Fixing very minor typo in the ImageTransformations.imresize function documentation.

[MendeBadra]

ImageTransformations.jl/src/resizing.jl

Lines 32 to 93 in 7557c6c

	"""
	imresize(img, sz; [method]) -> imgr
	imresize(img, inds; [method]) -> imgr
	imresize(img; ratio, [method]) -> imgr
	upsample/downsample the image `img` to a given size `sz` or axes `inds` using interpolations. If
	`ratio` is provided, the output size is then `ceil(Int, size(img).*ratio)`.
	!!! tip
	This interpolates the values at sub-pixel locations. If you are shrinking the image, you risk
	aliasing unless you low-pass filter `img` first.
	# Arguments
	- `img`: the input image array
	- `sz`: the size of output array
	- `inds`: the axes of output array
	If `inds` is passed, the output array `imgr` will be `OffsetArray`.
	# Parameters
	!!! info
	To construct `method`, you may need to load `Interpolations` package first.
	- `ratio`: the upsample/downsample ratio used.
	The output size is `ceil(Int, size(img).*ratio)`. If `ratio` is larger than `1`, it is
	an upsample operation. Otherwise it is a downsample operation. `ratio` can also be a tuple,
	in which case `ratio[i]` specifies the resize ratio at dimension `i`.
	- `method::InterpolationType`:
	specify the interpolation method used for reconstruction. conveniently, `methold` can
	also be a `Degree` type, in which case a `BSpline` object will be created.
	For example, `method = Linear()` is equivalent to `method = BSpline(Linear())`.
	# Examples
	```julia
	using ImageTransformations, TestImages, Interpolations
	img = testimage("lighthouse") # 512*768
	# pass integers as size
	imresize(img, 256, 384) # 256*384
	imresize(img, (256, 384)) # 256*384
	imresize(img, 256) # 256*768
	# pass indices as axes
	imresize(img, 1:256, 1:384) # 256*384
	imresize(img, (1:256, 1:384)) # 256*384
	imresize(img, (1:256, )) # 256*768
	# pass resize ratio
	imresize(img, ratio = 0.5) #256*384
	imresize(img, ratio = (2, 1)) # 1024*768
	# use different interpolation method
	imresize(img, (256, 384), method=Linear()) # 256*384 bilinear interpolation
	imresize(img, (256, 384), method=Lanczos4OpenCV()) # 256*384 OpenCV-compatible Lanczos 4 interpolation
	```
	For downsample with `ratio=0.5`, [`restrict`](@ref) is a much faster two-fold implementation that
	you can use.
	"""

In lines 37-38 there is a typo, namely:

line 38: ratio is provided, the output size is then ceil(Int, size(img).*ratio)

But running this returns error because obviously size(img) returns a tuple. To fix this I suggest:

sz = ceil.(Int, size(img).*ratio)

to broadcast the ceil function.