Find Brightness from the image provider

image_process_utils.dart

import 'package:flutter/material.dart';

// Add this to pubspec.yaml of your flutter project
// palette_generator: ^0.3.2

// get packages to download the package  

import 'package:palette_generator/palette_generator.dart';

/// This method will find & return the most dominant color from the image
/// 
/// i.e. the most effective color or an average color from the provided image
Future<Color?> getDominantColor(ImageProvider imageProvider) async {
  final _pallet = await PaletteGenerator.fromImageProvider(imageProvider);
  final _dominantColor = _pallet.dominantColor?.color;
  return _dominantColor;
}

/// Get Brightness from color
Brightness brightnessFromColor(Color color) {
  final luminance = color.computeLuminance();
  return luminance > 0.5 ? Brightness.light : Brightness.dark;
}