Re: Function to Image One Area of Video Over Time

Posted by Rasband, Wayne (NIH/NIMH) [E] on May 13, 2015; 8:23pm
URL: http://imagej.273.s1.nabble.com/Function-to-Image-One-Area-of-Video-Over-Time-tp5012835p5012837.html

> On May 13, 2015, at 3:48 PM, dhdinh07 <[hidden email]> wrote:
>
> Hello,
>
> I am new to ImageJ and was referred to this by my professor, who doesn't
> remember the name of the function that I need to use.
>
> I have a 1474-frame long video and I want to drag a horizontal line in the
> x-direction, say 100 px long. I am looking for a function that can create an
> image that is 100 px wide by 1474 px long (1 pixel for every frame). In
> other words, the function shows how one area changes over time as an image.
>
> Can ImageJ do this, and if so what is the function called?

You're looking for the Image>Stacks>Reslice command. Open the video as a stack. Use the straight line tool to create a 100 pixel wide horizontal line selection. (Hold the sift key down to constrain the selection so that it horizontal.) Press “/“ (Image>Stacks>Reslice) and press “OK” in the dialog, using the default settings. The Reslice command will then create a 100x1474 image that shows how the video changes over time.

-wayne

> --
> View this message in context: http://imagej.1557.x6.nabble.com/Function-to-Image-One-Area-of-Video-Over-Time-tp5012835.html
> Sent from the ImageJ mailing list archive at Nabble.com.



--
ImageJ mailing list: http://imagej.nih.gov/ij/list.html