$worker

image-resize

v0.1.10

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

macOS: arm64 · x64
Linux: arm64 · armv7 · x64
Windows: arm64 · x64 · x86

agent-ready brief for v0.1.10

install + config + dependencies + readme + 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. paste it into an llm prompt or pipe it through curl from a worker.

install

$iii worker add image-resize@0.1.10

configuration

iii-config.yaml

- height: 200
  quality:
    jpeg: 85
    webp: 80
  strategy: scale-to-fit
  width: 200

dependencies

no dependencies for v0.1.10

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 — see LICENSE.

api reference (json)

agent-api-reference.json

{
  "functions": [
    {
      "description": "Resize an image via channel I/O",
      "metadata": {},
      "name": "image_resize::resize",
      "request_schema": {},
      "response_schema": {}
    }
  ],
  "triggers": []
}