// Watershed Demo Macro
//
// This demo shows a watersehed segmentation on a graylevel image with
// a gaussian blur to avoid the natural oversegmentation and with two
// output display.
//
// http://bigwww.epfl.ch/sage/soft/watershed
// 
// Daniel Sage
// Biomecial Imaging Group (BIG)
// Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland
//
// 22 March 2007
//

// Open an image
run("Cell Colony (31K)");
run("8-bit");

// Watershed segmentation by flooding from the level 0 to 170 
// preceeded by a gaussian blur at 1.0
// All outputs are generated as example.
run("Watershed ", "blurring='1.0'   watershed='0 1 0 170 0 1'   display='6 5 4 3 2 1 0' ");

// Description of the arguments of the blurring command
//
// argument 1: (mandatory)
//		Radius of the Gaussian blurring.
//		Decimal value authorized
//		0 or less than 0 means no blurring 

// Description of the arguments of the watershed command
//
// argument 1: (mandatory)
//		0 for dark objects on bright background, 1 otherwise
//
// argument 2: (mandatory)
//		0 a neighborhood of 4 pixels, 1 a neighborhood of 8 pixels
//
// argument 3: (mandatory) 
//		minimum level [0..255]		
//
// argument 4: (mandatory) 
//		maximum level [0..255]		
//
// argument 5: (mandatory)
//		1 to show the progression messages, 0 otherwise
//
// argument 6: (mandatory)
//		1 to create an animation, 0 otherwise. Not allowed for image stack.

// Description of the arguments of the display command
//
//
// argument 0..6: (optional) kind of display outputs 
//		0 for object/background binary image
//		1 for watershed lines
//		2 for red overlaid dams
//		3 for labelized basins
//		4 for colorized basins
//		5 for composite image
//		6 for showing input image of the watershed operation