DSS .tif issues

[Bendy777 (Australia)]

Hi people, My first astro image ever. Prepare to laugh... ok so basically, I stacked my images in my pc laptop using DSS with the hopes of transferring it to my Mac Laptop for Photoshop... I go to open up the 112MB .tif files in photoshop and then it pops up saying I dont have enough ram (I have 4gig) So i go through the rediculous process of getting PS on my ACER laptop.... SAME ISSUE! Please tell me theres something i can do other than upgrading them ram in my laptops... sooooooooo cant afford that after buying all the imaging gear! :'(

[Barrykgerdes]

That seems unusual. I have not got any 112MB tiff's but I have plenty of 92MB tiff's and I can load at least 6 (I did not try any more) 6000 x 5000 pixel colour photos into CS2 with 2GB of memory. I would expect CS5 to be better not worse.

Barry

[Bendy777 (Australia)]

Originally Posted by Barrykgerdes

That seems unusual. I have not got any 112MB tiff's but I have plenty of 92MB tiff's and I can load at least 6 (I did not try any more) 6000 x 5000 pixel colour photos into CS2 with 2GB of memory. I would expect CS5 to be better not worse.

Barry

oh dear :/

[pluto (Hugh)]

Some questions:
1. what's the resolution of the .tif?
2. what's the bit depth per channel of the .tif? (I think DSS saves 16bit but the autosaves are 32bit)
3. what version of PS?

We used to have similar problems at work with loading files in old 32bit versions of PS on Mac (pre CS5). They would give out of memory errors when it was obvious there was plenty of free RAM. I don't think we ever found a solution but it doesn't happen on the newer 64bit version of PS (CS5> on Mac and CS4> on Win).

You could download gimp and convert the file to a different format (like a .tga, I've always found Adobe's tif support was a bit funky), I'd bet a dollar that gimp will open it fine ;-)

[Bendy777 (Australia)]

Originally Posted by pluto

Some questions:
1. what's the resolution of the .tif?
2. what's the bit depth per channel of the .tif? (I think DSS saves 16bit but the autosaves are 32bit)
3. what version of PS?

We used to have similar problems at work with loading files in old 32bit versions of PS on Mac (pre CS5). They would give out of memory errors when it was obvious there was plenty of free RAM. I don't think we ever found a solution but it doesn't happen on the newer 64bit version of PS (CS5> on Mac and CS4> on Win).

You could download gimp and convert the file to a different format (like a .tga, I've always found Adobe's tif support was a bit funky), I'd bet a dollar that gimp will open it fine ;-)

Hey man, looks like you may have hit the nail on the head. It's a 16Bit .tif and it's CS5 maybe I should just get the upgrade. I'll deffinately give gimp a go! cheers!

[jjjnettie (Jeanette)]

I had an issue with those files not opening in PS3.
But if I drag and drop the file onto the Photoshop icon on the desk top it opens no problems.
go figure.
but it works for me.

[Bendy777 (Australia)]

Originally Posted by jjjnettie

I had an issue with those files not opening in PS3.
But if I drag and drop the file onto the Photoshop icon on the desk top it opens no problems.
go figure.
but it works for me.

haha computers are soooo weird!

[Bendy777 (Australia)]

Originally Posted by pluto

Some questions:
1. what's the resolution of the .tif?
2. what's the bit depth per channel of the .tif? (I think DSS saves 16bit but the autosaves are 32bit)
3. what version of PS?

We used to have similar problems at work with loading files in old 32bit versions of PS on Mac (pre CS5). They would give out of memory errors when it was obvious there was plenty of free RAM. I don't think we ever found a solution but it doesn't happen on the newer 64bit version of PS (CS5> on Mac and CS4> on Win).

You could download gimp and convert the file to a different format (like a .tga, I've always found Adobe's tif support was a bit funky), I'd bet a dollar that gimp will open it fine ;-)

hey man, you are right, i downloaded gimp and it would not open in gimp either, it said sorry, can open 32bit extensions lol im sooo over this :p

[Joshua Bunn (Joshua)]

Maybe try assigning more RAM to photoshop? Go to edit > preferences > performance and change the memory usage that photoshop uses. try increasing it.

Josh

[jjjnettie (Jeanette)]

try dragging and dropping the file onto the desktop icon.
as I said, it's the only way I can open 32bit files in photoshop.

[whzzz28 (Nathan)]

There is a known bug with a version of photoshop that will crash with out of memory when opening tiff files. Try running the Adobe updater first.

Read some more about it here
m.cnet.com/news/adobe-photoshop-cs5-1201-update-fixes-crashes-and-performance-bugs/20009409

[hotspur (Chris)]

I have this very same problem,I bought a new laptop-6GB RAM 4 GB graphics card,and seriesIII i7,and still that exact same wording comes up when I try to open in CS5,about to give up on astrophotography altogether.

I'll try the 'drag and drop' method JJJ mentions,after that-I'll be in the market for 16 inch dob and argo navis, and just go visual

[naskies (Dave)]

Have you checked that your stacked TIFF from DSS is a valid file? Check the file size - I've noticed that when something goes wrong in DSS (runs out of memory, some kind of internal problem, etc) it will save an output TIFF file that's only 8 bytes! That might be way Photoshop can't open it, i.e. it's not a valid file.

By the way, I've found that I get better results using DSS to do the linear and non-linear stretching, since Photoshop CS5 can only perform "curves" on 16-bit data but DSS does it on 32-bit data.

[pluto (Hugh)]

Well spotted Nathan, thanks!
As it's a know bug did anyone try updating CS5 to 12.0.1 as the article Nathan pointed to suggests? Did it fix the problem?