Re: CIImage slower than NSImage?
Re: CIImage slower than NSImage?
- Subject: Re: CIImage slower than NSImage?
- From: Kenny Leung <email@hidden>
- Date: Tue, 22 Nov 2005 09:54:55 -0800
Also, the 128-bit floating point version of an image performs better
than the 32-bit integer version!
-Kenny
On Nov 22, 2005, at 9:27 AM, Milton Sagen wrote:
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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