How to work with color images?

Posted by Juanjo Vega on May 25, 2011; 10:09am
URL: http://imagej.273.s1.nabble.com/How-to-work-with-color-images-tp3684447.html

Hello everyone,

I need to work with colour images in a plugin I'm developing, and as it is my first time and I'm pretty confused.

I had a look into the "Color Threshold" plugin and found this:

int c, r, g, b;

...

c=ip.getPixel(x,y);

r = ((c&0xff0000)>>16);//R
g = ((c&0x00ff00)>>8);//G
b = ( c&0x0000ff); //B

So, do I have to convert every pixel like that before working with them? Is there no API for RGB images? Maybe a method to split the image in three different gray scale images and to merge them after being processed, would be helpful.

Any help will he welcome, plugins, API reference, etc. :)

Sincerely,

Juanjo.

------------------------------------------------------------
Juanjo Vega ([hidden email])

Unidad de Biocomputación. Laboratorio B-13.
Centro Nacional de Biotecnología. CNB-CSIC.
C\ Darwin, 3. Campus de Cantoblanco.
Universidad Autónoma de Madrid.
28049, Madrid, Spain.

http://www.cnb.csic.es
http://www.biocomp.cnb.csic.es

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