imageops

Documentation

Overview

Package imageops provides in-process image transforms.

Rotation runs at ingest, between JPEG decode and motion gate, so every downstream consumer (detector, ReID, face id, tracker, identity resolver, live view) sees a single canonical orientation. No cgo, no external dependencies — just the Go stdlib image package.

Index

• func DecodeJPEG(r io.Reader) (image.Image, error)
• func EncodeJPEG(img image.Image, quality int) ([]byte, error)
• func RotateCW(src image.Image, degrees int) (image.Image, error)

Functions

func DecodeJPEG

func DecodeJPEG(r io.Reader) (image.Image, error)

DecodeJPEG decodes JPEG bytes into an image.Image.

func EncodeJPEG

func EncodeJPEG(img image.Image, quality int) ([]byte, error)

EncodeJPEG encodes img as JPEG at the given quality (1–100).

func RotateCW

func RotateCW(src image.Image, degrees int) (image.Image, error)

RotateCW returns a new image rotated clockwise by degrees. degrees must be 0, 90, 180, or 270.