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Stealth jak: Difference between revisions
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[[File:The jig is up.png|thumb|434x434px|{{Quote|>The jig is up, faggot}}<ref>https://desuarchive.org/a/thread/233579278/#233600925</ref><ref>https://desuarchive.org/a/thread/233581289</ref>]] | [[File:The jig is up.png|thumb|434x434px|{{Quote|>The jig is up, faggot}}<ref>https://desuarchive.org/a/thread/233579278/#233600925</ref><ref>https://desuarchive.org/a/thread/233581289</ref>]] | ||
{{Coal}} | {{Coal}} | ||
'ostin 'ems on /a/. | 'ostin 'ems on [[/a/]]. | ||
= Hiding in GIFs = | |||
= | You can hide a jak in a GIF image, but it's not as trivial as hiding in a static image. Hiding a jak in a GIF is a matter of making a slideshow GIF with at least 2 frames: the original image, and the reveal. You can also set a time delay between frames according to when you want the jak to reveal. | ||
On 4chan, the thumbnail of GIF posts is always the ''first'' frame. By setting no delay between the reveal, and disabling looping, you can make an image that looks normal in the thumbnail, but "magically" turns into a soyjak when expanded. | |||
Tools: | |||
* https://ezgif.com/maker | |||
== GIMP == | |||
== ImageMagick == | |||
[https://imagemagick.org ImageMagick] is a command-line image editor. Once comfortable with the tool it can be faster to make stealth jaks with it instead of a graphical program. You can re-use commands by simply changing the input files (highlighted in '''bold'''). This command makes a "thumbnail reveal" for 4chan: | |||
magick '''<filepath of bait image>''' '''<filepath of reveal image>''' -resize '%[fx:u.w]x%[fx:u.h]^' -gravity center -extent '%[fx:u.w]x%[fx:u.h]^' ''-loop 1'' ''-delay 0'' output.gif | |||
Options you may want to change are ''italicized''. | |||
; -loop : Set to '''0''' to loop forever, set to '''1''' to disable looping, that is, simply stop at the last frame. | |||
; -delay : Set the delay in ''centiseconds'' (100ths of a second). '''-delay 100''' would delay 1 second; '''2000''' would delay 20 seconds, and so on. Set '''0''' for no delay, obviously. | |||
Scriptfag made a dataset of 3000 "thumbnail reveal" gifs, using randomly-picked images from boorus. Coomer bait images taken from [https://safebooru.org/index.php?page=post&s=list&tags=rating%3aquestionable safebooru] turn into soyjaks randomly picked from [[OnionsBooru|booru.soy]]. "Because the bulk amounted to 1 Gigabyte, I've split it into 3 sets for download"<ref>https://web.archive.org/web/20211130114057/https://soyjak.party/raid//res/14080.html</ref>: | |||
* https://soyjak.download/f.php?h=2K-DMt-A | |||
* https://soyjak.download/f.php?h=3MmqWzMs | |||
* https://soyjak.download/f.php?h=3QYYBb5M | |||
= Citations = | = Citations = |
Revision as of 08:48, 30 January 2022
This page is coal. (You) WILL help by expanding it. 'ostin 'ems on /a/.
Hiding in GIFs
You can hide a jak in a GIF image, but it's not as trivial as hiding in a static image. Hiding a jak in a GIF is a matter of making a slideshow GIF with at least 2 frames: the original image, and the reveal. You can also set a time delay between frames according to when you want the jak to reveal.
On 4chan, the thumbnail of GIF posts is always the first frame. By setting no delay between the reveal, and disabling looping, you can make an image that looks normal in the thumbnail, but "magically" turns into a soyjak when expanded.
Tools:
GIMP
ImageMagick
ImageMagick is a command-line image editor. Once comfortable with the tool it can be faster to make stealth jaks with it instead of a graphical program. You can re-use commands by simply changing the input files (highlighted in bold). This command makes a "thumbnail reveal" for 4chan:
magick <filepath of bait image> <filepath of reveal image> -resize '%[fx:u.w]x%[fx:u.h]^' -gravity center -extent '%[fx:u.w]x%[fx:u.h]^' -loop 1 -delay 0 output.gif
Options you may want to change are italicized.
- -loop
- Set to 0 to loop forever, set to 1 to disable looping, that is, simply stop at the last frame.
- -delay
- Set the delay in centiseconds (100ths of a second). -delay 100 would delay 1 second; 2000 would delay 20 seconds, and so on. Set 0 for no delay, obviously.
Scriptfag made a dataset of 3000 "thumbnail reveal" gifs, using randomly-picked images from boorus. Coomer bait images taken from safebooru turn into soyjaks randomly picked from booru.soy. "Because the bulk amounted to 1 Gigabyte, I've split it into 3 sets for download"[3]:
- https://soyjak.download/f.php?h=2K-DMt-A
- https://soyjak.download/f.php?h=3MmqWzMs
- https://soyjak.download/f.php?h=3QYYBb5M