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Help I accidentally a wigglegram

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Re: Help I accidentally a wigglegram

#82

Earlier quoted context omitted.

there are vp9 and av1 as well

for gifs? it seems an image format would be more backward compatible with older devices. Edit: by image format, i meant lightweight animation without a video codec.

The sites like tenor/giphy/klipy all convert to multiple media formats and then have meta embed properties with multiple formats.

Sites/apps like Discord sometimes consume the mp4 instead of gif or webp when embedding (and in Discord's case they're not hotlinking, I believe they're running it through their own media proxy service).

For example, https://klipy.com/gifs/begone-witch> turns into (with ARIA GIF label!) and src https://images-ext-1.discordapp.net/external/kQT1eR3Sa6g3mZ_...>

7.1 MB gif => 679 KB mp4

Re: Help I accidentally a wigglegram

#83

Earlier quoted context omitted.

for gifs? it seems an image format would be more backward compatible with older devices. Edit: by image format, i meant lightweight animation without a video codec.

hi initramfs, i responded to robottoaster who referenced patent encumbered mp4, as alternatives there are vp9 and av1. image formats are more backward compatible, but at some point one has to ask, how low do you want to go? vp9 plays on iphones from 2020 and android phones from 2010. I think animated avif files are basically av1 video files, like animated webp is vp8/9 video. Animated gif is playable anywhere, but 10…

hi fseifken,

Thanks for the response and I agree there are benefits to newer formats. I actually do prefer newer codecs when I am using a newer system, such as AV1 (I actually wrote a blog post on that yesterday https://inavoyage.blogspot.com/2026/06/720p-on-384kbps-how-h...), and recall avif, but forgot about it.

I think .avif sounds preferrable since it is single frames able to play animations using the same library as av01. I am curious how much CPU usage it needs for a just a few frames. A Pentium 1 might not be able to play it easily, but I imagine a dual core Intel E6400 wouldn't have much of an issue, even if it is 20 years old.

Yeah, basically the only reason I suggested older support was because it was just a couple frames (maybe 5 tops), as opposed to something that uses hundreds or thousands of frames.

Re: Help I accidentally a wigglegram

#85
post #65

I have often wondered how the effect was created where e.g. in a documentary you see historic black and white photographs slowly 'camera panning' or zooming somewhat from left to right with a perspective shift. Is that also created as a wigglegram on the basis of multiple photographs I wonder, at times where taking a single photograph was an involved process?

They have to take a source photo, decompose it into "layers" (lots of Photoshop I imagine) and then they can parallax the various layers for that depth effect.

One great use of AI/ML is that splitting photos into layers these days is infinitely easier than it used to be.

Re: Help I accidentally a wigglegram

#89
post #6

That was fun, and the script on github looks hand-written which is refreshing after having been reading AI-written code for months. I have 120k photos in iCloud that I'm sure have duplicates (I exported my library to Google Photos years ago and exported it back to iCloud). The iOS duplicate detection stopped flagging duplicates for me to merge a while back. I gotta do something like this script...

If you're really wanting to do perceptual hash based deduplication, use multiple, heterogeneous hash algorithms (phash, dct hash, mean hash, ...) as it is likely that a given hash algo will happily lossily match with very very different images--but if all hashes match, you're much less likely to have false positives.

I wrote up what I do here: https://photostructure.com/guide/what-do-you-mean-by-dedupli...

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