Posted by
Joachim Wesner on
Jun 04, 2008; 6:47am
URL: http://imagej.273.s1.nabble.com/gray-scale-value-tp3696027p3696028.html
Hi Sasmita!
this is a bit confusing! Dou you want to read pixel values from a regular
binary image file (.TIF or whatever) or from a *TEXT* file that specifies
pixel by pixel?
In can of an image loaded into ImageJ, you can use
>getPixel(x, y)
>Returns the value of the pixel at (x,y). Note that pixels in RGB images
contain red, green and blue components that need to be
>extracted using shifting and masking. See the Color Picker Tool macro for
an example that shows how to do this.
in a loop inside a macro. Please lookup the documentation
http://rsb.info.nih.gov/ij/docs/ImageJMacroLanguage.pdfCheers
Joachim
Leica Microsystems CMS GmbH | GmbH mit Sitz in Wetzlar | Amtsgericht
Wetzlar HRB 2432
Geschäftsführer: Dr. Stefan Traeger | Dr. Wolf-Otto Reuter | Dr. David Roy
Martyr | Colin Davis
ImageJ Interest Group <
[hidden email]> schrieb am 03.06.2008 23:07:55:
> Hello Friends,
> I'm writing a macro in which I want to read my program the pixel
> level gray scale values.I run the program to open the text file.But
> I can't figure out how to read each single pixel
>
> value. Basically I'm asking if there is a command in ImageJ that
> reads those value automatically.
>
> Could anyone please help?
>
> Thanks,
> Sasmita
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