Problem: PSP X7 slow/hangs when trying to expand selection

[Oatmeal]

I have an image that is 5000 x 5000. I used Magic Want to select the image's outline, inverted the selection to grab the object I wanted then selected Expand from the Selections - Modify menu. Here the selection process slows down to the point you'd think the program is hung. It may eventually finish if you don't have 'Preview on Image' selected.

When you click OK to finalize the selection change, PSP X7 uses 25% of my CPU (assuming 100% of one core?) and the progress bar that appears does nothing. It will finish after a minute or two but way slower than it used to in X6.

Unfortunately I deleted my warranty support code (any way to have it resent) or I'd submit this for their review.

CPU: i5 2500K
GPU: GTX 770
Ram: 8GB
OS Drive: SSD
Program Drive: SSD
Data Drive: > 1TB mechanical
OS: Win 7 64-bit
PSP Version: X7, latest patch

[hartpaul]

I can verify a slowness in this operation, which is dependent on the size of teh image and the size of the expansion.
What I did:
1. 5000 x 5000 pixel transparent canvas. Placed a red octagon about 4800 pixels across and merged down.
2. Magic wand, selected the red octagon. then Selections > Modify > Expand and timed the changes
Results in X7
Expansion Time
15 pixels - 10 seconds
30 - 25
70 - 1min-54sec
98 - 3 min 39sec

In X6
98 pixels 3min 6 sec ( 33 sec faster)
In all cases the CPU went up to 25-27% usage.

Most people do not come across this as they would not be modifying the feathering of an image almost 5000 x 5000 pixels.
If this is meant to be used in something like a vignetted image (feathered at the edges) then perhaps a Vignetted Frame would be better used.

[Cassel]

Expand, feather and smooth are notoriously slow processes on large images (and i only use a max of 3600x3600!)