getting length of an image for a macro

[Jose Guzman-2]

Hi

I would like programmatically obtain the length (in seconds) of an image
obtained with an SP5 microscope (Leica Microsystems).

Currently, I can see the length in Image->Properties as

 >>> DimensionDescription|Length 1 = 4.000000e+000

I wondered whether there's something like getDimensions(); to obtain
that value and use it in a macro.

Thanks in advance

Jose

--
Jose Guzman
http://www.ist.ac.at/~jguzman/

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

[Michael Schmid]

Hi Jose,

you can get the values of 'key = value' and 'key: value' lines in the ImageInfo with the getInfo('key') macro command (a space is needed before the "=" sign, but no space before the colon).
In your case, you probably want to use it as a number, not as a String (text), so you have to use parseFloat to convert it into a number:

parseFloat(getInfo("DimensionDescription|Length 1"));

Michael
________________________________________________________________
On Jan 28, 2014, at 11:11, Jose Guzman wrote:

> Hi
>
> I would like programmatically obtain the length (in seconds) of an image obtained with an SP5 microscope (Leica Microsystems).
>
> Currently, I can see the length in Image->Properties as
>
> >>> DimensionDescription|Length 1 = 4.000000e+000
>
> I wondered whether there's something like getDimensions(); to obtain that value and use it in a macro.
>
> Thanks in advance
>
> Jose
>
> --
> Jose Guzman
> http://www.ist.ac.at/~jguzman/
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html

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