Posted by
Justin Walker-3 on
Oct 17, 2008; 12:16am
URL: http://imagej.273.s1.nabble.com/high-speed-video-with-varying-illumination-tp3694724p3694729.html
If you don't mind them being reduced to 2-bit images, a simple automatic
thresholding should take care of it.
However, you should really look into an 80 kHz light (I, too, use a 10,000
fps camera to track particles, and the 80kHz light makes a huge difference).
- Justin Walker
University of Maryland
-----Original Message-----
From: ImageJ Interest Group [mailto:
[hidden email]] On Behalf Of
Franklin Shaffer
Sent: October 16, 2008 6:21 PM
To:
[hidden email]
Subject: [IMAGEJ] high speed video with varying illumination
I'm taking high speed videos of particles at 10,000 frames per second, but
the light source I'm using for illumination is varying in brightness at 60
hz.
The result is that the brightness of each image is different, even when the
object being viewed is not changing.
Anyone have any suggestions for image processing steps to correct for the
varying illumination?
(I don't have the option of getting a different light source.)
Thank you,
Frank Shaffer
Research Engineer
USDOE National Energy Technology Laboratory
Computational Science Division