Re: [APML]: Stacking in Photoshop

[Jerry Lodriguss <jml@astropix.com>]

>I've finally figured out how to stack negatives in Photoshop, but now I keep
>running into illegal operation errors. They happen at various stages of the
>process. I've gotten all the way through a few times and saved as jpeg, but
>the next time I try, I get hit with an illegal operation and have to close
>it down.


It's possible that the program you recently installed has over-written a
DLL file with something that Photoshop doesn't like. I would re-install
Photoshop.






>
>I'm running a Pentium 233 with 32 meg RAM. I know I should have more RAM,
>but I don't think that's the problem. I've tried with smaller files and get
>the same thing.


Do you have 5 times the file size available as free hard drive space for
virtual memory?  You might even want to set up a partition devoted
specifically and exclusively to a Photoshop swap file (virtual memory), and
keep it defragged. Photoshop uses it's own swap file, and manages it
itself, separate from Win95.



>Also, exactly how do you rotate the layer when you're trying to register the
>negs?

 
Paste as a layer, choose DIFFERECE as the option. Then use IMAGE:ROTATE
CANVAS:ARTIBRARY and experiment.

You can use the line tool set to zero pixels and draw from the exact center
of the image to find out fairly closely how much you need to rotate. Blow
up the image and go to the two stars in a corner that need to be aligned
and note the difference between the angle displayed for the line tool in
the info box.

Jerry