canny

Perform canny filtering on an image to expose edges.

Slice!(Contiguous, [2], V*) canny(Slice!(kind, [2], T*) slice, T lowThresh, T upThresh, EdgeKernel edgeKernelType, Slice!(Contiguous, [2], V*) prealloc, TaskPool pool)
Slice!(Contiguous, [2], V*)
canny
(
V
T
SliceKind kind
)
(
Slice!(kind, [2], T*) slice
,
T lowThresh
,
T upThresh
,
EdgeKernel edgeKernelType = EdgeKernel.SOBEL
,
Slice!(Contiguous, [2], V*) prealloc = emptySlice!([2], V)
,
TaskPool pool = taskPool
)
Slice!(Contiguous, [2], V*) canny(Slice!(kind, [2], T*) slice, T thresh, EdgeKernel edgeKernelType, Slice!(Contiguous, [2], V*) prealloc)

Parameters

slice Slice!(kind, [2], T*): Input image slice.
lowThresh T: lower threshold value after non-maxima suppression.
upThresh T: upper threshold value after non-maxima suppression.
edgeKernelType EdgeKernel: Type of edge kernel used to calculate image gradients.
prealloc Slice!(Contiguous, [2], V*): Optional pre-allocated buffer.
pool TaskPool: TaskPool instance used parallelise the algorithm.