Color and looks

Video noise reduction effect

Clean the grain a small sensor adds in low light. Works across neighbouring frames as well as inside each one.

Shown on A dark street at night, with sensor noise, punched in

Before · the same request without it

After · Clean the grain a small sensor adds in the dark. Punched in so the grain is actually visible at this size, because at full width it is too fine to see.

The entry

Add it to a clip's effects list. Entries run in the order you write them.

{
  "type": "denoise"
}

Settings

Name	Accepts	Default	What it does
amount	0 to 1or keyframes	0.55	0 to 1. 0.3 to 0.6 cleans a dark phone clip, higher starts to smear fine detail.

Run it

The whole request behind the render above. Paste it as it is, or swap the file for your own.

TypeScript SDK cURL

import { createClient, outputUrl } from "@rendobar/sdk";

const rb = createClient({ apiKey: process.env.RENDOBAR_API_KEY });

const job = await rb.jobs.run({
  type: "compose",
  params: {
    schemaVersion: 1,
    output: {
      format: "mp4",
      resolution: {
        width: 960,
        height: 540
      }
    },
    timeline: {
      tracks: [
        {
          clips: [
            {
              asset: {
                type: "video",
                src: "https://cdn.rendobar.com/compose/showcase/media/lowlight-noisy.mp4"
              },
              start: 0,
              crop: {
                top: "44%",
                bottom: "6%",
                left: "22%",
                right: "30%"
              },
              effects: [
                {
                  type: "denoise"
                }
              ]
            }
          ]
        }
      ]
    }
  },
});

console.log(outputUrl(job));

Install with npm i @rendobar/sdk. jobs.run() submits and waits, so it returns the finished job in one call.

curl https://api.rendobar.com/jobs \
  -H "Authorization: Bearer $RENDOBAR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"type":"compose","params":{"schemaVersion":1,"output":{"format":"mp4","resolution":{"width":960,"height":540}},"timeline":{"tracks":[{"clips":[{"asset":{"type":"video","src":"https://cdn.rendobar.com/compose/showcase/media/lowlight-noisy.mp4"},"start":0,"crop":{"top":"44%","bottom":"6%","left":"22%","right":"30%"},"effects":[{"type":"denoise"}]}]}]}}}'

Returns immediately with a job id. Poll GET /jobs/{id} or register a webhook rather than blocking on the request.

Questions

What does the denoise effect do in compose?

Clean the grain a small sensor adds in low light. Works across neighbouring frames as well as inside each one. Clean the grain a small sensor adds in the dark. Punched in so the grain is actually visible at this size, because at full width it is too fine to see.

How do I add denoise to a video with an API?

Send a compose job to the Rendobar API with this entry in the timeline: {"type":"denoise"}. Add it to a clip's effects list. Entries run in the order you write them. The request on this page is complete and renders as shown.

What are the default settings for denoise?

Every setting has a default, so the type on its own is enough: amount 0.55. Set only the ones you want to change.

Footage and sound

Straßenbahnhalt Pariser Tor - Ankunft Variobahn in der Nacht.webm, by ManuelB701. CC0.

Color A warm cinematic grade: the light pulled towards gold, contrast and color lifted a little, skin left believable. LUT A film grade from a LUT file: shadows toward teal, skin and highlights toward orange, the look a colourist hands over as a .cube. Looks The whole archive look in one word: sepia, grain, dust, scratches, projector flicker and a vignette together. Blur Knock the footage back so a title over it stays readable. Sharpen Crisp up footage that is slightly out of focus. Look at the rocks and the life jackets. Glow Make the lights bloom on a city at night.

See all 77 in the effects reference →