2e:null 2f:["$","title",null,{"children":"Inverted Luminosity | Fabian Iwand | Observable"}] 34:[] 32:{"id":"c704620b9f688381","slug":"inverted-luminosity","title":"Inverted Luminosity","thumbnail":"95e35ab80788b16275c63edb0a80496c7c6d4bca847ac0353f16ba2a42e2e5be","access_level":"public","create_time":"$D2020-11-09T17:54:29.251Z","update_time":"$D2025-03-04T21:49:16.667Z","view_time":null,"first_public_time":"$D2020-11-09T18:53:35.156Z","has_unpublished_edits":null,"fork":false,"stars":16,"starred":false,"owner":{"type":"team","id":"898d35f8860c7f03","login":"mootari","name":"Fabian Iwand","avatar_url":"https://avatars-next.observableusercontent.com/0d7defa821f38094c03bad23b9b360a5364e6e97e21fc238c39ddc48db7994ad","tier":"starter_2024"},"version":322,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"07362516b5994994","login":"mootari","name":"Fabian Iwand","avatar_url":"https://avatars-next.observableusercontent.com/0d7defa821f38094c03bad23b9b360a5364e6e97e21fc238c39ddc48db7994ad","tier":null}],"members":[{"type":"individual","id":"07362516b5994994","login":"mootari","name":"Fabian Iwand","avatar_url":"https://avatars-next.observableusercontent.com/0d7defa821f38094c03bad23b9b360a5364e6e97e21fc238c39ddc48db7994ad","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":true,"trashed":false,"lapsed":null,"subscribed":null,"forks":16,"collection":{"id":"e3842c7642c32750","slug":"tools","title":"Tools & Techniques","owner":{"id":"898d35f8860c7f03","login":"mootari","name":"Fabian Iwand"}},"type":"notebook","body":{"title":"Inverted Luminosity","cells":[{"id":302,"value":"# Inverted Luminosity","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":0,"value":"SVG filter that inverts brightness while preserving hue.\n\nBased on [Invert RGB image without changing colors](https://forum.image.sc/t/invert-rgb-image-without-changing-colors/33571).","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":197,"value":"---\n## Filtered Image\n\n- **Top row (left to right):** original image, inverted luminosity\n- **Bottom row (left to right):** inverted color, inverted luminosity + inverted color\n\nImages are provided from [Lorem Picsum](https://picsum.photos/).","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","output":"","database":"$undefined"},{"id":90,"value":"viewof next = htl.html`