Re: CIImage slower than NSImage?
Re: CIImage slower than NSImage?
- Subject: Re: CIImage slower than NSImage?
- From: Milton Sagen <email@hidden>
- Date: Tue, 22 Nov 2005 09:27:35 -0800
I can't shed any light on it, but I found this to be true of scaling
also, by about a factor of three. However, that was on the original
PB 17". I haven't tried it on a newer machine with a newer graphics
card. Maybe that's where the problem lies. Then again maybe CoreImage
is at this point in time simply slower for these relatively simple
operations and its power lies elsewhere.
Milt
On Nov 22, 2005, at 09:00, Kenny Leung wrote:
Hi All.
I am using CoreImage in my application, and I'm finding that
geometric operations, particularly rotation, are much slower with
CIImage than NSImage. In fact, rotating an NSImage causes no
noticeable slowdown while rotating a CIImage causes a very
noticeable slowdown.
Also, applying a transform to a CIImage as a filter yields
different results than when the transform is applied to the current
graphics context.
Can someone shed some light on this?
Thanks!
-Kenny
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