Frequently in scientific imaging you need to draw a red, grn and/or blu image on top of a grayscale image to emulate a 4th "color" channel.
Building an RGB pic from raw pixel values is easy but what is the correct math to "add" a grayscale channel to an RGB image? Simply adding the RGB components of the grayscale image (which are all equal by definition) to the exisiting R, G and B values of the color image does not give nice results. Anyone have any ideas? Thx, Peter. -- ------------------------------------------------------------------------------- Peter K. Stys, MD Professor of Medicine(Neurology), Senior Scientist Ottawa Health Research Institute, Div. of Neuroscience Ottawa Hospital / University of Ottawa Ontario, CANADA tel: (613)761-5444 fax: (613)761-5330 http://www.ohri.ca/profiles/stys.asp ------------------------------------------------------------------------------- _______________________________________________ Unsubscribe or switch delivery mode: <http://www.realsoftware.com/support/listmanager/> Search the archives of this list here: <http://support.realsoftware.com/listarchives/lists.html>
