Image rotation algorithms

Article View: sci.image.processing

Article #224

Back to sci.image.processing Previous Next

#224

From: Seow Aik Siong
Date: Wed, 29 Jul 1992 09:18

14 lines
1142 bytes

Hello,
	I am currently working on a program to rotate a bitmap image using
the very simple transformation alogorithm. However, after compiling my C
program, I discovered that it takes 2 minutes to rotate a 64x64 image!!!
I figure later that the main reason for the slow performance of my program
is due to the fact that I am using simple sine and cosine functions to
manipulate floating point numbers...that is why it took so long.
	If there is anyone out there who can offer me some suggestions to
getting my program run faster...please email me. I am currently using
Microsoft C ver 7.00 compiler and 386 machine. Thanx!


** Chris **

Technical Details

Message-ID: <1992Jul29.171814@iti.gov.sg>

Path: arc1-ca.pugleaf.net!sparky!uunet!dtix!darwin.sura.net!jvnc.net!nuscc!iti.gov.sg!seow

References: <1992Jul27.233615.5302@asi.com>

Show Full Headers

Complete Article Headers

Path: arc1-ca.pugleaf.net!sparky!uunet!dtix!darwin.sura.net!jvnc.net!nuscc!iti.gov.sg!seow
From: seow@iti.gov.sg (Seow Aik Siong)
Newsgroups: sci.image.processing
Subject: Image rotation algorithms
Message-ID: <1992Jul29.171814@iti.gov.sg>
Date: 29 Jul 92 09:18:14 GMT
References: <1992Jul27.233615.5302@asi.com>
Sender: news@iti.gov.sg (News Admin)
Reply-To: seow@iti.gov.sg
Organization: Information Technology Institute National Computer Board
Lines: 14
Originator: seow@hephaistos.iti.gov.sg

Reply to Parent Message