noun
- A line or curve connecting points of equal illumination or brightness on a surface or in an image.
Usage: technical; astronomy; image processing
Examples
- Astronomers use isophotes to map the brightness distribution in distant galaxies.
- The isophote map revealed the structure of the nebula more clearly than a simple photograph.
- In image processing, isophotes help identify edges and boundaries within a digital image.
- The innermost isophote showed the brightest region of the stellar halo.
- By analyzing multiple isophotes, researchers determined the galaxy's luminosity profile.