funky.jl

### A Pluto.jl notebook ###
# v0.12.4

using Markdown
using InteractiveUtils

# ╔═╡ b7737d96-1488-11eb-0be7-2d3d96b5993d
begin
	import Pkg
	Pkg.activate(mktempdir())
	Pkg.add([
			"PlutoUI",
			"Images",
			"ImageMagick"
			])
	using PlutoUI
	using Images
end

# ╔═╡ d6358820-1488-11eb-18f3-212f6b3b16bd
i = Images.load(download("https://fonsp.com/img/doggoSmall.jpg?raw=true"))

# ╔═╡ 0ad23e32-1489-11eb-34dd-b5f9587487f8
sphere = (center = [4,0,0], radius=1)

# ╔═╡ 0be4fefa-148a-11eb-0a57-01dd9eb70aeb
floor(Int, 3.123)

# ╔═╡ 77a1dbe4-1489-11eb-2533-9749def8cfe5
function extend(img, x, y)
	xi = floor(Int, x)
	yi = floor(Int, y)
	
	w, h = size(img)
	img[clamp(xi, 1, w), clamp(yi, 1, h)]
end

# ╔═╡ aecf9ba0-148a-11eb-0a11-b57dc2ab33cb
CartesianIndex(1,2) + CartesianIndex(1,2)

# ╔═╡ 3676d1e6-148a-11eb-27e8-4d3b412af762
function distorted(distortion::Function, img)
	map(CartesianIndices(img)) do I
		new_I = I.I .+ distortion(I.I...)
		extend(img, new_I...)
	end
end

# ╔═╡ 5e50e4d6-148a-11eb-2753-69d4fa7eecf3
CartesianIndices(i)

# ╔═╡ 4b86b524-148a-11eb-3023-75973a6ec453
distorted(i) do x, y
	sin(x/10) * 50, sin(y / 10) * 0
end

# ╔═╡ Cell order:
# ╠═b7737d96-1488-11eb-0be7-2d3d96b5993d
# ╠═d6358820-1488-11eb-18f3-212f6b3b16bd
# ╠═0ad23e32-1489-11eb-34dd-b5f9587487f8
# ╠═0be4fefa-148a-11eb-0a57-01dd9eb70aeb
# ╠═77a1dbe4-1489-11eb-2533-9749def8cfe5
# ╠═aecf9ba0-148a-11eb-0a11-b57dc2ab33cb
# ╠═3676d1e6-148a-11eb-27e8-4d3b412af762
# ╠═5e50e4d6-148a-11eb-2753-69d4fa7eecf3
# ╠═4b86b524-148a-11eb-3023-75973a6ec453