コード例 #1
0
ファイル: RingLocator.cs プロジェクト: angelobreuer/Robot
        private RingSequence?CreateGroupKey(ImageTile tile)
        {
            var averagedColor = tile.Average();

            return(_sequences
                   .Select(x => (Item: x, Distance: RgbComparer.CompareByAmplitude(x.Color, averagedColor)))
                   .Where(x => x.Distance < 0.2)
                   .OrderBy(x => x.Distance)
                   .FirstOrDefault().Item);
        }
コード例 #2
0
ファイル: MotionDetector.cs プロジェクト: angelobreuer/Robot
        public ImmutableArray <ImageTile> DetectChanges(ImageGrid grid)
        {
            using var enumerator = grid.GetEnumerator();
            var index = 0;

            if (_lastFrame is null)
            {
                _lastFrame = GC.AllocateUninitializedArray <RgbColor>(grid.Tiles);

                while (enumerator.MoveNext())
                {
                    _lastFrame[index++] = enumerator.Current.Average();
                }

                return(ImmutableArray <ImageTile> .Empty);
            }

            if (_lastFrame.Length != grid.Tiles)
            {
                throw new InvalidOperationException("Last frame's tile count does not match the currents.");
            }

            var builder = ImmutableArray.CreateBuilder <ImageTile>();

            while (enumerator.MoveNext())
            {
                var previousColor = _lastFrame[index];
                var currentColor  = enumerator.Current.Average();

                _lastFrame[index++] = currentColor;

                if (RgbComparer.Compare(previousColor, currentColor) > 0.4)
                {
                    builder.Add(enumerator.Current);
                }
            }

            return(builder.ToImmutable());
        }