fast_image_editor library

Native image editing for Flutter with region-based effects.

This library provides high-performance native C image editing operations via Dart FFI. All processing runs in native code for maximum performance.

Features

7 image filters: blur, sepia, saturation, brightness, contrast, sharpen, grayscale
Region-based effects (e.g., blur only top 30% of image)
High-quality bicubic image resizing (via flutter_bicubic_resize)
Sync and async (Isolate) variants for every operation
JPEG and PNG support with automatic format detection

Quick Start

import 'package:fast_image_editor/fast_image_editor.dart';

// Apply blur to entire image
final blurred = FastImageEditor.blur(bytes: imageBytes, radius: 15);

// Apply sepia only to top 30% and bottom 30%
final sepia = FastImageEditor.sepia(
  bytes: imageBytes,
  intensity: 0.8,
  region: EditRegion(top: 0.3, bottom: 0.3),
);

// Resize image with bicubic interpolation
final resized = FastImageEditor.resize(
  bytes: imageBytes,
  outputWidth: 800,
  outputHeight: 600,
);

Classes

EditRegion

Rectangular region of the image where an effect should be applied.

FastImageEditor

High-performance native image editor with region-based effects.

RadialRegion

Radial (circular) region of the image where an effect should be applied.

Enums

BicubicFilter

Available bicubic filter types

CropAnchor

Crop anchor positions