problem with 32 bit tif

[rikkarlo]

heightPROVA_normalized.tiff

Goodmorning, 

I'm trying to import this 32 bit TIFF but it imports it as 16 bit.
In photoshop it imports it properly, and in the metadata it is indicated 32 bit. 

 

Talking about 32 bit bugs, if I select any colour and then I move the intensity slider, it stutters and does not work.

[lepr]

2 hours ago, rikkarlo said:

Talking about 32 bit bugs, if I select any colour and then I move the intensity slider, it stutters and does not work.

One of countless permabugs. Has been reported numerous times for about a decade. Expect no fix. 

[rikkarlo]

Maybe now that Canva bought Affinity, the management of bug fixing will change?
Hope is the last to die.

[lepr]

Just now, rikkarlo said:

Maybe now that Canva bought Affinity, the management of bug fixing will change?
Hope is the last to die.

After one year, my impression has been a deterioration in the software quality. I’m sticking with 2.4.2 for now. Very disappointing. 

[NathanC]

Hi @rikkarlo,

Grey/32 isn't a supported bit depth currently, so Photo 2 will automatically assign this to Grey/16 and your working profile in Settings -> Colour.

The 32 bit Intensity slider issue is logged internally, I've bumped this issue with your report.

 

[rikkarlo]

5 minutes ago, NathanC said:

Grey/32 isn't a supported bit depth currently, so Photo 2 will automatically assign this to Grey/16 and your working profile in Settings -> Colour.

Ok. What if I switch to a 32 bits colour space after import, will it recover the lost bits at import or not?

Is there any way to preserve all the data maybe converting it to rgb 32 at import?

[NathanC]

35 minutes ago, rikkarlo said:

Ok. What if I switch to a 32 bits colour space after import, will it recover the lost bits at import or not?

Is there any way to preserve all the data maybe converting it to rgb 32 at import?

No, not as far as i'm aware, not after importing into Photo. I believe that it's picking up the Colour space from the 'Photometric Interpretation' attribute in the EXIF, which is set to 'BlackIsZero'. Since it's recognised as a Greyscale Image but 32 bit Greyscale isn't supported it's compressed to the smaller Grey/16 range on import.

If the .TIFF was RGB/32, this same limitation wouldn't apply since this is a supported bit depth.

 

 

[rikkarlo]

2 hours ago, NathanC said:

No, not as far as i'm aware, not after importing into Photo. I believe that it's picking up the Colour space from the 'Photometric Interpretation' attribute in the EXIF, which is set to 'BlackIsZero'. Since it's recognised as a Greyscale Image but 32 bit Greyscale isn't supported it's compressed to the smaller Grey/16 range on import.

If the .TIFF was RGB/32, this same limitation wouldn't apply since this is a supported bit depth.

 

 

ok thanks!