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1 votes - 5 average   Animating DP's, not abandoned yet.
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CookieRevised
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RE: Animating DP's, not abandoned yet.
Indeed nice suggestion. And that made me think "How to include data in pixels (actual imagedata) without altering the actual pixel?". Well in PNG this IS possible :D. But you need to know the PNG format very well for that. The trick is to use an alpha-palette.

As you know PNG's supports transparency. Normaly the pixeldata of a PNG with full transparency is stored like this: R G B A R G B A R G B A R G B A... Where RGB is the obvious red/green/blue value, and A is the transparency level. Now altering the transparency level here will result in different pixelshades, so that's no good.

But PNG also supports alpha-palette's. This means that the colors and transparency aren't stored in the pixeldata but in the palette. So, a palette is created and the pixeldata doesn't contain the R G B values but an index to the palette instead. This also means that you can have palette entries which you don't actually use in the image! And here we have our "space" to add the data :D Create an alpha-palette-PNG and add some extra palette entries where you will store your data.

Backdraw, I dunno if Messenger supports these PNG's, and if it does, how they are handled. But since the palette is a important part of an image, I actually have good hopes for it...

more info:
http://www.libpng.org/pub/png/

Note: but implementing this will need a great effort. You need to "read in" the PNG's (DP's) and convert them to an alpha-palette-png (<= not easy), add some palette entries and write the "new format" (including compression! etc. <= totaly not easy)...



EDIT:
[OFFTOPIC]
lol, this brings back memories of a big Belgian contest held back in the mid 90's. Some computer magazine (can't remember which) made a thick article spread over several issues about hidden data in normal computer files and how it can be used. They held a contest to find the hidden data in some common files, like Word docs, images, databases, etc. It opened up whole new ideas and very nice systems of hiding data. It was the hot topic to talk about in Belgian computer world :D lol, I remember finding some funny hidden picture of the author of the article in a ZIP file.....
[/OFFTOPIC]

This post was edited on 09-19-2004 at 11:56 AM by CookieRevised.
.-= A 'frrrrrrrituurrr' for Wacky =-.
09-19-2004 11:04 AM
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Messages In This Thread
Animating DP's, not abandoned yet. - by lhunath on 05-25-2004 at 09:54 PM
RE: Animating DP's, not abandoned yet. - by Maniac on 05-25-2004 at 10:35 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 05-25-2004 at 10:44 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-26-2004 at 04:06 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-26-2004 at 07:16 PM
RE: Animating DP's, not abandoned yet. - by Nick2588 on 05-27-2004 at 06:14 AM
RE: Animating DP's, not abandoned yet. - by user27089 on 05-27-2004 at 07:25 AM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 05-27-2004 at 09:20 AM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-27-2004 at 09:55 AM
RE: Animating DP's, not abandoned yet. - by PaPalemon on 05-27-2004 at 11:46 AM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 05-27-2004 at 11:49 AM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 05-27-2004 at 11:57 AM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-27-2004 at 02:14 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 05-27-2004 at 02:46 PM
RE: Animating DP's, not abandoned yet. - by reisyboy on 05-27-2004 at 03:27 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-27-2004 at 03:33 PM
RE: Animating DP's, not abandoned yet. - by Guido on 05-27-2004 at 05:36 PM
RE: Animating DP's, not abandoned yet. - by crank on 05-27-2004 at 06:37 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 05-27-2004 at 06:54 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-27-2004 at 09:10 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-27-2004 at 09:23 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-28-2004 at 01:47 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-28-2004 at 02:11 PM
RE: Animating DP's, not abandoned yet. - by RebelSean on 05-28-2004 at 02:27 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-28-2004 at 03:09 PM
RE: Animating DP's, not abandoned yet. - by Millenium_edition on 05-28-2004 at 04:04 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 05-28-2004 at 04:45 PM
RE: Animating DP's, not abandoned yet. - by Millenium_edition on 05-28-2004 at 05:01 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 05-28-2004 at 05:07 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-28-2004 at 06:11 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 05-28-2004 at 06:17 PM
RE: Animating DP's, not abandoned yet. - by Varish on 05-28-2004 at 06:58 PM
RE: Animating DP's, not abandoned yet. - by dotNorma on 05-28-2004 at 07:03 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-28-2004 at 07:03 PM
RE: Animating DP's, not abandoned yet. - by Millenium_edition on 05-28-2004 at 07:05 PM
RE: RE: Animating DP's, not abandoned yet. - by lhunath on 05-28-2004 at 07:08 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 05-29-2004 at 08:35 AM
RE: Animating DP's, not abandoned yet. - by Millenium_edition on 05-29-2004 at 08:38 AM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-29-2004 at 09:15 AM
RE: Animating DP's, not abandoned yet. - by rompom7 on 05-29-2004 at 01:24 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 05-29-2004 at 01:44 PM
RE: RE: Animating DP's, not abandoned yet. - by lhunath on 05-29-2004 at 02:30 PM
RE: Animating DP's, not abandoned yet. - by rompom7 on 05-30-2004 at 02:10 AM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-30-2004 at 08:12 AM
RE: Animating DP's, not abandoned yet. - by lhunath on 05-30-2004 at 11:20 AM
RE: Animating DP's, not abandoned yet. - by illuzn on 06-01-2004 at 12:18 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 06-01-2004 at 04:05 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 06-01-2004 at 04:37 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 06-01-2004 at 04:51 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 06-01-2004 at 06:15 PM
RE: Animating DP's, not abandoned yet. - by whowho on 06-04-2004 at 03:02 PM
RE: Animating DP's, not abandoned yet. - by reisyboy on 06-04-2004 at 04:33 PM
RE: Animating DP's, not abandoned yet. - by Hah on 06-04-2004 at 05:25 PM
RE: Animating DP's, not abandoned yet. - by whowho on 06-07-2004 at 05:06 PM
RE: Animating DP's, not abandoned yet. - by whowho on 06-12-2004 at 07:08 PM
RE: Animating DP's, not abandoned yet. - by saralk on 06-12-2004 at 09:26 PM
RE: Animating DP's, not abandoned yet. - by (CyBeRDuDe) on 06-13-2004 at 12:20 AM
RE: RE: Animating DP's, not abandoned yet. - by saralk on 06-13-2004 at 03:50 PM
RE: Animating DP's, not abandoned yet. - by Concord Dawn on 06-13-2004 at 01:51 AM
RE: Animating DP's, not abandoned yet. - by aNILEator on 06-13-2004 at 03:43 AM
RE: Animating DP's, not abandoned yet. - by Vantage on 06-13-2004 at 03:48 AM
RE: Animating DP's, not abandoned yet. - by Concord Dawn on 06-13-2004 at 03:52 AM
RE: Animating DP's, not abandoned yet. - by Vantage on 06-13-2004 at 04:01 AM
RE: Animating DP's, not abandoned yet. - by Concord Dawn on 06-13-2004 at 05:27 AM
RE: Animating DP's, not abandoned yet. - by Vantage on 06-13-2004 at 05:29 AM
RE: Animating DP's, not abandoned yet. - by Concord Dawn on 06-13-2004 at 07:31 AM
RE: Animating DP's, not abandoned yet. - by Black_Forky on 06-13-2004 at 12:14 PM
RE: Animating DP's, not abandoned yet. - by reisyboy on 06-13-2004 at 01:12 PM
RE: Animating DP's, not abandoned yet. - by Concord Dawn on 06-13-2004 at 02:49 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 06-13-2004 at 03:21 PM
RE: Animating DP's, not abandoned yet. - by reisyboy on 06-13-2004 at 03:46 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 06-13-2004 at 04:13 PM
RE: Animating DP's, not abandoned yet. - by (CyBeRDuDe) on 06-13-2004 at 08:28 PM
RE: Animating DP's, not abandoned yet. - by reisyboy on 06-14-2004 at 03:27 PM
RE: Animating DP's, not abandoned yet. - by RebelSean on 07-22-2004 at 04:05 AM
RE: Animating DP's, not abandoned yet. - by aNILEator on 07-22-2004 at 05:03 AM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-02-2004 at 12:03 PM
RE: Animating DP's, not abandoned yet. - by aNILEator on 09-02-2004 at 03:23 PM
RE: Animating DP's, not abandoned yet. - by reisyboy on 09-02-2004 at 10:21 PM
RE: Animating DP's, not abandoned yet. - by aNILEator on 09-03-2004 at 07:30 AM
RE: Animating DP's, not abandoned yet. - by RebelSean on 09-03-2004 at 11:02 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-05-2004 at 12:38 PM
RE: Animating DP's, not abandoned yet. - by Vantage on 09-07-2004 at 09:22 PM
RE: Animating DP's, not abandoned yet. - by aNILEator on 09-07-2004 at 09:39 PM
RE: Animating DP's, not abandoned yet. - by (CyBeRDuDe) on 09-08-2004 at 09:08 AM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-08-2004 at 11:45 AM
RE: Animating DP's, not abandoned yet. - by aNILEator on 09-08-2004 at 03:22 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-08-2004 at 05:59 PM
RE: Animating DP's, not abandoned yet. - by VuDu on 09-08-2004 at 06:12 PM
RE: Animating DP's, not abandoned yet. - by aNILEator on 09-08-2004 at 07:07 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-09-2004 at 12:00 AM
RE: Animating DP's, not abandoned yet. - by VuDu on 09-09-2004 at 12:13 AM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-09-2004 at 12:21 AM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-10-2004 at 10:26 PM
RE: Animating DP's, not abandoned yet. - by ElectroSoft on 09-12-2004 at 02:13 AM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-12-2004 at 09:31 AM
RE: Animating DP's, not abandoned yet. - by BEWARE^^ on 09-12-2004 at 09:41 AM
RE: Animating DP's, not abandoned yet. - by Millenium_edition on 09-12-2004 at 10:01 AM
RE: Animating DP's, not abandoned yet. - by Tochjo on 09-12-2004 at 10:38 AM
RE: Animating DP's, not abandoned yet. - by ElectroSoft on 09-12-2004 at 02:36 PM
RE: Animating DP's, not abandoned yet. - by Tochjo on 09-12-2004 at 02:59 PM
RE: Animating DP's, not abandoned yet. - by ElectroSoft on 09-12-2004 at 03:02 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-12-2004 at 04:56 PM
RE: Animating DP's, not abandoned yet. - by Vantage on 09-12-2004 at 05:05 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-12-2004 at 05:20 PM
RE: Animating DP's, not abandoned yet. - by Vantage on 09-12-2004 at 05:24 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-12-2004 at 06:44 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-12-2004 at 07:24 PM
Hidden Data; post your Feature Requests - by lhunath on 09-14-2004 at 02:57 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-14-2004 at 03:08 PM
RE: Animating DP's, not abandoned yet. - by aNILEator on 09-14-2004 at 03:11 PM
RE: Animating DP's, not abandoned yet. - by Knad on 09-14-2004 at 03:15 PM
RE: Animating DP's, not abandoned yet. - by Huuf on 09-14-2004 at 03:17 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-14-2004 at 03:26 PM
RE: Animating DP's, not abandoned yet. - by riahc4 on 09-14-2004 at 08:18 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-14-2004 at 08:26 PM
RE: Animating DP's, not abandoned yet. - by riahc4 on 09-14-2004 at 08:28 PM
RE: Animating DP's, not abandoned yet. - by Vantage on 09-14-2004 at 08:30 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-14-2004 at 08:31 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-14-2004 at 08:57 PM
RE: Animating DP's, not abandoned yet. - by bostonfanx on 09-18-2004 at 04:13 AM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-18-2004 at 07:42 AM
RE: Animating DP's, not abandoned yet. - by ironlink on 09-19-2004 at 12:55 AM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-19-2004 at 09:20 AM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-19-2004 at 11:04 AM
RE: Animating DP's, not abandoned yet. - by aNILEator on 09-19-2004 at 11:17 AM
RE: Animating DP's, not abandoned yet. - by reisyboy on 09-19-2004 at 11:27 AM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-19-2004 at 12:58 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-19-2004 at 01:04 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-19-2004 at 01:10 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-19-2004 at 01:12 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-20-2004 at 01:33 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-20-2004 at 01:37 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-20-2004 at 01:56 PM
RE: Animating DP's, not abandoned yet. - by ElectroSoft on 09-21-2004 at 10:44 AM
RE: Animating DP's, not abandoned yet. - by riahc4 on 09-21-2004 at 08:09 PM
RE: Animating DP's, not abandoned yet. - by user27089 on 09-21-2004 at 08:22 PM
RE: Animating DP's, not abandoned yet. - by aNILEator on 09-21-2004 at 08:23 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-21-2004 at 08:58 PM
RE: Animating DP's, not abandoned yet. - by ElectroSoft on 09-21-2004 at 09:55 PM
RE: Animating DP's, not abandoned yet. - by Millenium_edition on 09-22-2004 at 11:54 AM
RE: Animating DP's, not abandoned yet. - by Eric on 09-22-2004 at 01:35 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-22-2004 at 02:33 PM
RE: Animating DP's, not abandoned yet. - by Millenium_edition on 09-22-2004 at 05:33 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 09-23-2004 at 06:39 AM
RE: Animating DP's, not abandoned yet. - by reisyboy on 09-24-2004 at 05:27 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 09-24-2004 at 06:12 PM
RE: Animating DP's, not abandoned yet. - by Blabj on 09-27-2004 at 08:45 PM
RE: Animating DP's, not abandoned yet. - by .Roy on 09-27-2004 at 08:49 PM
RE: Animating DP's, not abandoned yet. - by riahc4 on 11-05-2004 at 06:10 PM
RE: Animating DP's, not abandoned yet. - by lhunath on 11-06-2004 at 01:59 PM
RE: Animating DP's, not abandoned yet. - by aNILEator on 11-06-2004 at 02:13 PM
RE: Animating DP's, not abandoned yet. - by Millenium_edition on 11-06-2004 at 02:28 PM
RE: Animating DP's, not abandoned yet. - by aNILEator on 11-06-2004 at 05:43 PM
RE: Animating DP's, not abandoned yet. - by limus on 11-06-2004 at 06:28 PM
RE: Animating DP's, not abandoned yet. - by riahc4 on 11-06-2004 at 10:54 PM
RE: Animating DP's, not abandoned yet. - by CookieRevised on 11-07-2004 at 11:35 PM
RE: Animating DP's, not abandoned yet. - by riahc4 on 12-03-2004 at 11:03 PM
RE: Animating DP's, not abandoned yet. - by aNILEator on 12-03-2004 at 11:11 PM
RE: Animating DP's, not abandoned yet. - by riahc4 on 12-04-2004 at 01:36 AM
RE: Animating DP's, not abandoned yet. - by aNILEator on 12-04-2004 at 10:32 PM


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