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image-resize

v0.1.2

III engine image resize worker (JPEG/PNG/WebP, EXIF orient, scale-to-fit / crop-to-fit)

imagejpegmediapngresizewebp

Install

bash
iii trigger compose::add worker=image-resize@0.1.2

Run in your project with the iii engine running. Exact versions are immutable and digest-pinned.

Agent-ready brief for v0.1.2
Install, config, dependencies, readme, skills and API reference, all in one place. Fetch as agent-context.md for an LLM to consume.

Full markdown

Open as agent-context.md
The same content rendered as discrete blocks below is exposed as a single markdown document at /workers/image-resize.md?version=0.1.2. Paste it into an LLM prompt or pipe it through curl from a worker.

Install

iii trigger compose::add worker=image-resize@0.1.2

Configuration

iii-config.yaml
- name: image-resize
  config:
    height: 200
    quality:
      jpeg: 85
      webp: 80
    strategy: scale-to-fit
    width: 200

Dependencies

No dependencies for v0.1.2

Readme

README.md

image-resize

A high-performance image resizing worker built for production workloads.

Installation

iii worker add image-resize

Configuration

Add the worker to your pipeline configuration:

- name: image-resize
  config:
    height: 200
    quality:
      jpeg: 85
      webp: 80
    strategy: scale-to-fit
    width: 200

Options

Option Type Default Description
width number 200 Target width in pixels
height number 200 Target height in pixels
strategy string scale-to-fit Resize strategy: scale-to-fit, crop, fill, contain
quality.jpeg number 85 JPEG output quality (1-100)
quality.webp number 80 WebP output quality (1-100)

Strategies

  • scale-to-fit — Resize to fit within the given dimensions, preserving aspect ratio
  • crop — Crop to exact dimensions from center
  • fill — Fill the area, stretching if necessary
  • contain — Contain within dimensions, adding padding if needed

Usage

import { pipeline } from '@iii/core';

const result = await pipeline.run('image-resize', {
  input: buffer,
  params: { width: 400, height: 300, strategy: 'crop' }
});

Performance

Benchmarks on a standard worker instance (2 vCPU, 512MB):

Format Avg Latency Throughput
JPEG 12ms ~83 ops/s
WebP 18ms ~55 ops/s
PNG 24ms ~41 ops/s

License

Apache 2-0

API reference (JSON)

No API surface registered for this version

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