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Percentage difference between images: Difference between revisions
Percentage difference between images (view source)
Revision as of 14:29, 18 February 2018
, 6 years agoAdded Julia language
(Added Kotlin) |
(Added Julia language) |
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Line 826:
console.log(result);
});</lang>
=={{header|Julia}}==
{{works with|Julia|0.6}}
<lang julia>using Images, FileIO
absdiff(a::RGB{T}, b::RGB{T}) where T = sum(abs(col(a) - col(b)) for col in (red, green, blue))
function pctdiff(A::Matrix{Color{T}}, B::Matrix{Color{T}}) where T
size(A) != size(B) && throw(ArgumentError("images must be same-size"))
s = zero(T)
for (a, b) in zip(A, B)
s += absdiff(a, b)
end
return 100s / 3prod(size(A))
end
img50 = load("data/lenna50.jpg") |> Matrix{RGB{Float64}};
img100 = load("data/lenna100.jpg") |> Matrix{RGB{Float64}};
d = pctdiff(img50, img100)
@printf("Percentage difference: %.4f%%\n", d)</lang>
{{out}}
<pre>Percentage difference: 1.6247%</pre>
=={{header|Kotlin}}==
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