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- Path: bmecg.bme.ohio-state.edu!xiaoyi
- From: xiaoyi@bmecg.bme.ohio-state.edu (Xiaoyi Wu)
- Newsgroups: comp.graphics.algorithms,comp.lang.c,sci.image.processing
- Subject: Re: 2D image rotation problem
- Date: 15 Jan 1996 20:04:49 GMT
- Organization: Biomedical Engineering OSU
- Distribution: world
- Message-ID: <4dec11$jg5@charm.magnus.acs.ohio-state.edu>
- References: <4de7gt$j0i@charm.magnus.acs.ohio-state.edu>
- Reply-To: xiaoyi@mozart.bme.ohio-state.edu (Xiaoyi Wu)
- NNTP-Posting-Host: bmecg.bme.ohio-state.edu
-
- Just thought I might make things a bit more clear
- here:
-
- The FAQ talked about doing a reverse rotation to
- avoid holes in the rotated image, which I followed.
- The question is: even if you do it the reverse way,
- you still end up with some pixels that fall out
- of the range of the source image. How do you deal
- with this - for now, I just arbitrarily assign them
- the same value as the boundary pixels. Is there a
- better way?
-
- Thanks.
-
- In article <4de7gt$j0i@charm.magnus.acs.ohio-state.edu>,
- xiaoyi@bmecg.bme.ohio-state.edu (Xiaoyi Wu) writes:
- > Path: magnus.acs.ohio-state.edu!bmecg.bme.ohio-state.edu!xiaoyi
- > From: xiaoyi@bmecg.bme.ohio-state.edu (Xiaoyi Wu)
- > Newsgroups: comp.graphics.algorithms,comp.lang.c
- > Subject: 2D image rotation problem
- > Date: 15 Jan 1996 18:47:57 GMT
- > Organization: Biomedical Engineering OSU
- > Lines: 12
- > Distribution: world
- > Message-ID: <4de7gt$j0i@charm.magnus.acs.ohio-state.edu>
- > Reply-To: xiaoyi@mozart.bme.ohio-state.edu (Xiaoyi Wu)
- > NNTP-Posting-Host: bmecg.bme.ohio-state.edu
- > Xref: magnus.acs.ohio-state.edu comp.graphics.algorithms:26053
- comp.lang.c:153880
- >
- > I did read the FAQ and digged up Graphics Gems, but
- > no source code was given. So, here it comes:
- >
- > I need to rotate a 2D image by a specified angle with
- > respect to a specified point within the image.
- >
- > Has anyone written a program like this before? I'd
- > greatly appreciate any inputs.
- >
- > Thanks.
- >
- > Xiaoyi
-