://sites.google.com/site/coinvarietiescollection/home
In French on Cobra's site (not the same)
https://monnaiesetvarietes.numista.com
Quote: "Sjoelund"​Hi,

​it's a simple feature in PhotoScape, it's flashing but as such a real documentation is much better. The flashing image is too small to really see anything, if you don't already know what to look for.
​Hi Sjoelund... I Think it should "complement" the documentation such as the one you prepare which I consider Top Notch... however there are a lot of coins with variations which are missing documentation and this could be a fast way to show differences (if they are easy to spot) while the documentation is being prepared and of course (Accepted by an Admin)...

Nothing wrong with more data/tools for collectors to identify varieties.
JustforFun...

You take any file.jpg in this case my avatar.
Insert it in powerpoint

Copy it and turn it over

Save the powerpoint file as jpg with two different names A1 & A2
OPen PhotoScape
Click on Edition
Find both your files
Decouper both file and save them
Click on GIF animé
move both files to the gif area
and there you are
Globetrotter
Coin variants in English:
https://sites.google.com/site/coinvarietiescollection/home
In French on Cobra's site (not the same)
https://monnaiesetvarietes.numista.com
I agree it isn't hard to make a flipping image, but this is much easier:
  1. Open a link.
  2. Insert the URLs or numbers of the two coins.

And it would show you flipping images of both sides. I would do that much more often than the process that requires multiple programs and multiple file saves and moves.
If you don't require a sharable image result you can use this tool:

https://herbison.com/Compare/
https://herbison.com/Compare/?left=https://en.numista.com/catalogue/photos/venezuela/134-original.jpg&right=https://en.numista.com/catalogue/photos/venezuela/866-original.jpg

It currently only supports manual fading back and forth, not automatic flipping.

But it only does one side at a time and you need to manually feed it the image URLs. It can't be given the Numista number or URL and figure out the correct image.
Quote: "bjherbison"​If you don't require a sharable image result you can use this tool:

https://herbison.com/Compare/
https://herbison.com/Compare/?left=https://en.numista.com/catalogue/photos/venezuela/134-original.jpg&right=https://en.numista.com/catalogue/photos/venezuela/866-original.jpg

​It currently only supports manual fading back and forth, not automatic flipping.

​But it only does one side at a time and you need to manually feed it the image URLs. It can't be given the Numista number or URL and figure out the correct image.
​Try this site using the image URL's you used.
https://imgflip.com/gif-maker

Image 1 https://en.numista.com/catalogue/photos/venezuela/134-original.jpg
Image 2 https://en.numista.com/catalogue/photos/venezuela/866-original.jpg

You can download the gif.
Quote: "rsirian1"​​​Try this site using the image URL's you used.
https://imgflip.com/gif-maker

​Image 1 https://en.numista.com/catalogue/photos/venezuela/134-original.jpg
​Image 2 https://en.numista.com/catalogue/photos/venezuela/866-original.jpg

​You can download the gif.

​Cool!
Quote: "mikimaus"
Quote: "rsirian1"​​​Try this site using the image URL's you used.
​​https://imgflip.com/gif-maker
​​
​​Image 1 https://en.numista.com/catalogue/photos/venezuela/134-original.jpg
​​Image 2 https://en.numista.com/catalogue/photos/venezuela/866-original.jpg
​​
​​You can download the gif.

​​Cool!
​Agree. Actually, load image 2 first. It sizes the finished gif by the first loaded picture.
Probably a nice feature would also be a slide L-R, but not with fading from one to another, rather just showing both pictures one over another, but with sliding you could easily compare two pictures (show more of first and less of another and vice versa).
LP
Quote: "mikimaus"​Probably a nice feature would also be a slide L-R, but not with fading from one to another, rather just showing both pictures one over another, but with sliding you could easily compare two pictures (show more of first and less of another and vice versa).
​LP
​The link bjherbison used can do this. Here's a screenshot:

My tool can fade, but it can't do a slide. It's on my list to implement, but I have too many other projects to say when I will get to it.
In my opinion, the best is an overlay 50/50) in still, I hope I can find one amongst those I have somewhere!
Globetrotter
Coin variants in English:
https://sites.google.com/site/coinvarietiescollection/home
In French on Cobra's site (not the same)
https://monnaiesetvarietes.numista.com
In my opinion, the best is an overlay 50/50) in still, I hope I can find one amongst those I have somewhere!

Iceland 1 aura 1939 small/large 3

Example;


On the other hand, I don't know how to do that!
Globetrotter
Coin variants in English:
https://sites.google.com/site/coinvarietiescollection/home
In French on Cobra's site (not the same)
https://monnaiesetvarietes.numista.com
Quote: "Sjoelund"​In my opinion, the best is an overlay 50/50) in still, I hope I can find one amongst those I have somewhere!

​Iceland 1 aura 1939 small/large 3

​Example;


​On the other hand, I don't know how to do that!
​That Iceland image is quite well done. Beside the technique in making it, it also helps to have well-taken photos, under the same light, of two nice coins with the same toning.

My tool can do that, but I tried it with the photos of the two 25 Centimos from Venezuela that were used as an example above and it didn't turn out well because of the different appearances in the photograph. So I took images from PCGS and made this:

I adjusted the images until Lincoln aligned, and then move the fade control until I liked the result. But I started with two superb photos of wonderful coins taken under the same conditions.

Sources:
https://www.pcgs.com/coinfacts/coin/1960-d-1c-large-date-rd/2866
https://www.pcgs.com/coinfacts/coin/1960-d-1c-small-date-rd/2869
I also find 50/50 overlaying most useful. Here's one I did:
https://en.numista.com/catalogue/images/5e90a380aedd3.jpg
Quote: "Dejan"​I also find 50/50 overlaying most useful. Here's one I did:
https://en.numista.com/catalogue/images/5e90a380aedd3.jpg

It's just a shame, the two images are not aligned on the circumference​. How do you do it?
Globetrotter
Coin variants in English:
https://sites.google.com/site/coinvarietiescollection/home
In French on Cobra's site (not the same)
https://monnaiesetvarietes.numista.com
Quote: "bjherbison"​​​That Iceland image is quite well done. Beside the technique in making it, it also helps to have well-taken photos, under the same light, of two nice coins with the same toning.

​My tool can do that, but I tried it with the photos of the two 25 Centimos from Venezuela that were used as an example above and it didn't turn out well because of the different appearances in the photograph. So I took images from PCGS and made this:

​I adjusted the images until Lincoln aligned, and then move the fade control until I liked the result. But I started with two superb photos of wonderful coins taken under the same conditions.

​Sources:
https://www.pcgs.com/coinfacts/coin/1960-d-1c-large-date-rd/2866
https://www.pcgs.com/coinfacts/coin/1960-d-1c-small-date-rd/2869



​Well done! Which tool do you use?
Globetrotter
Coin variants in English:
https://sites.google.com/site/coinvarietiescollection/home
In French on Cobra's site (not the same)
https://monnaiesetvarietes.numista.com
I used https://herbison.com/Compare/ . (And then took a screen shot.)

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