Re: edge detecion on a color image

Posted by dscho on Jun 13, 2007; 1:24pm
URL: http://imagej.273.s1.nabble.com/edge-detecion-on-a-color-image-tp3699142p3699144.html

Hi Michael,

On Wed, 13 Jun 2007, Michael Schmid wrote:

> your image seems to be a grayscale image with a color lookup
> table, so you should use the original grayscale data.

Did I miss something? I thought that the grayscales were only the
grayified versions of the colour jpeg. And AFAICT colour jpegs are never
8-bit with a lookup table.

Ciao,
Dscho