Smart quality helpers

Content analysis used when enableSmartQuality: true.

Signature

interface ContentAnalysis {
  isPhoto: boolean
  isGraphic: boolean
  hasText: boolean
  complexity: 'low' | 'medium' | 'high'
  recommendedQuality: number
}

function analyzeImageContent(canvas: HTMLCanvasElement): Promise<ContentAnalysis>

function getSmartQuality(
  options: CompressionOptions,
  analysis: ContentAnalysis
): number

getSmartQuality returns options.quality when set; otherwise analysis.recommendedQuality.

Via compress

await compress(file, {
  enableSmartQuality: true,
  format: 'image/pixu',
})

Manual

import { analyzeImageContent, getSmartQuality, compress } from '@pantanal/pixu'

const analysis = await analyzeImageContent(canvas)
const quality = getSmartQuality({}, analysis)
await compress(file, { quality })

Related

• analyzeImage — richer recommendations
• Guide: Smart Quality