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Automatic Image resizing broken?

 

Hi folks,

Has anybody noticed that the attached-image resize doesn't seem to be working?? I have our group set to reduce images to 1024x1024, but we got a posting last night with a set of 3 jpg attachments (6720x4480 pixels each) that totaled some 14 megabytes, all of which were passed on through unchanged.? We're on the free tier, and would like to keep it that way for as long as possible.

The images were of the comet A3, taken by a DSLR.

Thanks,

Greg D
 

On Mon, Oct 14, 2024 at 12:50 PM, Greg D wrote:
Has anybody noticed that the attached-image resize doesn't seem to be working?? I have our group set to reduce images to 1024x1024, but we got a posting last night with a set of 3 jpg attachments (6720x4480 pixels each) that totaled some 14 megabytes, all of which were passed on through unchanged.
I'm unable to replicate this. Are you sure your settings are correct?
?
There's one in Message Policies ("Max Photo Size in Email") and a second one in Features ("Max Size in Photos section").
?
Regards,
Bruce
 

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Settings seem correct.? Max photo size in email under Message Policies is "Resized to a max of 1024x1024".? Under Features there is no option, as this is a free account.

Greg D


Bruce Bowman via groups.io wrote:

On Mon, Oct 14, 2024 at 12:50 PM, Greg D wrote:
Has anybody noticed that the attached-image resize doesn't seem to be working?? I have our group set to reduce images to 1024x1024, but we got a posting last night with a set of 3 jpg attachments (6720x4480 pixels each) that totaled some 14 megabytes, all of which were passed on through unchanged.
I'm unable to replicate this. Are you sure your settings are correct?
?
There's one in Message Policies ("Max Photo Size in Email") and a second one in Features ("Max Size in Photos section").
?
Regards,
Bruce
 

On Mon, Oct 14, 2024 at 08:57 PM, Greg D wrote:
Settings seem correct.? Max photo size in email under Message Policies is "Resized to a max of 1024x1024".?
What is the image format? Groups.io may not be recognizing it as a photo.
?
Bruce
 

On Mon, Oct 14, 2024 at 05:50 PM, Greg D wrote:
I have our group set to reduce images to 1024x1024, but we got a posting last night with a set of 3 jpg attachments (6720x4480 pixels each) that totalled some 14 megabytes, all of which were passed on through unchanged.
It shouldn't have made any difference, but could you check in your Activity log to see if the offending message and its attachments were sent by email or by the web composition window.
?
Also Bruce asked:?
?
What is the image format? Groups.io may not be recognizing it as a photo.
?
From the section quoted above (part of the original; query) the images were jpg format.
?
Chris?
 

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Interesting...?

So, the images were posted via email.? I posted a couple of my own shortly after (these are pictures of the Comet); mine were resized by Groups, his were not.? But when I look at the messages in the Event Log, click on the attached images, I see mine in their resized state.? Clicking on his, my browser asks if I want to save them.? Both of the files are .jpg's, but clearly his are somehow different.? Mine are from my cell phone, his, I believe, are from a DSLR.

I'll ask what sort of camera he's got, and if the images were processed in some way.? I suspect they were...

Thanks for the help,

Greg D


Chris Jones via groups.io wrote:

On Mon, Oct 14, 2024 at 05:50 PM, Greg D wrote:
I have our group set to reduce images to 1024x1024, but we got a posting last night with a set of 3 jpg attachments (6720x4480 pixels each) that totalled some 14 megabytes, all of which were passed on through unchanged.
It shouldn't have made any difference, but could you check in your Activity log to see if the offending message and its attachments were sent by email or by the web composition window.
?
Also Bruce asked:?
?
What is the image format? Groups.io may not be recognizing it as a photo.
?
From the section quoted above (part of the original; query) the images were jpg format.
?
Chris?
 

On Tue, Oct 15, 2024 at 12:21 PM, Greg D wrote:
Clicking on his, my browser asks if I want to save them.? Both of the files are .jpg's, but clearly his are somehow different.
Since your browser cannot open them, this suggests that they are not actually jpegs.
?
Regards,
Bruce
 

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Well, that's what I thought, too.? But the browser (Firefox, in this case) says it's a JPEG image, so it's at least vaguely familiar to the browser.? The question is what might be tripping them (my browser and Groups.io) up.? Both seem to be finding something odd about the images.



The thing is, they display just fine in the email I got, and the images display in Firefox just fine when opened directly.

As for the picture's pedigree, here's what the poster told me:
The shots I sent out where taken with a canon EOS 5Dmark IV camera on a tripod but not guided.? I compressed them from ~ 20 megabyte? Jpegs to ~4 megabyte Jpegs so that the server would reject them. I did a little post processing to remove some noise and remove some hot pixels with picture window 7 an old program which is no longer supported but works fine.
The Picture Window 7 software (presumed the last piece in the chain) has apparently been superseded by version 8, but it's still available for download.? We're going to try a few things, but in the mean time I've asked that they manually reduce the size of the images before posting.

Greg


Bruce Bowman via groups.io wrote:
On Tue, Oct 15, 2024 at 12:21 PM, Greg D wrote:
Clicking on his, my browser asks if I want to save them.? Both of the files are .jpg's, but clearly his are somehow different.
Since your browser cannot open them, this suggests that they are not actually jpegs.
?
Regards,
Bruce
 

On Tue, Oct 15, 2024 at 06:54 PM, Greg D wrote:
The question is what might be tripping them (my browser and Groups.io) up.?
A shot in the dark, but unlike the JPEG Standard encoding which everyone has no problems with, I have seen before a few apps sometimes having problems with Lossless encoding and once or twice with Progressive encoding. Ask him what encoding he used, if he knows. Usually that setting is viewable wherever Save As JPEG is used, or it's set somewhere in the app settings.
?
Cheers,
Christos
?
 

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Hi Christos,

Ah, you may be on to something...? Most software has an option for how much compression to apply to a JPEG image; I bet they've got it cranked all the way toward lossless.?

I've asked about this; will report back.

Greg


Christos Psarras via groups.io wrote:

On Tue, Oct 15, 2024 at 06:54 PM, Greg D wrote:
The question is what might be tripping them (my browser and Groups.io) up.?
A shot in the dark, but unlike the JPEG Standard encoding which everyone has no problems with, I have seen before a few apps sometimes having problems with Lossless encoding and once or twice with Progressive encoding. Ask him what encoding he used, if he knows. Usually that setting is viewable wherever Save As JPEG is used, or it's set somewhere in the app settings.
?
Cheers,
Christos
?

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