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re: HEIC is a terrible file format.
Posted on 10/8/26 at 10:48 am to Lonnie Utah
Posted on 10/8/26 at 10:48 am to Lonnie Utah
JPG does the same, feels like you're just mad apple pays to license HEIC. Anything other than raw is gonna cause you problems due to how the algorithms work.
Posted on 10/8/26 at 10:56 am to j1897
quote:
JPG does the same, feels like you're just mad apple pays to license HEIC.
You're 100% right. Jpg does this. The difference is the AMOUNT of compression in jpg files vs HEIC files. Heic's are compressed to in excess of 50% of what JPG's are. When you compress things THAT far you simply lose too much info on the back end. To do that, it takes the standard 8x8 pixel blocks that jpg looks at and expands it out to up to 64x64 pixel blocks. If you want to have your eyes opened do the math on what happens to the 48 MP iphone 16 images when you run them thru that level of compression.
And if I'm pissed over $0.99 then I've got bigger issues.
This post was edited on 10/8/26 at 11:37 am
Posted on 10/8/26 at 11:05 am to Lonnie Utah
quote:
it out to 64x64 blocks.
That is very misleading though isn't it?
Posted on 10/8/26 at 11:09 am to j1897
quote:
That is very misleading though isn't it?
No. This is exactly what it does in areas of similar pixels. Not everywhere, but in areas like the sky, they absolutely reduce things that far. And if you look at my comments in my original post as to where I'm (or was) seeing problems, that's exactly where the compression artifacts show up.
This post was edited on 10/8/26 at 11:12 am
Posted on 10/8/26 at 11:18 am to RoyalWe
quote:
I view them on my 30+ inch ultrawide monitor
Is it an apple product? The reason I ask is because Apple products use dedicated hardware acceleration and software smoothing to hide the compression artifacts on Macs and iPhones.
Posted on 10/8/26 at 11:22 am to Lonnie Utah
I think you mean to say "up to 64x64" blocks. It's variable, which is why it offers considerably better compression than jpeg.
Posted on 10/8/26 at 11:32 am to j1897
quote:
I think you mean to say "up to 64x64" blocks.
Not only did I mean to say it, I actually said it.
eta: Full disclosureI did not say it in my original version of the post. At some point I edited it. It was my original intention. I don't know at what point the edit happened.
quote:
To do that, it takes the standard 8x8 pixel blocks that jpg looks at and expands it out to up to 64x64 pixel blocks.
The difference is jpg's are locked at 8x8.
This post was edited on 10/8/26 at 12:53 pm
Posted on 10/8/26 at 11:34 am to Lonnie Utah
Windows 11 PC from Origin PC. 
Posted on 10/8/26 at 11:35 am to RoyalWe
DUnno then...
Posted on 10/8/26 at 11:35 am to j1897
quote:
that shows you know dick all about codecs.
Yup, you sure did.
Double down. Awesome!
Posted on 10/8/26 at 1:16 pm to AlxTgr
Boomers and their emojis.
Posted on 10/8/26 at 1:21 pm to Lonnie Utah
quote:
eta: Full disclosureI did not say it in my original version of the post. At some point I edited it. It was my original intention. I don't know at what point the edit happened.
Makes more sense, I was kinda nitpicking anyway.
Posted on 10/8/26 at 2:16 pm to j1897
quote:Boomers just don't bother me. Do they use emojis more than the rest of us?
Boomers and their emojis.
Posted on 10/9/26 at 11:43 am to Lonnie Utah
Being an old post this may not be relevant. ImageMagick for heic conversions to jpeg works fine for me the few times I've needed it.
Posted on 10/9/26 at 12:02 pm to Tree_Fall
quote:
ImageMagick for heic conversions to jpeg works fine for me the few times I've needed it.
It's no the conversions that I take issue with. I have Adobe creative cloud so that part is easy. It's what happens AFTER the conversion that I take issue with.
Posted on 10/9/26 at 12:35 pm to Lonnie Utah
quote:It just works
HEIC is a terrible file format.
Posted on 10/9/26 at 1:52 pm to Big Scrub TX
quote:
It just works
Yes. It works great for what it was designed for. Compressing high MP images into a device with limited storage. It works great and they look great if your looking at those images on a 6" screen.
However, if yo want to crop in to those images, and try to manipulate the highlights, shadows for modify the colors, it's AWFUL.
Posted on 10/9/26 at 3:04 pm to Lonnie Utah
I’ll chime in: watching HEVC/h.265 makes me feel like I’m watching a cartoon. I don’t think it’s the block algorithm, I think it’s the filtering. Even worse on security cameras(negotiating noise). HEVC shouldn’t even be admissible in court it ruins so much.
I instantly know when I’m watching a movie in h.265 and I’m not even a picture nerd. I buy the cheapest tv I can find.
I’ll go a step further and say 4k is worse than 720p a lot of times because the compression ruins it.
I instantly know when I’m watching a movie in h.265 and I’m not even a picture nerd. I buy the cheapest tv I can find.
I’ll go a step further and say 4k is worse than 720p a lot of times because the compression ruins it.
This post was edited on 10/9/26 at 3:11 pm
Posted on 10/11/26 at 3:59 pm to Lonnie Utah
I always change file format to jpg and apple turns it back to heic everytime they update. And I forget until I need to do something with the files and I’m like “shite!”
Posted on 10/15/26 at 5:51 pm to Lonnie Utah
HEIC is a pita.
After every damned o/s it automatically turns it on.
Don’t need more image file formats.
After every damned o/s it automatically turns it on.
Don’t need more image file formats.
This post was edited on 10/15/26 at 5:53 pm
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