Images imported are being whited out/pixelated

[roseha]

I don't know what is causing this and I am at my wit's end.  I am trying to import tif images that I previously had no problem with until a couple of days ago.  When I import them into Affinity they become whited out with a pixel grid over them.  Then I cannot keep this from happening again even if I try to fix them in levels (which doesn't put them back to normal). When I import the same images into Photoline this also happens, but when I import them into Lightroom or Acorn they look normal (at least fixable in Lightroom).  I am very concerned.   I have a lot of experience with Photoshop (which I no longer use due to subscriptions) so I think there is a setting that I have to undo but please advise.  Attached is a screenshot of what is happening (black and white square image saved as a jpeg).

Edit: I am using version 1.10.6 on Mac Catalina 10.15.7.

[walt.farrell]

Can you zip the TIFF file and share that?

[roseha]

I'll try but the zip will still be very large.  It seems to possibly respond to the levels setting but I can't fix it back to the way it was before.   I don't know if it a mask, I don't use masks not on purpose anyway.  I don't know if it's a layer but I only see background layer displayed.

It is happening with multiple images so I'm afraid to work on anything important at this point.

Thanks

Killarmey-Flowers-New-1.tif.zip

[roseha]

Just to explain the first image is a pinhole photograph, here is a more conventional color photo.  Or it was.  The screenshot is how it looks when I open it in Affinity and the zip is what I get when I zip the original tif afterwards.  thanks

 

screenshot2.zip

[lacerto]

Obsolete.

[firstdefence]

Even Adopey Photoshop CC opens these files brighter than they appear in Preview.

Pixelmator Pro opens the file correctly so I exported the file as a tiff file and Affinity opens the file as Pixelmator Pro does. I can vaguely remember there were discussions about tif over tiff files a while back, so I wonder if it's the tif that's the issue because all the info is there as can be seen with this exported file from Pixelmator Pro, see zip file attached.

Killarmey-Flowers-New-1 copy.tiff.zip

 

With regard to the original file, there is a 32bit preview panel that you can enable and also changing the format to 32bit Adobe RGB 1998 linear kind of helps but I can only get a translucent image.

[walt.farrell]

4 hours ago, lacerto said:

Affinity Photo (both v1 and v2) is for some reason opening these images in different color mode (RGBA/16, instead of linear RGB/32 shown in Photoshop):

I'm not a Photoshop user, but I'm curious whether there's any significance to what PS showed: RGB/32* or to the * at the end of the message.

[MEB]

Hi @roseha,
Welcome to Affinity Forums
Thanks for reporting this. I've logged the issue and passed the files to the dev team to be inspected.

[lacerto]

Obsolete.

[loukash]

9 hours ago, firstdefence said:

in Preview

I opened the TIFF in Preview and saved it without alpha channel.
That fixed it.
In other words, there was some data that is being falsely "moved" to alpha when opened in Photo directly.

[firstdefence]

5 hours ago, walt.farrell said:

I'm not a Photoshop user, but I'm curious whether there's any significance to what PS showed: RGB/32* or to the * at the end of the message.

Actually, If you see an asterisk (*) inside the brackets as in next to the 32, it means your image is in a colour profile other than your working space default. If your working space is Adobe RGB and your image is too, then no asterisk, but if instead you open a file in sRGB, it will have an asterisk at the end of the title bar information to let you know about the profile mismatch. This isn't a bad thing necessarily since you could easily have opened it this way on purpose. Photoshop is just subtly letting you know about the situation.

The one outside means you have made changes but not saved yet.

 

[firstdefence]

4 hours ago, loukash said:

I opended the TIFF in Preview and saved it without alpha channel.
That fixed it.
In other words, there was some data that is being falsely "moved" to alpha when opened in Photo directly.

Nice quick fix.

[roseha]

Thanks all but I have tried exporting the color image as a tiff but it still opens the same way in Affinity.   I can open it normally in Preview (as well as Acorn) but I still don't know what the Affinity issue is.

Hoping there is a simple solution to this?

[firstdefence]

Have you tried @loukash workaround?

Quote

I opened the TIFF in Preview and saved it without alpha channel.
That fixed it.
In other words, there was some data that is being falsely "moved" to alpha when opened in Photo directly.

 

[firstdefence]

5 hours ago, loukash said:

I opened the TIFF in Preview and saved it without alpha channel.
That fixed it.
In other words, there was some data that is being falsely "moved" to alpha when opened in Photo directly.

Actually it's not the transparency that's the problem as I've just used Preview to export to a tiff file and left the transparency option checked, I think the it works because it goes to 16bit

[loukash]

35 minutes ago, firstdefence said:

Nice quick fix.

That was on Catalina, by the way.
Currently working in El Capitan, the old Preview can't deal with it either.
PS CS5.1 shows the same symptoms as your PS CC

[loukash]

From what I see in the Channels panel, I have a "vague" theoretical idea how to fix it in Photo but I don't know off the top of my head how to proceed (apart from being currently busy with something totally different: FileMaker database programming)
Basically I would try to copy the alpha channel values and add them to each RGB channel.

[firstdefence]

Just had an epic mess around with channels and you can get a semblance of the image barring the small darker area's which end up being unsightly marks and effectively ruins any process.

File > Export... from Preview as an OpenEXR file allows affinity to open the file as:  even though it's exported as 16bit so not sure if the 32bit data is retained or not, any way of finding out?

Killarmey-Flowers-New-1 copy.exrApprox 26Mb 

[roseha]

Hi thanks for all this but I don't think this fixes the real issue which is why the images are opening this way in Affinity?  I still have decent copies of them that I can open in other software but Affinity is still opening tiffs/tifs whited out.

I just need for them to open normally without having to alter the color profile/channels if I am understanding all this?

[firstdefence]

What we are doing is trying to figure out why Affinity Photo is opening your tif files like it does, sometimes it's good to document efforts, it may help people further down the line with troublesome files that they can maybe fix until a patch becomes available. Ultimately it's the backend that will have to be fixed but for now there is a workaround from Loukash until that patch appears.

[walt.farrell]

16 minutes ago, roseha said:

but I don't think this fixes the real issue which is why the images are opening this way in Affinity? 

Given that several other applications show the same kind of issue with your file, I think the real question is what's wrong with the file, not what's wrong with Affinity.

[roseha]

Okay thanks

I have been able to use the workaround that Loukash posted (saving without the alpha channel).  Still concerned but thanks for all the suggestions.

[lacerto]

Obsolete.

 

[v_kyr]

[Alessandro Colleoni]

The same problem with the raw file from my Nikon d3 !!!!
Affinity 2.0.4 on IPad