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OpenSlide.jl
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OpenSlide.jl
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module OpenSlide
#include("../deps/deps.jl")
using Libdl
los = Libdl.dlopen("libopenslide")
export
OpenSlideImage,
AssociatedImage,
open_slide,
level_dims,
read_slide,
properties,
associated_images,
read_associated
struct openslide_t end
const OSt = Ptr{openslide_t}
struct OpenSlideImage
file::String
levels::Int
leveldims
osptr::Ptr{openslide_t}
OpenSlideImage(file,levels,dims,osptr) = new(file,int(levels),dims,osptr)
end
# TODO finalizer
struct AssociatedImage
name::String
dims::Array{Int,1}
primary::OpenSlideImage
end
################################################################################
include("libopenslide.jl")
################################################################################
function open_slide(file::String)
osptr = openslide_open(file)
(osptr == C_NULL) && error("Unrecognized slide file: ", file)
levels = get_level_count(osptr)
dims = Array{Int,1}[]
for level in 1:levels
push!(dims, get_level_dimensions(osptr,level-1))
end
return OpenSlideImage(file,levels,dims,osptr)
end
function level_dims(img::OpenSlideImage, level::Int)
get_level_dimensions(img.osptr, level)
end
function read_slide(img::OpenSlideImage; level = -1, origin = [0,0], extent = None)
if (level < 0)
level = 1
end
if (extent == None)
extent = img.leveldims[level]
end
read_region(img.osptr, origin..., level, extent...)
end
function properties(img::OpenSlideImage)
rv = Dict{String,String}()
for name in get_property_names(img.osptr)
rv[name] = get_property_value(img.osptr,name)
end
return rv
end
function associated_images(img::OpenSlideImage)
rv = AssociatedImage[]
for name in associated_names(s)
dims = associated_dimensions(name)
push!(rv, AssociatedImage(name, dims))
end
end
function read_associated(img::AssociatedImage)
read_associated_image(img.primary.osptr, img.name, img.dims)
end
end # module