Re: [Gimp-user] Photo protection - transparent foreground
The notion of free distribution while controlling content over the internet is simply not possible. I couldn't have put it in a better way. That's it. People often forget that a content has to be sent to the client, before it can be displayed. Once it is sent, I can't help thinking its kinda unethical trying to control or restrict it. I mean, by means of disabling right-clicks, javascript malicious code running, etc... Uploading low res files or watermarking I think its ok. You are just controlling how much info is being sent, its a server-side solution, so to speak. On Tue, 18 Dec 2012 11:28:02 -0500, Daniel wrote: What you seek to do is something content publishers all over the globe have been seeking to do. The problem with the internet is that it has to trust the client endpoint. You can limit the trust as much as possible, but any data which is to be displayed must also be received and decoded by the client. Once it is on the client, all bets are off. There is simply no way to control data access once it has been sent to the client. We call attempts at doing this DRM and while there have been a great many attempts at accomplishing this, all results are compromised and becomes a failed effort. The notion of free distribution while controlling content over the internet is simply not possible. On Tue, 2012-12-18 at 15:45 +, d b wrote: Thank you to all who have responded with constructive ideas and comments. The reason for my original question was that I want to advertise some scanned in behind-the-scenes colour slides that my dad took while he was filming the speed boat chase sequences from Live and Let Die in 1972. I obviously did not want these freely copied and circulated uncontrolled. Based on all your feedback so far, it appears the answer to the original question is no, it is not possible. Even with using HTML code or using no-right-click techniques, these can be overcome by someone determined enough. I have therefore decided to upload very low resolution versions of my hi res scans, and also include a watermark across them. I will keep monitoring future replies and respond if required. I'm now off to explore more GIMP features . Thanks again. Date: Tue, 18 Dec 2012 05:23:01 +0100 From: for...@gimpusers.com [1] To: gimp-user-list@gnome.org [2] CC: t...@gimpusers.com [3] Subject: [Gimp-user] Photo protection - transparent foreground The only way is to add your name ond some text to avoid copying.. or make the resulution small that nobody bother to copy them.. :). Anyway - don't put out any photos on the internet ..that you are afraid of being copied... BTW Feel free to share mine :D Attachments: * users.com/system/attachments/7/original/gimpkatt1.jpg f 2px solid; margin-left:5px; width:100%-- solensdatter2 (via www.gimpusers.com/forums [6]) ___ gimp-user-list mailing list gimp-us /mailman/listinfo/gimp-user-list ___ gimp-user-list mailing list gimp-user-list@gnome.org [4] https://mail.gnome.org/mailman/listinfo/gimp-user-list [5] ___ gimp-user-list mailing list gimp-user-list@gnome.org [7] https://mail.gnome.org/mailman/listinfo/gimp-user-list [8] Links: -- [1] mailto:for...@gimpusers.com [2] mailto:gimp-user-list@gnome.org [3] mailto:t...@gimpusers.com [4] mailto:gimp-user-list@gnome.org [5] https://mail.gnome.org/mailman/listinfo/gimp-user-list [6] http://www.gimpusers.com/forums [7] mailto:gimp-user-list@gnome.org [8] https://mail.gnome.org/mailman/listinfo/gimp-user-list ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Photo protection - transparent foreground
Thank you to all who have responded with constructive ideas and comments. The reason for my original question was that I want to advertise some scanned in behind-the-scenes colour slides that my dad took while he was filming the speed boat chase sequences from Live and Let Die in 1972. I obviously did not want these freely copied and circulated uncontrolled. Based on all your feedback so far, it appears the answer to the original question is no, it is not possible. Even with using HTML code or using no-right-click techniques, these can be overcome by someone determined enough. I have therefore decided to upload very low resolution versions of my hi res scans, and also include a watermark across them. I will keep monitoring future replies and respond if required. I'm now off to explore more GIMP features . Thanks again. Date: Tue, 18 Dec 2012 05:23:01 +0100 From: for...@gimpusers.com To: gimp-user-list@gnome.org CC: t...@gimpusers.com Subject: [Gimp-user] Photo protection - transparent foreground The only way is to add your name ond some text to avoid copying.. or make the resulution small that nobody bother to copy them.. :). Anyway - don't put out any photos on the internet ..that you are afraid of being copied... BTW Feel free to share mine :D Attachments: * http://www.gimpusers.com/system/attachments/7/original/gimpkatt1.jpg -- solensdatter2 (via www.gimpusers.com/forums) ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Photo protection - transparent foreground
What you seek to do is something content publishers all over the globe have been seeking to do. The problem with the internet is that it has to trust the client endpoint. You can limit the trust as much as possible, but any data which is to be displayed must also be received and decoded by the client. Once it is on the client, all bets are off. There is simply no way to control data access once it has been sent to the client. We call attempts at doing this DRM and while there have been a great many attempts at accomplishing this, all results are compromised and becomes a failed effort. The notion of free distribution while controlling content over the internet is simply not possible. On Tue, 2012-12-18 at 15:45 +, d b wrote: Thank you to all who have responded with constructive ideas and comments. The reason for my original question was that I want to advertise some scanned in behind-the-scenes colour slides that my dad took while he was filming the speed boat chase sequences from Live and Let Die in 1972. I obviously did not want these freely copied and circulated uncontrolled. Based on all your feedback so far, it appears the answer to the original question is no, it is not possible. Even with using HTML code or using no-right-click techniques, these can be overcome by someone determined enough. I have therefore decided to upload very low resolution versions of my hi res scans, and also include a watermark across them. I will keep monitoring future replies and respond if required. I'm now off to explore more GIMP features . Thanks again. Date: Tue, 18 Dec 2012 05:23:01 +0100 From: for...@gimpusers.com To: gimp-user-list@gnome.org CC: t...@gimpusers.com Subject: [Gimp-user] Photo protection - transparent foreground The only way is to add your name ond some text to avoid copying.. or make the resulution small that nobody bother to copy them.. :). Anyway - don't put out any photos on the internet ..that you are afraid of being copied... BTW Feel free to share mine :D Attachments: * http://www.gimpusers.com/system/attachments/7/original/gimpkatt1.jpg -- solensdatter2 (via www.gimpusers.com/forums) ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Photo protection - transparent foreground
On Mon, Dec 17, 2012 at 10:34 AM, d b dd_besgr...@hotmail.com wrote: I have heard you can protect your photographs on the web by applying a transparent overlay to them. When someone then right clicks and saves the image, all they get is the transparent foreground and not the photo underneath. FYI, anyone with the knowledge can defeat this protection quite easily. I'm not saying it won't help at all, but robots, browser extensions, and code monkeys will not be fooled by this approach ;) Chris ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Photo protection - transparent foreground
On 12/17/2012 12:48 PM, Chris Mohler wrote: On Mon, Dec 17, 2012 at 10:34 AM, d b dd_besgr...@hotmail.com wrote: I have heard you can protect your photographs on the web by applying a transparent overlay to them. When someone then right clicks and saves the image, all they get is the transparent foreground and not the photo underneath. FYI, anyone with the knowledge can defeat this protection quite easily. I'm not saying it won't help at all, but robots, browser extensions, and code monkeys will not be fooled by this approach ;) Yep, you write-eth the truth. :) Peace... Tom ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Photo protection - transparent foreground
The reason what you are talking about works is because of CSS. Consider this: div style=background-image: url(../images/test-background.gif); height: 500px; width: 500px; img src=glass_pane_watermark.png alt=My protected image height=500 width=500 / /div This shows how this is done. There is nothing about normal image files which will facilitate layering the way you intend. Even if it did, a save of such an image would likely save all of the layers included within a single file. In the example code above, the background image of the div cell is the actual image you want to show. The img tag holds the link to the transparent image which would be saved when someone does a right-click. This is not a perfect solution. In fact, there is no perfect solution that doesn't involve a combination of server-side and client-side programming. So to accomplish something like that, you would have to do a series of interesting things which I suspect is outside of the scope of what you hope to accomplish. However, the example above will suffice to make the basics of what you want to happen. On Mon, 2012-12-17 at 16:34 +, d b wrote: Hi all, I am new to the list. I have searched the lists for an answer to my question, but no joy. Hopefully one of you would be kind enough to help me. I have heard you can protect your photographs on the web by applying a transparent overlay to them. When someone then right clicks and saves the image, all they get is the transparent foreground and not the photo underneath. I have tried to do this using GIMP. However, the web guidance I have seen says you also have to edit the HTML code to do this. Is there a way of doing this from GIMP itself without involving HTML code? Any simple, easy to follow steps for a new user would be greatly appreciated. ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Photo protection - transparent foreground
On Mon, 2012-12-17 at 14:48 -0600, Chris Mohler wrote: FYI, anyone with the knowledge can defeat this protection quite easily. For example, by taking a screenshot... Liam -- Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/ Pictures from old books: http://fromoldbooks.org/ Ankh: irc.sorcery.net irc.gnome.org freenode/#xml ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Photo protection - transparent foreground
On 12/17/2012 04:01 PM, Tom Williams wrote: I'm not saying it won't help at all, but robots, browser extensions, and code monkeys will not be fooled by this approach ;) Yep, you write-eth the truth. :) Spoiler alert: If you want to figure out how to defeat this silly nonsense for yourself, stop reading now. La tee dah dee dum de dumm... OK so: If the right-click functions are disabled, turn off javascript execution to bring them back. If the image you want is covered by a transparent image, go to view style and select no style. If all else fails, press your print screen key, or, to get the original image file intact, do control+s and save as web page, complete. /spoilers Probably the most effective approach to preventing e-z downloading of an image displayed on a web page, is to slice it into a grid of images and reassemble them in an HTML table for display on a web page. This adds a substantial work factor to recovering the original. In the GIMP I find a tool at Filters Web Slice that automates this process, and even makes the HTML table code. I forget whether that's a stock part, or something I found in the plugin registry. This image dicing method can be used to make one big image into a quick and dirty table based web page layout, or to to create a fake image map where different regions of one image are links to different addresses. This is much simpler than making a real image map that uses a coordinate system to make different parts of one uncut image into links to different addresses. All these techniques are WAY out of style for good reasons. :o) Steve Kinney ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Photo protection - transparent foreground
On Mon, Dec 17, 2012 at 4:53 PM, Steve Kinney ad...@pilobilus.net wrote: Probably the most effective approach to preventing e-z downloading of an image displayed on a web page, is to slice it into a grid of images Still defeated by the humble PrtScn key ;) Chris ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Photo protection - transparent foreground
On Mon, Dec 17, 2012 at 5:20 PM, Liam R E Quin l...@holoweb.net wrote: (2) occasionally do google image searches for your images -- (2b) do the same on http://www.tineye.com/ Chris PS: I'm pretty sure I could convince xorg to give me a frame, no matter what video shenanigans were in play - hence no Netflix on linux ;) I'm starting to wander off topic though... ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Photo protection - transparent foreground
On 12/17/2012 03:02 PM, Chris Mohler wrote: On Mon, Dec 17, 2012 at 4:53 PM, Steve Kinney ad...@pilobilus.net wrote: Probably the most effective approach to preventing e-z downloading of an image displayed on a web page, is to slice it into a grid of images Still defeated by the humble PrtScn key ;) You know, I'm VERY disappointed in those of you mentioning the print screen key and NOT mentioning a graphics tool we all like which has a great screen capture function built-in :) lol When I take these kinds of screen shots, I find GIMP's screen shot function great since I can grab a region instead of having to take a shot of the entire screen and crop it later. Ubuntu Linux has a screen shot utility, which also selection of a region so I alternate between using that and using GIMP for the screen shots. :) Peace... Tom ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Photo protection - transparent foreground
I am probably unseasonably, but if you have some times, you can survey a small peace of software very easy to use which is Greenshot allowing to perform most of the types of screen capture , then you can even draw something above the capture and fill it with transparency with some other functionnalities. http://getgreenshot.org/ Regards Paul -Message d'origine- From: Tom Williams Sent: Tuesday, December 18, 2012 12:49 AM To: gimp-user-list@gnome.org Subject: Re: [Gimp-user] Photo protection - transparent foreground On 12/17/2012 03:02 PM, Chris Mohler wrote: On Mon, Dec 17, 2012 at 4:53 PM, Steve Kinney ad...@pilobilus.net wrote: Probably the most effective approach to preventing e-z downloading of an image displayed on a web page, is to slice it into a grid of images Still defeated by the humble PrtScn key ;) You know, I'm VERY disappointed in those of you mentioning the print screen key and NOT mentioning a graphics tool we all like which has a great screen capture function built-in :) lol When I take these kinds of screen shots, I find GIMP's screen shot function great since I can grab a region instead of having to take a shot of the entire screen and crop it later. Ubuntu Linux has a screen shot utility, which also selection of a region so I alternate between using that and using GIMP for the screen shots. :) Peace... Tom ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
Re: [Gimp-user] Photo protection - transparent foreground
On 12/17/2012 06:20 PM, Liam R E Quin wrote: These days I'd suggest to people, (1) have your URL on the images\ That's probably the best idea. You can't really prevent the images from being copied and re-used, but most of the time putting your URL on them converts the situation to a free advertising scenario. Making an image a little harder to copy usually makes it impossible to find in an image search, which is often not what you want. It also usually makes it harder to use the file names and alt text of your images as an element of search engine optimization, which might cost you some traffic you would rather have. :o) Steve Kinney ___ gimp-user-list mailing list gimp-user-list@gnome.org https://mail.gnome.org/mailman/listinfo/gimp-user-list
