Australian-Coins Forum

Numismatic Discussion => Coin Chit Chat => Topic started by: Enlilninlil on November 22, 2015, 05:51:00 PM

Title: Watermarking images
Post by: Enlilninlil on November 22, 2015, 05:51:00 PM
I was reading a thread and some said they watermark their images to try and prevent them being used by others illegally. So how do you watermark images, be scans or photos?
Title: RE: Watermarking images
Post by: trout on November 22, 2015, 06:11:03 PM
Quote from: 'Enlilninlil' pid='81748' dateline='1448176860'I was reading a thread and some said they watermark their images to try and prevent them being used by others illegally. So how do you watermark images, be scans or photos?

There is an option on eBay to do this , But otherwise I wouldn't have a clue. :ok:
Title: RE: Watermarking images
Post by: markn on November 22, 2015, 06:14:58 PM
I use a Windows compatible program called FastStone to do it.  It's kind of neat because I can batch process any number of images to resize and watermark them at the same time.  Our blog uses a WordPress plugin that can watermark images once they are uploaded to the website if we haven't watermarked them previously.
Title: RE: Watermarking images
Post by: trout on November 22, 2015, 10:12:24 PM
QuoteOur blog uses a WordPress plugin that can watermark images once they are uploaded to the website if we haven't watermarked them previously.

Is there a way to implement that software with the images uploaded to the Gallery on this site?
Or is the cost of doing this prohibitive?
Title: RE: Watermarking images
Post by: markn on November 23, 2015, 07:40:54 AM
Quote from: 'trout' pid='81757' dateline='1448192544'
QuoteOur blog uses a WordPress plugin that can watermark images once they are uploaded to the website if we haven't watermarked them previously.

Is there a way to implement that software with the images uploaded to the Gallery on this site?
Or is the cost of doing this prohibitive?

There would need to be a plugin or mod available for the gallery that does it.  I could write something myself but don't really have time right now.  

Why would you want the gallery to watermark things Jim?
Title: RE: Watermarking images
Post by: trout on November 23, 2015, 09:41:16 AM
QuoteWhy would you want the gallery to watermark things Jim?

Just thinking out loud Mate, Some of the members have had their images used in eBay scams.
I don't think they were sourced from our gallery but it wouldn't be impossible to do so.
Title: RE: Watermarking images
Post by: Goldseeker on November 23, 2015, 09:50:55 AM
If you have a programme where you can edit a picture/scan, like ACDC, then one can overprint ones image with ghost like letters.

I just might have to give that idea a try myself.
Title: RE: Watermarking images
Post by: Fulvio on November 23, 2015, 05:57:46 PM
Quote from: 'trout' pid='81760' dateline='1448233876'Some of the members have had their images used in eBay scams.

You do realise watermarks are relatively easily defeated?

The real protection is the law, not a technological approach.
Title: RE: Watermarking images
Post by: purplepennyhunter on November 23, 2015, 06:05:55 PM
No one even looks at the watermark when they steal our images.
Title: RE: Watermarking images
Post by: Fulvio on November 23, 2015, 06:36:22 PM
Quote from: 'purplepennyhunter' pid='81772' dateline='1448264155'No one even looks at the watermark when they steal our images.

I don't think anyone ever looks at watermarks anyway, stolen or not.
Title: RE: Watermarking images
Post by: kchan1111 on November 23, 2015, 09:37:33 PM
Quote from: 'Fulvio' pid='81770' dateline='1448263666'You do realise watermarks are relatively easily defeated?

You need to up the ante in the arms race with something more sophisticated than simple watermarking...

https://en.wikipedia.org/wiki/Steganography
Title: RE: Watermarking images
Post by: Fulvio on November 24, 2015, 01:10:10 AM
Quote from: 'kchan1111' pid='81782' dateline='1448276853'https://en.wikipedia.org/wiki/Steganography

Yeah, I'm a big fan of steganography, especially combined with cryptography.

However, given that one can always take a screenshot, I don't think there's anything you can really do even if you defeat the various ways of removing them
Title: RE: Watermarking images
Post by: JeffH on August 27, 2016, 04:28:36 AM
I just happened to notice an eBay seller with watermarked images where the watermark is big and right across the centre of the coin picture. That is in direct contravention of eBay watermark policy.
However that doesn't matter -the images are the RAM images for the coins; obviously pinched from the RAM website. That is just plain weird (and probably illegal).
Title: RE: Watermarking images
Post by: ausjack on August 27, 2016, 06:37:33 AM
There's a few that use RAM images and they're pretty easy to pick a RAM pic :dodgy:
Title: RE: Watermarking images
Post by: Robster on August 27, 2016, 06:46:11 AM
But who is going to police it! Hard enough getting anything reported and removed as many here has discovered.
Title: RE: Watermarking images
Post by: ausjack on August 27, 2016, 07:06:12 AM
Yes very true mate, pretty sad state of affairs :(
Title: RE: Watermarking images
Post by: robbiegal on August 27, 2016, 12:24:30 PM
not really AJ
copyright and patents have been around for centuries
it's human nature to be a thief  and some media selling mediums really bring out the best of them
Title: RE: Watermarking images
Post by: ausjack on August 27, 2016, 12:59:43 PM
Can say that again as there's lot of people that will try and take advantage of others if they can.