Re: Contrast Enhancement

Posted by dscho on Jul 23, 2010; 10:16am
URL: http://imagej.273.s1.nabble.com/Contrast-Enhancement-tp3687471p3687472.html

Hi,

On Thu, 22 Jul 2010, Elizabeth Frink wrote:

> I am having some conflicts with the "Enhance Contrast" command in ImageJ
> and would like to know if anyone has insight into the two problems I am
> experiencing. I have written a simple macro to run thru a series of tiff
> images and enhance the contrast using normalization and then save each
> image as a jpeg. My two problems are as follows:
>
> 1) The macro saves each image successfully as a jpeg but when I go back
>    and open them, only a few of them actually had the contrast enhanced,
>    and some only had the contrast enhanced in a portion of the image
>    down to a vertical line thru the image.
>
> 2) If I open one of the images in LabVIEW (one that was successfully
>    enhanced in ImageJ), the image appears nearly inverted in greyscale,
>    but not completely because if I invert the image greyscale, it still
>    does not look correct.

> Has anyone seen anything like this or have any ideas how to resolve
> either of these problems?

Can you show your macro?

Ciao,
Johannes