TensorFlow_(Python_API)_implementation_of_Neural_S

# neural-style-tf This is a TensorFlow implementation of several techniques described in the papers: * [Image Style Transfer Using Convolutional Neural Networks](http://www.cv-foundation.org/openaccess/content_cvpr_2016/papers/Gatys_Image_Style_Transfer_CVPR_2016_paper.pdf) by Leon A. Gatys, Alexander S. Ecker, Matthias Bethge * [Artistic style transfer for videos](https://arxiv.org/abs/1604.08610) by Manuel Ruder, Alexey Dosovitskiy, Thomas Brox * [Preserving Color in Neural Artistic Style Transfer](https://arxiv.org/abs/1606.05897) by Leon A. Gatys, Matthias Bethge, Aaron Hertzmann, Eli Shechtman Additionally, techniques are presented for semantic segmentation and multiple style transfer. The Neural Style algorithm synthesizes a [pastiche](https://en.wikipedia.org/wiki/Pastiche) by separating and combining the content of one image with the style of another image using convolutional neural networks (CNN). Below is an example of transferring the artistic style of [The Starry Night](https://en.wikipedia.org/wiki/The_Starry_Night) onto a photograph of an African lion: <p align="center"> <img src="examples/lions/42_output.png" width="512"/> <img src="examples/lions/content_style.png" width="290"/> </p> Transferring the style of various artworks to the same content image produces qualitatively convincing results: <p align="center"> <img src="examples/lions/32_output.png" width="192"> <img src="examples/lions/styles/matisse_crop.jpg" width="192"/> <img src="examples/lions/33_output.png" width="192"/> <img src="examples/lions/styles/water_lilies_crop.jpg" width="192"/> <img src="examples/lions/wave_output.png" width="192"/> <img src="examples/lions/styles/wave_crop.jpg" width="192"/> <img src="examples/lions/basquiat_output.png" width="192"/> <img src="examples/lions/styles/basquiat_crop.jpg" width="192"/> <img src="examples/lions/calliefink_output.png" width="192"/> <img src="examples/lions/styles/calliefink_crop.jpg" width="192"/> <img src="examples/lions/giger_output.png" width="192"/> <img src="examples/lions/styles/giger_crop.jpg" width="192"/> </p> Here we reproduce Figure 3 from the first paper, which renders a photograph of the Neckarfront in Tübingen, Germany in the style of 5 different iconic paintings [The Shipwreck of the Minotaur](http://www.artble.com/artists/joseph_mallord_william_turner/paintings/the_shipwreck_of_the_minotaur), [The Starry Night](https://www.wikiart.org/en/vincent-van-gogh/the-starry-night-1889), [Composition VII](https://www.wikiart.org/en/wassily-kandinsky/composition-vii-1913), [The Scream](https://www.wikiart.org/en/edvard-munch/the-scream-1893), [Seated Nude](http://www.pablopicasso.org/seated-nude.jsp): <p align="center"> <img src="examples/gatys_figure/tubingen.png" height="192px"> <img src="examples/gatys_figure/tubingen_shipwreck.png" height="192px"> <img src="examples/initialization/init_style.png" height="192px"> <img src="examples/gatys_figure/tubingen_picasso.png" height="192px"> <img src="examples/gatys_figure/tubingen_scream.png" height="192px"> <img src="examples/gatys_figure/tubingen_kandinsky.png" height="192px"> </p> ### Content / Style Tradeoff The relative weight of the style and content can be controlled. Here we render with an increasing style weight applied to [Red Canna](http://www.georgiaokeeffe.net/red-canna.jsp): <p align="center"> <img src="examples/style_content_tradeoff/okeffe.jpg" height="160px"> <img src="examples/style_content_tradeoff/okeffe_10.png" width="160px"> <img src="examples/style_content_tradeoff/okeffe_100.png" width="160px"> <img src="examples/style_content_tradeoff/okeffe_10000.png" width="160px"> <img src="examples/style_content_tradeoff/output_1000000.png" width="160px"> </p> ### Multiple Style Images More than one style image can be used to blend multiple artistic styles. <p align="center"> <img src="examples/multiple_styles/tubingen_starry_scream.png" height="192px"> <img src="examples/multiple_styles/tubingen_scream_kandinsky.png" height="192px"> <img src="examples/multiple_styles/tubingen_starry_seated.png" height="192px"> <img src="examples/multiple_styles/tubingen_seated_kandinsky.png.png" height="192px"> <img src="examples/multiple_styles/tubingen_afremov_grey.png" height="192px"> <img src="examples/multiple_styles/tubingen_basquiat_nielly.png" height="192px"> </p> *Top row (left to right)*: [The Starry Night](https://www.wikiart.org/en/vincent-van-gogh/the-starry-night-1889) + [The Scream](https://www.wikiart.org/en/edvard-munch/the-scream-1893), [The Scream](https://www.wikiart.org/en/edvard-munch/the-scream-1893) + [Composition VII](https://www.wikiart.org/en/wassily-kandinsky/composition-vii-1913), [Seated Nude](http://www.pablopicasso.org/seated-nude.jsp) + [Composition VII](https://www.wikiart.org/en/wassily-kandinsky/composition-vii-1913) *Bottom row (left to right)*: [Seated Nude](http://www.pablopicasso.org/seated-nude.jsp) + [The Starry Night](https://www.wikiart.org/en/vincent-van-gogh/the-starry-night-1889), [Oversoul](http://alexgrey.com/art/paintings/soul/oversoul/) + [Freshness of Cold](https://afremov.com/FRESHNESS-OF-COLD-PALETTE-KNIFE-Oil-Painting-On-Canvas-By-Leonid-Afremov-Size-30-x40.html), [David Bowie](http://www.francoise-nielly.com/index.php/galerie/index/56) + [Skull](https://www.wikiart.org/en/jean-michel-basquiat/head) ### Style Interpolation When using multiple style images, the degree of blending between the images can be controlled. <p align="center"> <img src="image_input/taj_mahal.jpg" height="178px"> <img src="examples/style_interpolation/taj_mahal_scream_2_starry_8.png" height="178px"> <img src="examples/style_interpolation/taj_mahal_scream_8_starry_2.png" height="178px"> <img src="examples/style_interpolation/taj_mahal_afremov_grey_8_2.png" height="178px"> <img src="examples/style_interpolation/taj_mahal_afremov_grey_5_5.png" height="178px"> <img src="examples/style_interpolation/taj_mahal_afremov_grey_2_8.png" height="178px"> </p> *Top row (left to right)*: content image, .2 [The Starry Night](https://www.wikiart.org/en/vincent-van-gogh/the-starry-night-1889) + .8 [The Scream](https://www.wikiart.org/en/edvard-munch/the-scream-1893), .8 [The Starry Night](https://www.wikiart.org/en/vincent-van-gogh/the-starry-night-1889) + .2 [The Scream](https://www.wikiart.org/en/edvard-munch/the-scream-1893) *Bottom row (left to right)*: .2 [Oversoul](http://alexgrey.com/art/paintings/soul/oversoul/) + .8 [Freshness of Cold](https://afremov.com/FRESHNESS-OF-COLD-PALETTE-KNIFE-Oil-Painting-On-Canvas-By-Leonid-Afremov-Size-30-x40.html), .5 [Oversoul](http://alexgrey.com/art/paintings/soul/oversoul/) + .5 [Freshness of Cold](https://afremov.com/FRESHNESS-OF-COLD-PALETTE-KNIFE-Oil-Painting-On-Canvas-By-Leonid-Afremov-Size-30-x40.html), .8 [Oversoul](http://alexgrey.com/art/paintings/soul/oversoul/) + .2 [Freshness of Cold](https://afremov.com/FRESHNESS-OF-COLD-PALETTE-KNIFE-Oil-Painting-On-Canvas-By-Leonid-Afremov-Size-30-x40.html) ### Transfer style but not color The color scheme of the original image can be preserved by including the flag `--original_colors`. Colors are transferred using either the [YUV](https://en.wikipedia.org/wiki/YUV), [YCrCb](https://en.wikipedia.org/wiki/YCbCr), [CIE L\*a\*b\*](https://en.wikipedia.org/wiki/Lab_color_space), or [CIE L\*u\*v\*](https://en.wikipedia.org/wiki/CIELUV) color spaces. Here we reproduce Figure 1 and Figure 2 in the third paper using luminance-only transfer: <p align="center"> <img src="examples/original_colors/new_york.png" height="165px"> <img src="examples/original_colors/stylized.png" height="165px"> <img src="examples/original_colors/stylized_original_colors.png" height="165px"> <img src="examples/original_colors/garden.png" height="165px"> <img src="examples/original_colors/garden_starry.png" height="165px"> <img src="examples/original_colors/garden_starry_yuv.png" height="165px"> </p> *Left to right*: content image, stylized image, stylized image with the or