2d:null 2e:["$","title",null,{"children":"Chevalet Sur-Impressionniste | Loïc Haÿ | Observable"}] 33:[{"id":"bce6d6ed1752b2f8595818ffc5499143ccfdcd3839050f7ff0fb1da9d761b858452c68573da8314f4bc383bb4fa7f99ed02f24a60e7cc1f5e3a9bf09a10cdae6","href":"https://static.observableusercontent.com/files/bce6d6ed1752b2f8595818ffc5499143ccfdcd3839050f7ff0fb1da9d761b858452c68573da8314f4bc383bb4fa7f99ed02f24a60e7cc1f5e3a9bf09a10cdae6","name":"deepart_process.png","type":"image/png","lastModified":1609425645439.56,"size":788434}] 31:{"id":"8cd69c9647a2e189","slug":"chevalet-sur-impressionniste","title":"Chevalet Sur-Impressionniste","thumbnail":"e2a37bbd2551f97976f3798c94b30a79a4b0b59a389e795c1356b1a574b957f9","access_level":"public","create_time":"$D2020-12-30T02:11:01.436Z","update_time":"$D2020-12-31T17:12:38.293Z","view_time":null,"first_public_time":"$D2020-12-30T13:06:47.531Z","has_unpublished_edits":null,"fork":{"id":"906775a0a93df48a","slug":"quick-n-easy-style-transfer-with-cloudinary","title":"Quick-’n’-easy style transfer, with Cloudinary","owner":{"id":"3301827868803b5f","login":"eeeps","name":"Eric Portis"}},"stars":1,"starred":false,"owner":{"type":"team","id":"ced333935b11c278","login":"loichay","name":"Loïc Haÿ","avatar_url":"https://avatars-next.observableusercontent.com/4f62547993961ca82574a1a31c5b254f5091695d72f86549627a5c25f401fb3d","tier":"starter_2024"},"version":437,"publish_version":437,"role":null,"authored":false,"authors":[{"type":"individual","id":"45c0fe184f8ff07e","login":"loichay","name":"Loïc Haÿ","avatar_url":"https://avatars-next.observableusercontent.com/4f62547993961ca82574a1a31c5b254f5091695d72f86549627a5c25f401fb3d","tier":null}],"members":[{"type":"individual","id":"45c0fe184f8ff07e","login":"loichay","name":"Loïc Haÿ","avatar_url":"https://avatars-next.observableusercontent.com/4f62547993961ca82574a1a31c5b254f5091695d72f86549627a5c25f401fb3d","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":true,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"title":"Chevalet Sur-Impressionniste","cells":[{"id":358,"value":"md`# Chevalet Sur-Impressionniste`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":340,"value":"md`____________________________________________________________________________________________________________________`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":348,"value":"md`## 125 lieux de l'Estuaire de la Seine peints par des artistes impressionnistes`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":381,"value":"md`Pour préparer [un hackathon](https://hackathon-estuaire.fr) organisé en mars 2019, j’ai collecté et consolidé dans [une table Airtable](https://airtable.com/shrvwOfdBa20t1Z4D) des données relatives à 125 peintures impressionnistes représentant des lieux situés dans l’Estuaire de la Seine.`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":333,"value":"html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":385,"value":"md`Par défaut, les peintures sont localisées à la maille communale. Certaines sont géoréférencées aux coordonnées lat / long de l’emplacement où le peintre a probablement posé son chevalet. Ce travail de géolocalisation (inachevé dans la précision à fournir pour chaque peinture) visait à proposer une carte d’orientation vers chaque lieu peint entre la fin du XIXe et le début du XXe siècle pour, quand c’est possible, les reprendre en photo dans leur état actuel.`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":390,"value":"html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":398,"value":"md`En appliquant [la technique de la rephotographie](https://infolabs.io/content/la-petite-fabrique-rephotographique) à des oeuvres impressionnistes, l’objectif était de réaliser des paires avant/après pour comparer visuellement la représentation du passé (peinture) avec celle du présent (photo) dans un laps temporel de plus d’un siècle !`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":401,"value":"html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":353,"value":"md`____________________________________________________________________________________________________________________`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":367,"value":"md`## Premiers tests de transfert de style avec [deepart.io](https://deepart.io)`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":406,"value":"md`L’idée du chevalet sur-impressionniste est née en découvrant les algorithmes de transfert de style dont l’usage a été popularisé, entre autres, par [DeepArt](https://en.wikipedia.org/wiki/DeepArt). Ce service web permet de créer des images artistiques uniques en utilisant un algorithme pour transformer automatiquement une image (ici une rephotographie) à partir du transfert des éléments stylistiques d'une autre image (ici une peinture impressionniste). `","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":412,"value":"html`

\n ${await FileAttachment(\"deepart_process.png\").image()}\n

Voir le résultat de cet exemple sur deepart.io

\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":364,"value":"md`____________________________________________________________________________________________________________________`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":372,"value":"md`## Utilisation de l'extension [Neural Artwork Style Transfer](https://cloudinary.com/documentation/neural_artwork_style_transfer_addon) via l'API de [Cloudinary](https://cloudinary.com)`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":425,"value":"md`L'[API de DeepArt](http://turbo.deepart.io) n'étant plus disponible, même si les sources sont sur [Github](https://github.com/deepart-io/deepart-api), il est possible d'utiliser l'API de Cloudinary pour opérer, via une extension dédiée, un transfert de style entre 2 images.`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":433,"value":"md`**Disclaimer :** ce qui suit est un fork de [@eeeps/quick-n-easy-style-transfer-with-cloudinary](https://observablehq.com/@eeeps/quick-n-easy-style-transfer-with-cloudinary)`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":430,"value":"md`____________________________________________________________________________________________________________________`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":103,"value":"md`**Entrer l'url d'une peinture impressionniste représentant un lieu**`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":10,"value":"viewof styleURL = html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":90,"value":"md`**Entrer l'url d'une photographie actuelle du lieu représenté sur la peinture**`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":9,"value":"viewof contentURL = html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":4,"value":"html`\n

\n\n

\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":231,"value":"md`**Ajustement des paramètres**`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":325,"value":"md`*Force*`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":207,"value":"viewof strength = html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":320,"value":"md`*Largeur*`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":275,"value":"viewof outputWidth = html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":330,"value":"md`____________________________________________________________________________________________________________________`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":38,"value":"outputURL = `https://eric-cloudinary-res.cloudinary.com/image/fetch/w_${ outputWidth }/e_style_transfer${ strength < 100 ? ':' + strength : '' },l_fetch:${ window.btoa( styleURL ) }/${ contentURL }`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":67,"value":"css = html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W33","stdlib":"1","titling":"auto"}} 32:"$31:body"

Peinture

Photo

Résultat du transfert de style