imhmax

J = imhmax(I::GMTimage{<:UInt8, 2}, H; conn=4)::GMTimage

keywords: GMT, Julia, image morphology, H-maxima transform

Suppress regional maxima in image using H-maxima transform.

The H-maxima transform decreases the height of all regional maxima by an amount up to H. As a result, the transform fully suppresses regional maxima whose height is less than H. Regional maxima are connected pixels with the same intensity value, t, that are surrounded by pixels with an intensity value less than t.

Args

• I::GMTimage{<:UInt8, 2}: Input image.

• H: Bump's maximum regional height.

Kwargs

• conn::Int=4: Connectivity value used to identify the regional maxima in I (4 or 8). Default is 4.

Returns

A new GMTimage of the same type as I.

Example

The result will look like the outline of the object.

using GMT

a = fill(UInt8(10),10,10);
a[2:4,2:4] .= UInt8(13);
a[6:8,6:8] .= UInt8(18);
I = imhmax(mat2img(a), 4);

See Also

imhdome, imhmin