a6k Loc: Detroit & Sanibel

This is only one case and I don't know if it generalizes well.
The original is from an iPhone 6s. No raw available.
The HEIC is smaller which is one of the claims for it.
The appearance on my 4K monitor is the same as far as I can tell.
I generated the two files using Pixelmator Pro, latest version, on my MacBookPro. I used best quality where that choice was available. The image you see here is the output from the editor, not the SOOC JPG.

I have included here..
# a snapshot of the Finder showing both files and the saved Pixelmator working file.
# a snapshot of both files, side by side, the entire photo.
# a snapshot of both files at "100%" AKA one pixel per one screen pixel - a central portion, of course.
# the downloadable JPG (not bothering to include the HEIC since so few can use it).

The HEIC is on the left. You can see the filenames at the top of the display. Both files have the same nominal dimensions.

As Peggy Lee would say, "..is that all there is?". The space savings in this case are substantial but I don't see any quality difference. I plan to experiment with a case that starts with a Sony raw file. Later.
FYIO

(Download)


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(Download)

CHG_CANON Loc: the Windy City

Here we go again ...

Screen captures of your monitor means ZERO, ZIP, ZILCH, NOTTA, NOTHING, and so forth. Attach the actual files both supporting your analysis. Only then is there any basis of discussion.

The file size benefit seems significant. But, that is the only screen-capture / statistic that is useful just as a screen capture. Other relevant comparisons, with attachments, is the 'highest quality' JPEG (least compression) vs the 'standard' size HEIC.

rmalarz Loc: Tempe, Arizona

--Bob

a6k Loc: Detroit & Sanibel

I did include the JPG. I caught lots of pushback from many about the HEIC. Are you just determined to find fault with my effort to simply be informative? It seems that way from here.

I provided 4K screenshots. Short of pixel peeping, that's pretty good. In addition, my 4K screenshots include one at 100%.

If you had wanted to see the HEIC you could have simply asked. You obviously want to criticize me rather than examine the files. You can look it up that I recently included an HEIC which can only be downloaded because it won't show as an image on UHH and many said that their computers could not open it. So for the very few, here ya go.

Attached file:
(Download)

a6k Loc: Detroit & Sanibel

Oh, just to make it even clearer, both the JPG and the HEIC were exported from Pixelmator Pro at the best quality available. Nitpick anyone?

CHG_CANON Loc: the Windy City

I know, it seems really rough to have the fans throwing bottles from the stands. But, here again, we've seen the team so many times driving to the one yard line and then just turning the ball over on downs. We see this play every season and want a score, not excuses. Thanks for attaching the necessary files.

a6k Loc: Detroit & Sanibel

It's not rough, just pointless. I make no excuses. My intent is only to inform. My criteria include making it easily informative for the most people. The very, very few who want to see the HEIC are welcome to it, of course.

I'm not a sports person so your analogy is lost on me. It might also be lost on many who are not in North America, btw. You could have used some analogy that was understood by everyone who reads UHH.

gvarner Loc: Central Oregon Coast

Get the Pro Camera app for your iPhone. It can take photos in RAW.

a6k Loc: Detroit & Sanibel

Mine is a 6s. I can take something like raw but not the same as the newer models. In this case, I was walking the dog and really couldn't do much beyond launching the camera that comes with the phone.

Thanks, though, for the thought.

SuperflyTNT Loc: Manassas VA

I could have told you that. Although the HEIC specs allow for 16 bit depth the Apple implementation is 8 bits, same as JPEG. The biggest differences are gonna be better compression and HEIC is a container that can contain several images which allows for things like iPhone Live Photos.

MJPerini

I do appreciate your efforts, thank you. HEIC is a much more Modern take on Compression with more potential flexibility. As old as JPEG is, it really is quite an amazing technical achievement.
It would be interesting to see how good HEIC could be if we kept the size the same as JPEG but let quality increase.
I haven't yet seen that kind of comparison, or one that uses HEIC's 16 bit capability, but it would be interesting to see.
Thanks for your efforts

CTTonymm Loc: Connecticut

[quote=a6k]This is only one case and I don't know if it generalizes well.
The original is from an iPhone 6s. No raw available.

I used the iphone 6S for 5 or 6 years and got lots of mileage and good photos using it. There are some apps for iphone you can install that will provide RAW capture. I have been using Halide and consider it quite adequate for me (allows more flexibility on exposure settings and captures RAW or compressed files. Am now using iphone 13 Pro and find higher quality for sure.

stangage

A side note on HEIC files. Apparently Adobe LRcc doesn't appreciate these files. To show its distaste it locks up. But once that is the file that you closed on when using the "Close app" function in Windows 10 that is the file LRcc will try to open with when you restart the LRcc APP.
Kind of messy to undo the problem. First rename the HEIC polluted catalog to some temp name.Then had to create a new Catalog giving it the name of the catalog that had the HEIC files but with only one folder with no HEIC files. Then could restart LRcc. Then cleanse the renamed catalog of HEIC polluted files. Then unrenmae everything so that I can get back into the catalog that has almost 4T of edited photos. Now that LRcc reopens and it can't find the polluted folders you can go back to remove those folders that had HEIC files that LRcc may look for.
Needless to say I won't EVER try to bring a photo folder from my iphone into LRcc again. I only did it so I could edit the file size down to something that I could e-mail. Sadly there are a number of other iphone functions that when ones tries to integrate into a cross platform activity things come crashing to a halt.

a6k Loc: Detroit & Sanibel

The Apple implementation in this case is not relevant because the original image was a JPG. The HEIC was created by Pixelmator Pro on a Mac. You may have missed that I said this in the beginning.

a6k Loc: Detroit & Sanibel

[quote=CTTonymm]

Agreed that there are some apps which can do much better. I use one a lot: "645 Pro". Halide has an excellent reputation as far as I know but most of its advantages appear to be for the newer devices.

In this case, the original JPG was done with the camera app that came with the phone and its OS because, as I said earlier, I was walking my dog and really couldn't devote that much attention and dexterity to a better app. That said, I think the picture is pretty good, even on my 27" 4K BenQ.