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nixpkgs/pkgs/tools/graphics/neural-style/default.nix

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Nix

{stdenv, fetchFromGitHub, torch, loadcaffe, fetchurl, bash}:
stdenv.mkDerivation rec {
name = "neural-style-${version}";
version = "0.0pre2016.08.15";
buildInputs = [torch loadcaffe];
src = fetchFromGitHub {
owner = "jcjohnson";
repo = "neural-style";
rev = "ec5ba3a690d3090428d3b92b0c5d686a311bf432";
sha256 = "14qzbs9f95izvd0vbbirhymdw9pq2nw0jvhrh7vnyzr99xllwp02";
};
models = [
(fetchurl {
url = "https://gist.githubusercontent.com/ksimonyan/3785162f95cd2d5fee77/raw/bb2b4fe0a9bb0669211cf3d0bc949dfdda173e9e/VGG_ILSVRC_19_layers_deploy.prototxt";
sha256 = "09cpz7pyvc8sypg2q5j2i8yqwj1sjdbnmd6skl293p9pv13dmjg7";
})
(fetchurl {
url = "https://bethgelab.org/media/uploads/deeptextures/vgg_normalised.caffemodel";
sha256 = "11qckdvlck7wwl3pan0nawgxm8l2ccddi272i5l8rs9qzm7b23rf";
})
(fetchurl {
url = "http://www.robots.ox.ac.uk/~vgg/software/very_deep/caffe/VGG_ILSVRC_19_layers.caffemodel";
sha256 = "0m399x7pl4lnhy435ycsyz8xpzapqmx9n1sz698y2vhcqhkwdd1i";
})
];
installPhase = ''
mkdir -p "$out"/{bin,lib/lua/neural-style/models,share/doc/neural-style,share/neural-style}
for file in $models; do
ln -s "$file" "$out/lib/lua/neural-style/models/$(basename "$file" | sed -e 's/[^-]*-//')"
done;
cp README* INSTALL* LICEN?E* "$out"/share/doc/neural-style/
cp neural_style.lua "$out"/lib/lua/neural-style
substituteAll "${./neural-style.sh}" "$out/bin/neural-style"
chmod a+x "$out/bin/neural-style"
cp "$out/bin/neural-style" .
cp "$out/lib/lua/neural-style/models/"* models/
echo "Testing..."
"$out/bin/neural-style" -style_image examples/inputs/golden_gate.jpg \
-content_image examples/inputs/golden_gate.jpg -output_image $PWD/test.png \
-gpu -1 -save_iter 1 -print_iter 1 -num_iterations 1 || true
cp -f "$out/lib/lua/neural-style/models/"* models/
test -e test.png || exit 1
'';
inherit torch bash loadcaffe;
meta = {
inherit version;
description = ''A torch implementation of the paper A Neural Algorithm of Artistic Style'';
license = stdenv.lib.licenses.mit ;
maintainers = [stdenv.lib.maintainers.raskin];
# Eats a lot of RAM
platforms = ["x86_64-linux"];
};
}