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Community Newsletter: Q&A: 10/3/06 Protecting your digital images from theft
- 10/5/06 4:56 PM
Opacity clarification
by jonnydarke - 10/6/06 8:54 AM In reply to: Honorable mentions by Lee Koo (ADMIN)
I just wanted to mention to -Chris S. of Tucker, Georgia- that OPAQUE means NO light goes through. Transparent is clear, and TransLUCENT is semi-clear, while allowing light to pass through.
How do you disable right click, especially on My Space
by meowhaven - 10/6/06 10:35 AM In reply to: Honorable mentions by Lee Koo (ADMIN)
I have seen many websites that disable right click so that pictures can not be copied. How do you disable right click for picures on websites like My Space?
You have to use Javascript...
by darrenforster99 - 10/7/06 2:21 AM In reply to: How do you disable right click, especially on My Space by meowhavenAlthough it doesn't always stop people from taking it!
The following code tells you how to do it and was taken from http://allwebco-templates.com/support/S_add_rightclick.htm
Create a file called something like norightclick.js on your server with the following text inside it:
function noRightClick() {
if (event.button==2) {
alert('You may not right mouse click this page.')
}
}
document.onmousedown=noRightClick
Then in each page you want to stop from right clicking add the following in between the <HEAD></HEAD> tags...
<SCRIPT LANGUAGE="JavaScript" SRC="norightclick.js"></SCRIPT>
No more right clicking (you can customise the above alert ('') to whatever message you want to display (if you so wanted you could even have a random message displayed to add a bit of variety!).
okaii..
by jackiebaby33 - 12/10/08 1:34 PM In reply to: You have to use Javascript... by darrenforster99how do i put it on my profile? i dont know where the head is at??
You have to use Javascript...
by darrenforster99 - 10/7/06 2:22 AM In reply to: How do you disable right click, especially on My Space by meowhavenAlthough it doesn't always stop people from taking it!
The following code tells you how to do it and was taken from http://allwebco-templates.com/support/S_add_rightclick.htm
Create a file called something like norightclick.js on your server with the following text inside it:
function noRightClick() {
if (event.button==2) {
alert('You may not right mouse click this page.')
}
}
document.onmousedown=noRightClick
Then in each page you want to stop from right clicking add the following in between the <HEAD></HEAD> tags...
<SCRIPT LANGUAGE="JavaScript" SRC="norightclick.js"></SCRIPT>
No more right clicking (you can customise the above alert ('') to whatever message you want to display (if you so wanted you could even have a random message displayed to add a bit of variety!).
Watermark No Guarantee
by Angry Write Mail - 10/6/06 11:13 AM In reply to: Honorable mentions by Lee Koo (ADMIN)
It is very easy to remove watermarks, using photoshop. What I think a lot of you are forgetting is that, a watermark does not PROVE original authorship.
It just as easily can illustrate that you know how to take a picture off the internet and put a watermark on it. Watermarking is a waste of time and effort.
Other recommendations from our members
by Lee Koo (ADMIN) - 10/5/06 3:55 PM
In reply to: 10/3/06 Protecting your digital images from theft by Lee Koo (ADMIN)
Answer:
You could edit the image properties and then tag the image, which may or may not offer you the level of protection you’re looking for.
However, I suspect what your looking for is something that will clearly identify images as that of yours (e.i. so you could host a web gallery for people to view your images and then purchase them afterwards, sans your information?).
For this purpose, I have made use of a nifty little software package called Picture Shark 0.95 beta. This is a feature rich program that allows you to imbed text, graphics, logo's, etc right into your image in a variety of ways. You can select how strong the impression is, the contrast of the impression and the opacity & location of the impression. It also allows you to customise your information so as to allow for the best possible viewing of the image, whilst still clearly indicating what ever information you'd like to, on the image! It allows you to modify single images or perform batch jobs.
The version I use is several years old & I'd highly suspect that they made many more improvements to it since its' release. I'd highly recommend it, at least for a test-drive!
Submitted by: Mark B. of Toronto, Ontario, Canada
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Answer:
Hi Rita,
Unfortunately there is no easy way to protect your digital work. In most cases anyone looking at your picture can easily right click and save it onto their system. They can then open it up in a photo editing program like Photoshop (or even Windows Paint!) and modify the painting to remove your signature (if you have placed it on the image). It’s also very easy to change the information stored with an image (eg who took it, when and where etc). Even if there was an image format that supported digital signing of pictures, all someone would have to do is take a screenshot of their monitor when they had your image displayed, copy and paste it into a photo editor, and presto, all information associated with that image format is stripped away, leaving only the image.
If you are displaying your work to sell, it is probably worth using a watermark. This is another image that you embed over the top of your own image, and it may contain the word “copyright” thousands of times over the surface of your work. It’s pale enough that people can see your photo, but is still easily visible and cannot be easily removed with a photo application.
To be honest though, I wouldn’t worry too much about the copyright. Look on a site like Flickr (http://www.flickr.com). If people want an image, there are literally millions of them to choose from online. If you are very concerned about what to do if someone uses one of your images inappropriately, I would suggest seeking legal advice.
Regards.
Submitted by: Peter O.
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Answer:
This is not a difficult problem. But it does take a little work. If you have an image editing software such as Photoshop, PhotoPlus, or Gimp you would use your picture as a layer. Then create your signature as another layer with a transparent background. You could either use a cursive type of font or freehand draw with your mouse. To digitally sign it, you would add a watermark. This is a clear mark that stays with the picture that is unique and unerasable. That is your copyright mark.
Submitted by: Charles M.
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Answer:
Hi Rita,
I do not know about the copyright issues, but a relatively simple way to get a signature would be to use a scanner to scan an image of your signature into your computer. You can use a photoshop type software program to add that image to your existing photographs. Simply enter into the editing mode of whatever software you choose, and layer your signature onto the top of the image.
Good Luck!
Submitted by: Bill V.
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Answer:
There are quite a few ways to go about putting your signature (or any other symbol you choose) on a digital picture. The program I would suggest using is Adobe Photoshop CS2. What you can do (and this should work in other image editing programs), is add a layer to the image, make that new layer come to the very front, and just put your uploaded signature in that layer. If you want to put a watermark of some sort on the image, again, add a new layer, bring it to the front, and put whatever watermark you would like in the layer. Use color effects to lower the alpha quite a bit so that it's visible, but just barely.
Hope this helps!
Submitted by: Rishi G.
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Answer:
I use a program call PhotoWatermark Professional - you can create your own signatures and add them to photos. One word of warning - once you add a signature, you can't remove it.
There is also a way of adding them through Adobe Photoshop but I have never tried it.
Submitted by: Sue
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Answer:
You should find what you want from http://www.jjtc.com/ihws98/jjgmu.html. In any case it is interesting reading.
Good luck.
Submitted by: Gus W.
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Answer:
There is a great program called VISUALIZER PHOTO RESIZE that will do what you want. It can be downloaded FREE from:
http://www.freeimagebrowser.com/resize/
You can add a watermark that will include your name and the copyright notice. You can select the location and color of the watermark.
You can resize large files so that it will take less time to upload the files.
Submitted by: Don S.
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Answer:
You don’t need to install any extra software to do this. Find your pictures in Explorer, and select the ones you want to “sign”. Right click on one of the selected pictures and click “Properties”. Click the “Details” tab, and then fill in the “Author” field with your name.
Submitted by: David M.
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Answer:
Try the software Umark Lite from http://www.uconomix.com . It is free.
Submitted by: JDL
Another way to protect images..
by tarasman - 10/6/06 11:50 AM In reply to: Other recommendations from our members by Lee Koo (ADMIN)
There is javascript that will disable right-clicking. When you put your photos on a web-site, by disabling right-clicks (or control-clicks on Mac), they will be unable to save, or copy your work. Many commercial sites use this method of protecting their images.
Granted, you cannot store your work on 3rd party sites and use this method, but if you have your own site, this is definitely worth looking into. I'll include a link to a free copy of the script from Dynamic Drive.
http://www.dynamicdrive.com/dynamicindex9/noright.htm
Watermark without hassle
by masswork - 10/7/06 7:12 AM In reply to: Other recommendations from our members by Lee Koo (ADMIN)
Hi, i've created a software called Image Compressor.
http://www.image-compressor.com
Image Compressor can do all your needs, from resize to watermark. The watermarking can be done easily by entering your copyright text or embedding the image. Then simply choose the location and opacity.
Try it, and let me know what you think.
http://www.download.com/Image-Compressor/3640-12511_4-10582331.html?tag=tab_ur
Watermarking photographs
by walkerdine - 10/6/06 4:07 AM In reply to: 10/3/06 Protecting your digital images from theft by Lee Koo (ADMIN)
You could, of course, subscribe to something like Digimark. In this way you can always identify your pictures and anyone else can soon see who the copyright owner is and make contact via email.
This system embeds an invisible code in the entire picture and it is almost impossible to erase.
If you also add a visible watermark then things will be as secure as you can make them.
It is often not a good idea to place high definition shots on the web. Keep them at low resolution and of small size. In this way they are not really going to be much use to anyone.
Digimarc
by raynardo - 10/6/06 6:52 AM In reply to: Watermarking photographs by walkerdineSomewhat pricey, but probably the best way to protect your digital photographs on the web.
Here's the link:
http://www.digimarc.com/mypicturemarc/
protecting images
by grandanois - 10/6/06 4:39 AM In reply to: 10/3/06 Protecting your digital images from theft by Lee Koo (ADMIN)
There is plenty on nice free sofware to do this ie.
AiS Watermark Pictures Protector 3.5.1.366
or else just go to downloads and type watermark
Protecting images
by warpcorecomputers - 10/6/06 4:55 AM In reply to: protecting images by grandanoisHello well waht you can do is simple.
when you create your html to show your picture
you can put a simple java script to protect it.
see the way poeple actually download the picture is
by right click and select save.
this script will block it.
put it right below the <head> tag
script language="JavaScript"> <!--
var message="Sorry, that function is disabled.\n\nContents & Graphics Copyright ©your name\nOur work is not Public Domain, and should NOT be taken from this site."; // Message for the alert box
// Don't edit below!
function click(e) {
if (document.all) {
if (event.button == 2) {
alert(message);
return false;
}
}
if (document.layers) {
if (e.which == 3) {
alert(message);
return false;
}
}
}
if (document.layers) {
document.captureEvents(Event.MOUSEDOWN);
}
document.onmousedown=click;
// --> </script>
Where it says @your name put your name there
it is simple and it works great
Warpcore
works great...until a user turns off JavaScript
by wresnick - 10/6/06 6:28 AM In reply to: Protecting images by warpcorecomputersThe problem with this solution is that the workaround is simple, but perhaps not obvious to a novice user.
With watermarks, people have discussed workarounds such as taking screen shots and saving them, but if the watermark is not visible, a thief would have no way of knowing that it would be necessary to try to remove the watermark.
I'm not saying that it's bad to use the JavaScript. It's actually a good idea. It's better to stop people first than to fight them later. But don't get too comfortable with it.
Perhaps somebody can discuss the benefits of having a Java applet to display the photos but give the users no way of saving them. Aside from the ridiculous amount of overhead added to loading a page, and the fact that screen prints still work, it's an option. I don't think I'd use it, though.
The bottom line is that you will never be 100% protected since a screen print can capture anything, an editor can change anything, and it would not be very tough to write a program to remove a watermark, if we assume a specific method such as a 255 to 254 shift for the pattern. If you don't know how a hidden watermark works, then you can't prove it's there. If you do know, a thief can remove it -- providing he/she knows what to look for, and there's the rub.
protecting images
by walkerdine - 10/6/06 7:04 AM In reply to: Protecting images by warpcorecomputersTrue, but anyone that knows anything about HTML can go to the source page and disable it. So it works fine for 90% of the time , but if someone is determined to steal it they can.
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