JpegTransformer class

Transformations for JPEG images

• Transforms based on jpegtran code (lossless if properly aligned)
• Recompression

Implemented via FFI to libjpeg-turbo's jpegtran API

Users need to call dispose to free memory

Constructors

JpegTransformer(Uint8List jpegBytes)

Properties

hashCode → int

The hash code for this object.

no setter, inherited

jpegBytes ↔ Uint8List

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

dispose() → void

getInfo() → JpegInfo

Get basic information from the JPEG header

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

recompress({int quality = 80, double scale = 1, bool preserveEXIF = true}) → Uint8List

Lossy recompression and optional downscaling Scale should be 1, 0.5, 0.25 or 0.125

recompressTo(EventSink<List<int>> writer, {int quality = 80, double scale = 1, bool preserveEXIF = true}) → void

Lossy recompression and optional downscaling Scale should be 1, 0.5, 0.25 or 0.125

toString() → String

A string representation of this object.

inherited

transform(JpegTransformation transformation) → Uint8List

Perform a transformation

Operators

operator ==(Object other) → bool

The equality operator.

inherited