Thu, 05 Nov 2026 13:50:21 +0000
Just tested LumenHEIF on my CM4/NVMe machine: launched Lumen, dragged the test 1100k HEIC textfile as downloaded from an iPhone into the Browser and it displayed straight away. The fact that the test object was a text file (i.e. just as downloaded) is noteworthy IMHO – earlier RO apps like DPScan required the correct filetype to be applied, which was an extra step and in the case of HEIC, not available in any case. I’m not a user of RAW, but having seen the range of adjustment available in Andrew’s screenshots, I might well become one! Congrats to him for delivering what looks like a powerful and up-to-date application.
Lumen: a photo library and non-destructive editor for RISC OSThu, 05 Nov 2026 10:50:13 +0000
Use of the word loupe has two unmentioned positives:
It’s shorter than the word “magnifier”.
Plus it widens the knowledge of language, with a quirk that the same spelling is used in both French and English1 so it’s a translation independent item.
1 Probably one of those words the English language ‘magpied’ from elsewhere
Lumen: a photo library and non-destructive editor for RISC OSThu, 05 Nov 2026 10:04:01 +0000
A loupe is a simple, small magnification device used to see small details.
Formerly much-used in the printing trade to assess registration of printed CMYK colours – you could make out the individual printed dots. In this context often referred to as a Printer’s Glass. Now computers do all that stuff. Jewellers use them to assess diamond quality also I believe.
Lumen: a photo library and non-destructive editor for RISC OSThu, 05 Nov 2026 09:40:47 +0000
Also, I’m not exactly clear what Loupe is all about.
Loupe (French) ,
A loupe is a simple, small magnification device used to see small details.
Thu, 05 Nov 2026 09:37:39 +0000
Peter
Groove records/quantizes the external keyboard better than Rhapsody, which is interesting and as I said in another message we can do rerecording.
This is software that should please amateur musicians like me.
For the anecdote with MIDIman I can play a score on your synthesizer, on Groove and an expander!
Wed, 04 Nov 2026 22:47:40 +0000
Thanks all, I'll leave it another day or two and drop them another email.
Lumen: a photo library and non-destructive editor for RISC OSWed, 04 Nov 2026 22:47:18 +0000
Might be worth incorporating file extension checks too – sometimes jpegs/pngs may be stored as other types, but with correct filenames (for whatever reason) eg. NoTypes mode in LM98
Another feature I found myself wishing for was a way to bring up file info from the thumbnail view. Switching to Info down the left reset the main view. I felt like I should be able to press menu over an image and slide off “Info” for a details window like in (say) Paint, to learn more about the image format/properties.
Lumen: a photo library and non-destructive editor for RISC OSWed, 04 Nov 2026 22:23:13 +0000
Is it detecting by file extension or type? It didn’t seem to identify PNGs. Also suggest TIFF (import/export) might be a useful format too, if a little old-school.
With JPEG and PNG it goes off filetype, initially and then checks the file signature to confirm they’re valid JPEG and PNG, if either fail it ignores those files.
With plugin based images it checks all files its presented with and checks the file signatures at the start and finish of the file (the first and last 32KB), it maybe that I need to make the JPEG and PNG do the same.
Lumen: a photo library and non-destructive editor for RISC OSWed, 04 Nov 2026 22:11:47 +0000
Is it detecting by file extension or type? It didn’t seem to identify PNGs. Also suggest TIFF (import/export) might be a useful format too, if a little old-school.
Lumen: a photo library and non-destructive editor for RISC OSWed, 04 Nov 2026 22:05:20 +0000
Andrew, what source image formats are currently recognised? JPEG, RAW, HEIF… which others?
JPEG, PNG, RAW (all formats libRAW can read), HEIC & AVIF.
Also, I’m not exactly clear what Loupe is all about.
A loupe let’s you zoom in on a particular part of a photo to check it / review it so on Lumen you can zoom in 100/200/400%.
Lumen: a photo library and non-destructive editor for RISC OSWed, 04 Nov 2026 21:56:12 +0000
Andrew, what source image formats are currently recognised? JPEG, RAW, HEIF… which others?
Also, I’m not exactly clear what Loupe is all about – is it just zoom?