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Re: Read value from ASCII file for image properties

Posted by Herbie-2 on Feb 05, 2013; 8:06am
URL: http://imagej.273.s1.nabble.com/Read-value-from-ASCII-file-for-image-properties-tp5001661p5001667.html

Lars,

as always it may be helpful to read the docs, in this case especially
the list of macro functions

        http://rsb.info.nih.gov/ij/developer/macro/functions.html

and the associated example macros.

There you will find all calls necessary for your endeavor.

Look especially for the "File Functions" that allow you to obtain
information about (the presence of) files and that let you open text
files and read from them...

HTH

Herbie
______________________________
On 04.02.13 17:32, Lars wrote:

> Hi all,
> First, many thanks to the ImageJ development team. A great tool!
> I am a newbie at ImageJ and using Image1.46r.
> I have a little question about a macro: I like to read a value from an ASCII
> file an use it for the image properties Pixel "Width" and "Height" and
> "Voxel Depth".
>
> What I tried so far:
>
> // ~~~~~~Begin macro
> //1.) Choose Image tif File. (e.g:"1166-24.tif")
> //Note: Tiled Tiff. Open with ImageIO...
> run("Open ...", "Select Tiff File");
>
> ?
>
> //2.)Looking for the related ASCII file which should be in the same
> directory. The name is
> //equal, except the extension is ".tfw" instead of ".tif"
> (e.g:"1166-24.tfw")
> //----Begin file example----
> //0.250000 //-->  This value is wanted
> //0.000000
> //0.000000
> //-0.250000
> //2598125.125000
> //1202999.875000//
> //----End file example----
>
> ?
>
> //3.) If the file is being found, read the value from the *first* row (e.g.:
> 0,250000) and copy it into "Image Properties...":
> //pixel_width=copy-value-here (e.g.:0.25)
> //pixel_height=copy-value-here (e.g.:0.25)
> //voxel_depth=copy-value-here (e.g.:0.25)
> //("Properties...", "channels=1 slices=1 frames=1 unit=m
> pixel_width=copy-value-here pixel_height=copy-value-here
> voxel_depth=copy-value-here frame=[0 sec] origin=0,0");
>
> ?
>
> // ~~~~~~End macro
>
> Many thanks for any help
> Lars
>
>
>
> --
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>
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