Oh, I reproduced the error Access is denied. I think it occurs after an update.
gmic h compose_channels
Access is denied.
compose_channels:
Compose all channels of each selected image, using specified arithmetic
operator (+,-,or,min,...).
Default value: '1=+'.
Example: [#1] image.jpg +compose_channels and
Tutorial: https://gmic.eu/tutorial/_compose_channels.shtml
I am still getting the error after the switch and can confirm that it happens after an update, if not for other forgotten reasons. And to place it all in one post, it triggers a report that MS tries to send home, which is caught by my firewall.
As for the second problem (with help), my current workaround is to modify update297.gmic instead of relying on user.gmic. Not as proper as I would like.
Could you try to run gmic in debug mode and copy paste the log somewhere?
It may be related to the new ‘delete’ command used to remove temp files.
We have to find what is going on. I don’t have this on my W7.
Without thinking much about it, I used the command rgb2lms. It didn’t have a help entry, so I tried looking for its source on GitHub but to no avail. I know I can use e $$rgb2lms to print the source but it would be great to know where it is from. Just curious.
Once I saw that your update would work in 2.10.24, I installed the updated G’MIC to make sure in worked in the older GIMP before upgrading. GIMP 2.10.24 and G’MIC 2.9.7 work well together, David. Thanks.
Some problems with writing webp file format. Don’t know if gmic (2.9.8, MacOS), convert or gm are responsible. At least gmic shows 4 channels with spurious pixels in the “transparent” region, rsp. where channel 4 is zero.
I’m not able to load example images, heic (rgba input) and webp (rgba output) are not accepted for upload to pixels.us!
I did
gmic example.heic o {b}.webp
and
gmic example.webp