Flux.jl/test/layers/conv.jl
2019-04-25 09:55:23 -07:00

64 lines
1.4 KiB
Julia

using Flux, Test
using Flux: maxpool, meanpool
@testset "Pooling" begin
x = randn(Float32, 10, 10, 3, 2)
mp = MaxPool((2, 2))
@test mp(x) == maxpool(x, PoolDims(x, 2))
mp = MeanPool((2, 2))
@test mp(x) == meanpool(x, PoolDims(x, 2))
end
@testset "CNN" begin
r = zeros(Float32, 28, 28, 1, 5)
m = Chain(
Conv((2, 2), 1=>16, relu),
MaxPool((2,2)),
Conv((2, 2), 16=>8, relu),
MaxPool((2,2)),
x -> reshape(x, :, size(x, 4)),
Dense(288, 10), softmax)
@test size(m(r)) == (10, 5)
end
@testset "asymmetric padding" begin
r = ones(Float32, 28, 28, 1, 1)
m = Conv((3, 3), 1=>1, relu; pad=(0,1,1,2))
m.weight.data[:] .= 1.0
m.bias.data[:] .= 0.0
y_hat = Flux.data(m(r))[:,:,1,1]
@test size(y_hat) == (27, 29)
@test y_hat[1, 1] 6.0
@test y_hat[2, 2] 9.0
@test y_hat[end, 1] 4.0
@test y_hat[1, end] 3.0
@test y_hat[1, end-1] 6.0
@test y_hat[end, end] 2.0
end
@testset "Depthwise Conv" begin
r = zeros(Float32, 28, 28, 3, 5)
m1 = DepthwiseConv((2, 2), 3=>5)
@test size(m1(r), 3) == 15
m2 = DepthwiseConv((2, 2), 3)
@test size(m2(r), 3) == 3
x = zeros(Float64, 28, 28, 3, 5)
m3 = DepthwiseConv((2, 2), 3 => 5)
@test size(m3(r), 3) == 15
m4 = DepthwiseConv((2, 2), 3)
@test size(m4(r), 3) == 3
end
@testset "ConvTranspose" begin
x = zeros(Float32, 28, 28, 1, 1)
y = Conv((3,3), 1 => 1)(x)
x_hat = ConvTranspose((3, 3), 1 => 1)(y)
@test size(x_hat) == size(x)
end