new_imextract

The new_imextract function is a non-class version of the CImExtract:new method which creates and returns a new CImExtract object. You must call new before using any class methods or properties.

Syntax

C = new_imextract()

Creates a default CImExtract object with properties initialized to default values.

C = new_imextract( Params )

Creates a CImExtract object with default properties updated to values in the ImExtractParams Table, Params.

C = new_imextract( CImExtract_old )

This is a copy constructor. It creates a new CImExtract object initialized to the members of theCImExtract_old argument.

Example

The following script creates a new CImExtract object, attaches an image window and an image, then extracts sources from that image. An ImExtractParams table is used to set several specific properties. Note that each table entries must include a comma.

M = new_imextract()	-- create a new CImExtract

Params =	-- ImExtractParams properties to change
{
bProcFilter = true,
bFilterUseSepMin = true,
nFilterSepMin = 10,
bFilterUseAreaMax = true,
nFilterAreaMax = 100,
nBgMethod = 1,
nDetectTreshold = 45,	-- threshold value = 45
nDetectTest = 0,	-- use pixels greater than or equal to threshold
}
M:SetParams(Params)

V = attachlist_imageview()	-- connect to an image window
Assert( V, "No image window")	-- exit if no image window
-- grab an image from the window, V
--DO NOT declare I as "local" inside the block
if V:Count() > 1 then
I = CImage:AttachFromList( V )	-- pick the image from the CImageView V
Assert( I, "No Images available")	-- exit if no image
else
I = V:GetImage()	-- pick the only image in the window
end

bSuccess = M:Extract(I)	-- run the image extraction procedure

Syntax

Example

Related Topics