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ragflow/internal/deepdoc/parser/pdf/image_utils.go

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package parser
import (
"bytes"
"image"
"image/jpeg"
"image/png"
)
// ── image encoding helpers ─────────────────────────────────────────────
func encodePNG(img image.Image) ([]byte, error) {
var buf bytes.Buffer
if err := png.Encode(&buf, img); err != nil {
return nil, err
}
return buf.Bytes(), nil
}
func encodeJPEG(img image.Image) ([]byte, error) {
var buf bytes.Buffer
if err := jpeg.Encode(&buf, img, &jpeg.Options{Quality: 90}); err != nil {
return nil, err
}
return buf.Bytes(), nil
}