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/*
* GNU AFFERO GENERAL PUBLIC LICENSE
* Version 3, 19 November 2007
* Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
* Everyone is permitted to copy and distribute verbatim copies
* of this license document, but changing it is not allowed.
*/
using System;
using System.Collections;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Emgu.CV;
using Emgu.CV.CvEnum;
using Emgu.CV.Structure;
using Emgu.CV.Util;
using UVtools.Core.Extensions;
namespace UVtools.Core
{
#region LayerIssue Class
public class LayerIssue : IEnumerable<Point>
{
public enum IssueType : byte
{
Island,
ResinTrap,
TouchingBound,
//HoleSandwich,
}
/// <summary>
/// Gets the parent layer
/// </summary>
public Layer Layer { get; }
/// <summary>
/// Gets the issue type associated
/// </summary>
public IssueType Type { get; }
/// <summary>
/// Gets the pixels containing the issue
/// </summary>
public Point[] Pixels { get; }
/// <summary>
/// Gets the bounding rectangle of the pixel area
/// </summary>
public Rectangle BoundingRectangle { get; }
/// <summary>
/// Gets the X coordinate for the first point, -1 if doesn't exists
/// </summary>
public int X => HaveValidPoint ? Pixels[0].X : -1;
/// <summary>
/// Gets the Y coordinate for the first point, -1 if doesn't exists
/// </summary>
public int Y => HaveValidPoint ? Pixels[0].Y : -1;
/// <summary>
/// Gets the XY point for first point
/// </summary>
public Point Point => HaveValidPoint ? Pixels[0] : new Point(-1, -1);
/// <summary>
/// Gets the number of pixels on this issue
/// </summary>
public uint Size {
get
{
if (Type == IssueType.ResinTrap && !BoundingRectangle.IsEmpty)
{
return (uint) (BoundingRectangle.Width * BoundingRectangle.Height);
}
if (ReferenceEquals(Pixels, null)) return 0;
return (uint) Pixels.Length;
}
}
/// <summary>
/// Check if this issue have a valid start point to show
/// </summary>
public bool HaveValidPoint => !ReferenceEquals(Pixels, null) && Pixels.Length > 0;
public LayerIssue(Layer layer, IssueType type, Point[] pixels = null, Rectangle boundingRectangle = new Rectangle())
{
Layer = layer;
Type = type;
Pixels = pixels;
BoundingRectangle = boundingRectangle;
}
public Point this[uint index] => Pixels[index];
public Point this[int index] => Pixels[index];
public IEnumerator<Point> GetEnumerator()
{
return ((IEnumerable<Point>)Pixels).GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
public override string ToString()
{
return $"{nameof(Type)}: {Type}, Layer: {Layer.Index}, {nameof(X)}: {X}, {nameof(Y)}: {Y}, {nameof(Size)}: {Size}";
}
}
#endregion
#region LayerHollowArea
public class LayerHollowArea : IEnumerable<Point>
{
public enum AreaType : byte
{
Unknown = 0,
Trap,
Drain
}
/// <summary>
/// Gets area pixels
/// </summary>
public Point[] Contour { get; }
public System.Drawing.Rectangle BoundingRectangle { get; }
public AreaType Type { get; set; } = AreaType.Unknown;
public bool Processed { get; set; }
#region Indexers
public Point this[uint index]
{
get => index < Contour.Length ? Contour[index] : Point.Empty;
set => Contour[index] = value;
}
public Point this[int index]
{
get => index < Contour.Length ? Contour[index] : Point.Empty;
set => Contour[index] = value;
}
public Point this[uint x, uint y]
{
get
{
for (uint i = 0; i < Contour.Length; i++)
{
if (Contour[i].X == x && Contour[i].Y == y) return Contour[i];
}
return Point.Empty;
}
}
public Point this[int x, int y] => this[(uint) x, (uint)y];
public Point this[Point point] => this[point.X, point.Y];
#endregion
public IEnumerator<Point> GetEnumerator()
{
return ((IEnumerable<Point>)Contour).GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
public LayerHollowArea()
{
}
public LayerHollowArea(Point[] contour, System.Drawing.Rectangle boundingRectangle, AreaType type = AreaType.Unknown)
{
Contour = contour;
BoundingRectangle = boundingRectangle;
Type = type;
}
}
#endregion
#region Layer Class
/// <summary>
/// Represent a Layer
/// </summary>
public class Layer : IEquatable<Layer>, IEquatable<uint>
{
#region Properties
/// <summary>
/// Gets the parent layer manager
/// </summary>
public LayerManager ParentLayerManager { get; set; }
/// <summary>
/// Gets the layer index
/// </summary>
public uint Index { get; }
private byte[] _compressedBytes;
/// <summary>
/// Gets or sets layer image compressed data
/// </summary>
public byte[] CompressedBytes
{
get => LayerManager.DecompressLayer(_compressedBytes);
set
{
_compressedBytes = LayerManager.CompressLayer(value);
IsModified = true;
}
}
/// <summary>
/// Gets the original filename, null if no filename attached with layer
/// </summary>
public string Filename { get; set; }
/// <summary>
/// Gets if layer has been modified
/// </summary>
public bool IsModified { get; set; }
/// <summary>
/// Gets or sets a new image instance
/// </summary>
public Mat LayerMat
{
get
{
Mat mat = new Mat();
CvInvoke.Imdecode(CompressedBytes, ImreadModes.Grayscale, mat);
return mat;
}
set
{
using (var vector = new VectorOfByte())
{
CvInvoke.Imencode(".png", value, vector);
CompressedBytes = vector.ToArray();
}
}
}
/// <summary>
/// Gets a new Brg image instance
/// </summary>
public Mat BrgMat
{
get
{
Mat mat = LayerMat;
CvInvoke.CvtColor(mat, mat, ColorConversion.Gray2Bgr);
return mat;
}
}
#endregion
#region Constructor
public Layer(uint index, byte[] compressedBytes, string filename = null, LayerManager pararentLayerManager = null)
{
Index = index;
CompressedBytes = compressedBytes;
Filename = filename ?? $"Layer{index}.png";
IsModified = false;
ParentLayerManager = pararentLayerManager;
}
public Layer(uint index, Mat layerMat, string filename = null, LayerManager pararentLayerManager = null) : this(index, new byte[0], filename, pararentLayerManager)
{
LayerMat = layerMat;
IsModified = false;
}
public Layer(uint index, Stream stream, string filename = null, LayerManager pararentLayerManager = null) : this(index, stream.ToArray(), filename, pararentLayerManager)
{ }
#endregion
#region Equatables
public static bool operator ==(Layer obj1, Layer obj2)
{
return obj1.Equals(obj2);
}
public static bool operator !=(Layer obj1, Layer obj2)
{
return !obj1.Equals(obj2);
}
public static bool operator >(Layer obj1, Layer obj2)
{
return obj1.Index > obj2.Index;
}
public static bool operator <(Layer obj1, Layer obj2)
{
return obj1.Index < obj2.Index;
}
public static bool operator >=(Layer obj1, Layer obj2)
{
return obj1.Index >= obj2.Index;
}
public static bool operator <=(Layer obj1, Layer obj2)
{
return obj1.Index <= obj2.Index;
}
public bool Equals(uint other)
{
return Index == other;
}
public bool Equals(Layer other)
{
if (ReferenceEquals(null, other)) return false;
if (ReferenceEquals(this, other)) return true;
return Equals(_compressedBytes, other._compressedBytes);
}
public override bool Equals(object obj)
{
if (ReferenceEquals(null, obj)) return false;
if (ReferenceEquals(this, obj)) return true;
if (obj.GetType() != this.GetType()) return false;
return Equals((Layer)obj);
}
public override int GetHashCode()
{
return (_compressedBytes != null ? _compressedBytes.GetHashCode() : 0);
}
private sealed class IndexRelationalComparer : IComparer<Layer>
{
public int Compare(Layer x, Layer y)
{
if (ReferenceEquals(x, y)) return 0;
if (ReferenceEquals(null, y)) return 1;
if (ReferenceEquals(null, x)) return -1;
return x.Index.CompareTo(y.Index);
}
}
public static IComparer<Layer> IndexComparer { get; } = new IndexRelationalComparer();
#endregion
#region Formaters
public override string ToString()
{
return $"{nameof(Index)}: {Index}, {nameof(Filename)}: {Filename}, {nameof(IsModified)}: {IsModified}";
}
#endregion
#region Methods
public Layer PreviousLayer()
{
if (ReferenceEquals(ParentLayerManager, null) || Index == 0)
return null;
return ParentLayerManager[Index - 1];
}
public Layer NextLayer()
{
if (ReferenceEquals(ParentLayerManager, null) || Index >= ParentLayerManager.Count - 1)
return null;
return ParentLayerManager[Index + 1];
}
/// <summary>
/// Gets all islands start pixel location for this layer
/// https://www.geeksforgeeks.org/find-number-of-islands/
/// </summary>
/// <returns><see cref="List{T}"/> holding all islands coordinates</returns>
public List<LayerIssue> GetIssues(uint requiredPixelsToSupportIsland = 5)
{
if (requiredPixelsToSupportIsland == 0)
requiredPixelsToSupportIsland = 1;
// These arrays are used to
// get row and column numbers
// of 8 neighbors of a given cell
List<LayerIssue> result = new List<LayerIssue>();
List<Point> pixels = new List<Point>();
var mat = LayerMat;
var bytes = mat.GetPixelSpan<byte>();
var previousLayerImage = PreviousLayer()?.LayerMat;
var previousBytes = previousLayerImage?.GetBytes();
/*var nextLayerImage = NextLayer()?.Image;
byte[] nextBytes = null;
if (!ReferenceEquals(nextLayerImage, null))
{
if (nextLayerImage.TryGetSinglePixelSpan(out var nextPixelSpan))
{
nextBytes = MemoryMarshal.AsBytes(nextPixelSpan).ToArray();
}
}*/
// Make a bool array to
// mark visited cells.
// Initially all cells
// are unvisited
bool[,] visited = new bool[mat.Width, mat.Height];
// Initialize count as 0 and
// traverse through the all
// cells of given matrix
//uint count = 0;
// Island checker
sbyte[] rowNbr = { -1, -1, -1, 0, 0, 1, 1, 1 };
sbyte[] colNbr = { -1, 0, 1, -1, 1, -1, 0, 1 };
const uint minPixel = 10;
const uint minPixelForSupportIsland = 200;
int pixelIndex;
uint islandSupportingPixels;
if (Index > 0)
{
for (int y = 0; y < mat.Height; y++)
{
for (int x = 0; x < mat.Width; x++)
{
pixelIndex = y * mat.Width + x;
/*if (bytes[pixelIndex] == 0 && previousBytes?[pixelIndex] == byte.MaxValue &&
nextBytes?[pixelIndex] == byte.MaxValue)
{
result.Add(new LayerIssue(this, LayerIssue.IssueType.HoleSandwich, new []{new Point(x, y)}));
}*/
if (bytes[pixelIndex] > minPixel && !visited[x, y])
{
// If a cell with value 1 is not
// visited yet, then new island
// found, Visit all cells in this
// island and increment island count
pixels.Clear();
pixels.Add(new Point(x, y));
islandSupportingPixels = previousBytes[pixelIndex] >= minPixelForSupportIsland ? 1u : 0;
int minX = x;
int maxX = x;
int minY = y;
int maxY = y;
int x2;
int y2;
Queue<Point> queue = new Queue<Point>();
queue.Enqueue(new Point(x, y));
// Mark this cell as visited
visited[x, y] = true;
while (queue.Count > 0)
{
var point = queue.Dequeue();
y2 = point.Y;
x2 = point.X;
for (byte k = 0; k < 8; k++)
{
//if (isSafe(y2 + rowNbr[k], x2 + colNbr[k]))
var tempy2 = y2 + rowNbr[k];
var tempx2 = x2 + colNbr[k];
pixelIndex = tempy2 * mat.Width + tempx2;
if (tempy2 >= 0 &&
tempy2 < mat.Height &&
tempx2 >= 0 && tempx2 < mat.Width &&
bytes[pixelIndex] >= minPixel &&
!visited[tempx2, tempy2])
{
visited[tempx2, tempy2] = true;
point = new Point(tempx2, tempy2);
pixels.Add(point);
queue.Enqueue(point);
minX = Math.Min(minX, tempx2);
maxX = Math.Max(maxX, tempx2);
minY = Math.Min(minY, tempy2);
maxY = Math.Max(maxY, tempy2);
islandSupportingPixels += previousBytes[pixelIndex] >= minPixelForSupportIsland ? 1u : 0;
}
}
}
//count++;
if (islandSupportingPixels >= requiredPixelsToSupportIsland)
continue; // Not a island, bounding is strong
if (islandSupportingPixels > 0 && pixels.Count < requiredPixelsToSupportIsland &&
islandSupportingPixels >= Math.Max(1, pixels.Count / 2)) continue; // Not a island
result.Add(new LayerIssue(this, LayerIssue.IssueType.Island, pixels.ToArray(), new Rectangle(minX, minY, maxX-minX, maxY-minY)));
}
}
}
}
pixels.Clear();
// TouchingBounds Checker
for (int x = 0; x < mat.Width; x++) // Check Top and Bottom bounds
{
if (bytes[x] >= 200) // Top
{
pixels.Add(new Point(x, 0));
}
if (bytes[mat.Width * mat.Height - mat.Width + x] >= 200) // Bottom
{
pixels.Add(new Point(x, mat.Height-1));
}
}
for (int y = 0; y < mat.Height; y++) // Check Left and Right bounds
{
if (bytes[y * mat.Width] >= 200) // Left
{
pixels.Add(new Point(0, y));
}
if (bytes[y * mat.Width + mat.Width - 1] >= 200) // Right
{
pixels.Add(new Point(mat.Width-1, y));
}
}
if (pixels.Count > 0)
{
result.Add(new LayerIssue(this, LayerIssue.IssueType.TouchingBound, pixels.ToArray()));
}
pixels.Clear();
return result;
}
public void MutateResize(double xScale, double yScale)
{
using (var mat = LayerMat)
{
mat.ScaleFromCenter(xScale, yScale);
LayerMat = mat;
}
}
public void MutateSolidify()
{
using (Mat mat = LayerMat)
{
using (Mat filteredMat = new Mat())
{
CvInvoke.Threshold(mat, filteredMat, 254, 255, ThresholdType.Binary); // Clean AA
using (VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint())
{
using (Mat hierarchy = new Mat())
{
CvInvoke.FindContours(filteredMat, contours, hierarchy, RetrType.Ccomp, ChainApproxMethod.ChainApproxSimple);
var arr = hierarchy.GetData();
for (int i = 0; i < contours.Size; i++)
{
if ((int) arr.GetValue(0, i, 2) != -1 || (int) arr.GetValue(0, i, 3) == -1) continue;
CvInvoke.DrawContours(mat, contours, i, new MCvScalar(255), -1);
}
}
}
}
LayerMat = mat;
}
}
public void MutateErode(int iterations = 1, IInputArray kernel = null, Point anchor = default, BorderType borderType = BorderType.Default, MCvScalar borderValue = default)
{
if(anchor.IsEmpty) anchor = new Point(-1, -1);
if (ReferenceEquals(kernel, null))
{
kernel = CvInvoke.GetStructuringElement(ElementShape.Rectangle, new Size(3, 3), anchor);
}
using (Mat dst = LayerMat)
{
CvInvoke.Erode(dst, dst, kernel, anchor, iterations, borderType, borderValue);
LayerMat = dst;
}
}
public void MutateDilate(int iterations = 1, IInputArray kernel = null, Point anchor = default, BorderType borderType = BorderType.Default, MCvScalar borderValue = default)
{
if (anchor.IsEmpty) anchor = new Point(-1, -1);
if (ReferenceEquals(kernel, null))
{
kernel = CvInvoke.GetStructuringElement(ElementShape.Rectangle, new Size(3, 3), anchor);
}
using (Mat dst = LayerMat)
{
CvInvoke.Dilate(dst, dst, kernel, anchor, iterations, borderType, borderValue);
LayerMat = dst;
}
}
public void MutateOpen(int iterations = 1, IInputArray kernel = null, Point anchor = default, BorderType borderType = BorderType.Default, MCvScalar borderValue = default)
{
if (anchor.IsEmpty) anchor = new Point(-1, -1);
if (ReferenceEquals(kernel, null))
{
kernel = CvInvoke.GetStructuringElement(ElementShape.Rectangle, new Size(3, 3), anchor);
}
using (Mat dst = LayerMat)
{
CvInvoke.MorphologyEx(dst, dst, MorphOp.Open, kernel, anchor, iterations, borderType, borderValue);
LayerMat = dst;
}
}
public void MutateClose(int iterations = 1, IInputArray kernel = null, Point anchor = default, BorderType borderType = BorderType.Default, MCvScalar borderValue = default)
{
if (anchor.IsEmpty) anchor = new Point(-1, -1);
if (ReferenceEquals(kernel, null))
{
kernel = CvInvoke.GetStructuringElement(ElementShape.Rectangle, new Size(3, 3), anchor);
}
using (Mat dst = LayerMat)
{
CvInvoke.MorphologyEx(dst, dst, MorphOp.Close, kernel, anchor, iterations, borderType, borderValue);
LayerMat = dst;
}
}
public void MutateGradient(int iterations = 1, IInputArray kernel = null, Point anchor = default, BorderType borderType = BorderType.Default, MCvScalar borderValue = default)
{
if (anchor.IsEmpty) anchor = new Point(-1, -1);
if (ReferenceEquals(kernel, null))
{
kernel = CvInvoke.GetStructuringElement(ElementShape.Cross, new Size(3, 3), anchor);
}
using (Mat dst = LayerMat)
{
CvInvoke.MorphologyEx(dst, dst, MorphOp.Gradient, kernel, anchor, iterations, borderType, borderValue);
LayerMat = dst;
}
}
public void MutatePyrDownUp(BorderType borderType = BorderType.Reflect101)
{
using (Mat dst = LayerMat)
{
CvInvoke.PyrDown(dst, dst, borderType);
CvInvoke.PyrUp(dst, dst, borderType);
LayerMat = dst;
}
}
public void MutateMedianBlur(int aperture = 1)
{
using (Mat dst = LayerMat)
{
CvInvoke.MedianBlur(dst, dst, aperture);
LayerMat = dst;
}
}
public void MutateGaussianBlur(Size size = default, int sigmaX = 0, int sigmaY = 0, BorderType borderType = BorderType.Reflect101)
{
if(size.IsEmpty) size = new Size(5, 5);
using (Mat dst = LayerMat)
{
CvInvoke.GaussianBlur(dst, dst, size, sigmaX, sigmaY, borderType);
LayerMat = dst;
}
}
public Layer Clone()
{
return new Layer(Index, CompressedBytes, Filename, ParentLayerManager);
}
#endregion
}
#endregion
#region LayerManager Class
public class LayerManager : IEnumerable<Layer>
{
#region Properties
/// <summary>
/// Layers List
/// </summary>
public Layer[] Layers { get; }
/// <summary>
/// Gets the layers count
/// </summary>
public uint Count => (uint) Layers.Length;
/// <summary>
/// Gets if any layer got modified, otherwise false
/// </summary>
public bool IsModified
{
get
{
for (uint i = 0; i < Count; i++)
{
if (Layers[i].IsModified) return true;
}
return false;
}
}
#endregion
#region Constructors
public LayerManager(uint layerCount)
{
Layers = new Layer[layerCount];
}
#endregion
#region Indexers
public Layer this[uint index]
{
get => Layers[index];
set => AddLayer(index, value);
}
public Layer this[int index]
{
get => Layers[index];
set => AddLayer((uint) index, value);
}
public Layer this[long index]
{
get => Layers[index];
set => AddLayer((uint) index, value);
}
#endregion
#region Numerators
public IEnumerator<Layer> GetEnumerator()
{
return ((IEnumerable<Layer>)Layers).GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
#endregion
#region Static Methods
/// <summary>
/// Compress a layer from a <see cref="Stream"/>
/// </summary>
/// <param name="input"><see cref="Stream"/> to compress</param>
/// <returns>Compressed byte array</returns>
public static byte[] CompressLayer(Stream input)
{
return CompressLayer(input.ToArray());
}
/// <summary>
/// Compress a layer from a byte array
/// </summary>
/// <param name="input">byte array to compress</param>
/// <returns>Compressed byte array</returns>
public static byte[] CompressLayer(byte[] input)
{
return input;
/*using (MemoryStream output = new MemoryStream())
{
using (DeflateStream dstream = new DeflateStream(output, CompressionLevel.Optimal))
{
dstream.Write(input, 0, input.Length);
}
return output.ToArray();
}*/
}
/// <summary>
/// Decompress a layer from a byte array
/// </summary>
/// <param name="input">byte array to decompress</param>
/// <returns>Decompressed byte array</returns>
public static byte[] DecompressLayer(byte[] input)
{
return input;
/*using (MemoryStream ms = new MemoryStream(input))
{
using (MemoryStream output = new MemoryStream())
{
using (DeflateStream dstream = new DeflateStream(ms, CompressionMode.Decompress))
{
dstream.CopyTo(output);
}
return output.ToArray();
}
}*/
}
#endregion
#region Methods
/// <summary>
/// Add a layer
/// </summary>
/// <param name="index">Layer index</param>
/// <param name="layer">Layer to add</param>
public void AddLayer(uint index, Layer layer)
{
Layers[index] = layer;
layer.ParentLayerManager = this;
}
/// <summary>
/// Get layer given index
/// </summary>
/// <param name="index">Layer index</param>
/// <returns></returns>
public Layer GetLayer(uint index)
{
return Layers[index];
}
/// <summary>
/// Resizes layer images in x and y factor, starting at 1 = 100%
/// </summary>
/// <param name="startLayerIndex">Layer index to start</param>
/// <param name="endLayerIndex">Layer index to end</param>
/// <param name="x">X factor, starts at 1</param>
/// <param name="y">Y factor, starts at 1</param>
/// <param name="isFade">Fade X/Y towards 100%</param>
public void MutateResize(uint startLayerIndex, uint endLayerIndex, double x, double y, bool isFade)
{
if (x == 1.0 && y == 1.0) return;
double xSteps = Math.Abs(x - 1.0) / (endLayerIndex - startLayerIndex);
double ySteps = Math.Abs(y - 1.0) / (endLayerIndex - startLayerIndex);
Parallel.For(startLayerIndex, endLayerIndex + 1, layerIndex =>
{
var newX = x;
var newY = y;
if (isFade)
{
if (newX != 1.0)
{
//maxIteration = Math.Max(iterationsStart, iterationsEnd);
newX = (float)(newX < 1.0
? newX + (layerIndex - startLayerIndex) * xSteps
: newX - (layerIndex - startLayerIndex) * xSteps);
// constrain
//iterations = Math.Min(Math.Max(1, iterations), maxIteration);
}
if (y != 1.0)
{
//maxIteration = Math.Max(iterationsStart, iterationsEnd);
newY = (float)(newY < 1.0
? newY + (layerIndex - startLayerIndex) * ySteps
: newY - (layerIndex - startLayerIndex) * ySteps);
// constrain
//iterations = Math.Min(Math.Max(1, iterations), maxIteration);
}
}
if (newX == 1.0 && newY == 1.0) return;
this[layerIndex].MutateResize(newX, newY);
});
}
public void MutateSolidify(uint startLayerIndex, uint endLayerIndex)
{
Parallel.For(startLayerIndex, endLayerIndex + 1, layerIndex =>
{
this[layerIndex].MutateSolidify();
});
}
private void MutateGetVarsIterationFade(uint startLayerIndex, uint endLayerIndex, int iterationsStart, int iterationsEnd, ref bool isFade, out int iterationSteps, out int maxIteration)
{
iterationSteps = 0;
maxIteration = 0;
isFade = isFade && startLayerIndex != endLayerIndex && iterationsStart != iterationsEnd;
if (!isFade) return;
iterationSteps = (int)Math.Abs((double)(iterationsStart - iterationsEnd) / (endLayerIndex - startLayerIndex));
maxIteration = Math.Max(iterationsStart, iterationsEnd);
}
private int MutateGetIterationVar(bool isFade, int iterationsStart, int iterationsEnd, int iterationSteps, int maxIteration, uint startLayerIndex, uint layerIndex)
{
if(!isFade) return iterationsStart;
// calculate iterations based on range
int iterations = (int)(iterationsStart < iterationsEnd
? iterationsStart + (layerIndex - startLayerIndex) * iterationSteps
: iterationsStart - (layerIndex - startLayerIndex) * iterationSteps);
// constrain
return Math.Min(Math.Max(1, iterations), maxIteration);
}
public void MutateErode(uint startLayerIndex, uint endLayerIndex, int iterationsStart = 1, int iterationsEnd = 1, bool isFade = false,
IInputArray kernel = null, Point anchor = default,
BorderType borderType = BorderType.Default, MCvScalar borderValue = default)
{
MutateGetVarsIterationFade(
startLayerIndex,
endLayerIndex,
iterationsStart,
iterationsEnd,
ref isFade,
out var iterationSteps,
out var maxIteration
);
Parallel.For(startLayerIndex, endLayerIndex + 1, layerIndex =>
{
int iterations = MutateGetIterationVar(isFade, iterationsStart, iterationsEnd, iterationSteps, maxIteration, startLayerIndex, (uint) layerIndex);
this[layerIndex].MutateErode(iterations, kernel, anchor, borderType, borderValue);
});
}
public void MutateDilate(uint startLayerIndex, uint endLayerIndex, int iterationsStart = 1, int iterationsEnd = 1, bool isFade = false,
IInputArray kernel = null, Point anchor = default,
BorderType borderType = BorderType.Default, MCvScalar borderValue = default)
{
MutateGetVarsIterationFade(
startLayerIndex,
endLayerIndex,
iterationsStart,
iterationsEnd,
ref isFade,
out var iterationSteps,
out var maxIteration
);
Parallel.For(startLayerIndex, endLayerIndex + 1, layerIndex =>
{
int iterations = MutateGetIterationVar(isFade, iterationsStart, iterationsEnd, iterationSteps, maxIteration, startLayerIndex, (uint)layerIndex);
this[layerIndex].MutateDilate(iterations, kernel, anchor, borderType, borderValue);
});
}
public void MutateOpen(uint startLayerIndex, uint endLayerIndex, int iterationsStart = 1, int iterationsEnd = 1, bool isFade = false,
IInputArray kernel = null, Point anchor = default,
BorderType borderType = BorderType.Default, MCvScalar borderValue = default)
{
MutateGetVarsIterationFade(
startLayerIndex,
endLayerIndex,
iterationsStart,
iterationsEnd,
ref isFade,
out var iterationSteps,
out var maxIteration
);
Parallel.For(startLayerIndex, endLayerIndex + 1, layerIndex =>
{
int iterations = MutateGetIterationVar(isFade, iterationsStart, iterationsEnd, iterationSteps, maxIteration, startLayerIndex, (uint)layerIndex);
this[layerIndex].MutateOpen(iterations, kernel, anchor, borderType, borderValue);
});
}
public void MutateClose(uint startLayerIndex, uint endLayerIndex, int iterationsStart = 1, int iterationsEnd = 1, bool isFade = false,
IInputArray kernel = null, Point anchor = default,
BorderType borderType = BorderType.Default, MCvScalar borderValue = default)
{
MutateGetVarsIterationFade(
startLayerIndex,
endLayerIndex,
iterationsStart,
iterationsEnd,
ref isFade,
out var iterationSteps,
out var maxIteration
);
Parallel.For(startLayerIndex, endLayerIndex + 1, layerIndex =>
{
int iterations = MutateGetIterationVar(isFade, iterationsStart, iterationsEnd, iterationSteps, maxIteration, startLayerIndex, (uint)layerIndex);
this[layerIndex].MutateClose(iterations, kernel, anchor, borderType, borderValue);
});
}
public void MutateGradient(uint startLayerIndex, uint endLayerIndex, int iterationsStart = 1, int iterationsEnd = 1, bool isFade = false,
IInputArray kernel = null, Point anchor = default,
BorderType borderType = BorderType.Default, MCvScalar borderValue = default)
{
MutateGetVarsIterationFade(
startLayerIndex,
endLayerIndex,
iterationsStart,
iterationsEnd,
ref isFade,
out var iterationSteps,
out var maxIteration
);
Parallel.For(startLayerIndex, endLayerIndex + 1, layerIndex =>
{
int iterations = MutateGetIterationVar(isFade, iterationsStart, iterationsEnd, iterationSteps, maxIteration, startLayerIndex, (uint)layerIndex);
this[layerIndex].MutateGradient(iterations, kernel, anchor, borderType, borderValue);
});
}
public void MutatePyrDownUp(uint startLayerIndex, uint endLayerIndex, BorderType borderType = BorderType.Default)
{
Parallel.For(startLayerIndex, endLayerIndex + 1, layerIndex =>
{
this[layerIndex].MutatePyrDownUp(borderType);
});
}
public void MutateMedianBlur(uint startLayerIndex, uint endLayerIndex, int aperture = 1)
{
Parallel.For(startLayerIndex, endLayerIndex + 1, layerIndex =>
{
this[layerIndex].MutateMedianBlur(aperture);
});
}
public void MutateGaussianBlur(uint startLayerIndex, uint endLayerIndex, Size size = default, int sigmaX = 0, int sigmaY = 0, BorderType borderType = BorderType.Reflect101)
{
Parallel.For(startLayerIndex, endLayerIndex + 1, layerIndex =>
{
this[layerIndex].MutateGaussianBlur(size, sigmaX, sigmaY, borderType);
});
}
public ConcurrentDictionary<uint, List<LayerIssue>> GetAllIssues()
{
const byte requiredPixelsToSupportIsland = 10;
const byte minIslandPixelToCheck = 10;
const byte minIslandSupportPixelColor = 150;
const byte minTouchingBondsPixelColor = 200;
var result = new ConcurrentDictionary<uint, List<LayerIssue>>();
/*Parallel.ForEach(this, layer =>
{
var issues = layer.GetIssues();
if (issues.Count > 0)
{
if (!result.TryAdd(layer.Index, issues))
{
throw new AccessViolationException("Error while trying to add an issue to the dictionary, please try again.");
}
}
});*/
var task1 = new TaskFactory().StartNew(() =>
{
// Detect contours
Parallel.ForEach(this,
//new ParallelOptions{MaxDegreeOfParallelism = 1},
layer =>
{
using (var image = layer.LayerMat)
{
int step = image.Step;
var span = image.GetPixelSpan<byte>();
// TouchingBounds Checker
List<Point> pixels = new List<Point>();
for (int x = 0; x < image.Width; x++) // Check Top and Bottom bounds
{
if (span[x] >= minTouchingBondsPixelColor) // Top
{
pixels.Add(new Point(x, 0));
}
if (span[step * image.Height - step + x] >= minTouchingBondsPixelColor) // Bottom
{
pixels.Add(new Point(x, image.Height - 1));
}
}
for (int y = 0; y < image.Height; y++) // Check Left and Right bounds
{
if (span[y * step] >= minTouchingBondsPixelColor) // Left
{
pixels.Add(new Point(0, y));
}
if (span[y * step + step - 1] >= minTouchingBondsPixelColor) // Right
{
pixels.Add(new Point(step - 1, y));
}
}
if (pixels.Count > 0)
{
result.TryAdd(layer.Index, new List<LayerIssue>
{
new LayerIssue(layer, LayerIssue.IssueType.TouchingBound, pixels.ToArray())
});
}
if (layer.Index == 0) return; // No inslands for layer 0
CvInvoke.Threshold(image, image, 1, 255, ThresholdType.Binary);
VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint();
Mat hierarchy = new Mat();
CvInvoke.FindContours(image, contours, hierarchy, RetrType.Ccomp,
ChainApproxMethod.ChainApproxSimple);
var arr = hierarchy.GetData();
//
//hierarchy[i][0]: the index of the next contour of the same level
//hierarchy[i][1]: the index of the previous contour of the same level
//hierarchy[i][2]: the index of the first child
//hierarchy[i][3]: the index of the parent
//
Mat previousImage = null;
Span<byte> previousSpan = null;
Span<byte> imageSpan = null;
for (int i = 0; i < contours.Size; i++)
{
if ((int) arr.GetValue(0, i, 2) == -1 && (int) arr.GetValue(0, i, 3) != -1) continue;
if (ReferenceEquals(previousImage, null))
{
previousImage = this[layer.Index - 1].LayerMat;
previousSpan = previousImage.GetPixelSpan<byte>();
imageSpan = image.GetPixelSpan<byte>();
}
var rect = CvInvoke.BoundingRectangle(contours[i]);
List<Point> points = new List<Point>();
uint pixelsSupportingIsland = 0;
using (Mat contourImage = image.CloneBlank())
{
CvInvoke.DrawContours(contourImage, contours, i, new MCvScalar(255), -1);
var contourImageSpan = contourImage.GetPixelSpan<byte>();
for (int y = rect.Y; y < rect.Bottom; y++)
{
for (int x = rect.X; x < rect.Right; x++)
{
//int pixel = image.GetPixelPos(x, y);
int pixel = step * y + x;
if (imageSpan[pixel] < minIslandPixelToCheck)
continue; // Low brightness, ignore
if (contourImageSpan[pixel] != 255)
continue; // Not inside contour, ignore
//if (CvInvoke.PointPolygonTest(contours[i], new PointF(x, y), false) < 0) continue; // Out of contour SLOW!
//Debug.WriteLine($"Layer: {layer.Index}, Coutour: {i}, X:{x} Y:{y}");
points.Add(new Point(x, y));
if (previousSpan[pixel] >= minIslandSupportPixelColor)
{
pixelsSupportingIsland++;
}
}
}
}
if (points.Count == 0) continue;
if (pixelsSupportingIsland >= requiredPixelsToSupportIsland)
continue; // Not a island, bounding is strong, i think...
if (pixelsSupportingIsland > 0 && points.Count < requiredPixelsToSupportIsland &&
pixelsSupportingIsland >= Math.Max(1, points.Count / 2))
continue; // Not a island, but maybe weak bounding...
var issue = new LayerIssue(layer, LayerIssue.IssueType.Island, points.ToArray(), rect);
result.AddOrUpdate(layer.Index, new List<LayerIssue> {issue},
(layerIndex, list) =>
{
list.Add(issue);
return list;
});
}
contours.Dispose();
hierarchy.Dispose();
previousImage?.Dispose();
}
});
});
var layerHollowAreas = new ConcurrentDictionary<uint, List<LayerHollowArea>>();
var task2 = new TaskFactory().StartNew(() =>
{
// Detect contours
Parallel.ForEach(this,
//new ParallelOptions{MaxDegreeOfParallelism = 1},
layer =>
{
using (var image = layer.LayerMat)
{
CvInvoke.Threshold(image, image, 254, 255, ThresholdType.Binary);
var listHollowArea = new List<LayerHollowArea>();
using (VectorOfVectorOfPoint contours = new VectorOfVectorOfPoint())
{
using (Mat hierarchy = new Mat())
{
CvInvoke.FindContours(image, contours, hierarchy, RetrType.Ccomp,
ChainApproxMethod.ChainApproxSimple);
var arr = hierarchy.GetData();
//
//hierarchy[i][0]: the index of the next contour of the same level
//hierarchy[i][1]: the index of the previous contour of the same level
//hierarchy[i][2]: the index of the first child
//hierarchy[i][3]: the index of the parent
//
for (int i = 0; i < contours.Size; i++)
{
if ((int) arr.GetValue(0, i, 2) != -1 || (int) arr.GetValue(0, i, 3) == -1)
continue;
listHollowArea.Add(new LayerHollowArea(contours[i].ToArray(),
CvInvoke.BoundingRectangle(contours[i]),
layer.Index == 0 || layer.Index == Count - 1
? LayerHollowArea.AreaType.Drain
: LayerHollowArea.AreaType.Unknown));
if (listHollowArea.Count > 0)
layerHollowAreas.TryAdd(layer.Index, listHollowArea);
}
}
}
}
});
for (uint layerIndex = 1; layerIndex < Count - 1; layerIndex++) // Ignore first and last layers, always drains
{
if (!layerHollowAreas.TryGetValue(layerIndex, out var areas))
continue; // No hollow areas in this layer, ignore
byte areaCount = 0;
//foreach (var area in areas)
Parallel.ForEach(from t in areas where t.Type == LayerHollowArea.AreaType.Unknown select t, area =>
{
//if (area.Type != LayerHollowArea.AreaType.Unknown) return; // processed, ignore
area.Type = LayerHollowArea.AreaType.Trap;
areaCount++;
List<LayerHollowArea> linkedAreas = new List<LayerHollowArea>();
for (sbyte dir = 1; dir >= -1 && area.Type != LayerHollowArea.AreaType.Drain; dir -= 2)
//Parallel.ForEach(new sbyte[] {1, -1}, new ParallelOptions {MaxDegreeOfParallelism = 2}, dir =>
{
Queue<LayerHollowArea> queue = new Queue<LayerHollowArea>();
queue.Enqueue(area);
area.Processed = false;
int nextLayerIndex = (int) layerIndex;
while (queue.Count > 0 && area.Type != LayerHollowArea.AreaType.Drain)
{
LayerHollowArea checkArea = queue.Dequeue();
if (checkArea.Processed) continue;
checkArea.Processed = true;
nextLayerIndex += dir;
Debug.WriteLine($"Area Count: {areaCount} | Layer: {layerIndex} | Next Layer: {nextLayerIndex} | Dir: {dir}");
if (nextLayerIndex < 0 && nextLayerIndex >= Count)
break; // Exhausted layers
bool haveNextAreas = layerHollowAreas.TryGetValue((uint) nextLayerIndex, out var nextAreas);
List<LayerHollowArea> intersectingAreas = new List<LayerHollowArea>();
using (var image = this[nextLayerIndex].LayerMat)
{
var span = image.GetPixelSpan<byte>();
using (var emguImage = image.CloneBlank())
{
using(var vec = new VectorOfVectorOfPoint(new VectorOfPoint(checkArea.Contour)))
{
CvInvoke.DrawContours(emguImage, vec, -1, new MCvScalar(255), -1);
}
if (haveNextAreas)
{
foreach (var nextArea in nextAreas)
{
if (!checkArea.BoundingRectangle.IntersectsWith(nextArea.BoundingRectangle)) continue;
intersectingAreas.Add(nextArea);
/*CvInvoke.DrawContours(emguImage,
new VectorOfVectorOfPoint(new VectorOfPoint(nextArea.Contour)),
-1,
new MCvScalar(intersectingAreas.Count), -1);*/
}
if (intersectingAreas.Count == 0)
{
haveNextAreas = false;
}
}
bool exitPixelLoop = false;
uint blackCount = 0;
var spanContour = emguImage.GetPixelSpan<byte>();
for (int y = checkArea.BoundingRectangle.Y;
y <= checkArea.BoundingRectangle.Bottom &&
area.Type != LayerHollowArea.AreaType.Drain && !exitPixelLoop;
y++)
{
int pixelPos = image.GetPixelPos(checkArea.BoundingRectangle.X, y)-1;
for (int x = checkArea.BoundingRectangle.X;
x <= checkArea.BoundingRectangle.Right &&
area.Type != LayerHollowArea.AreaType.Drain && !exitPixelLoop;
x++)
{
pixelPos++;
if (spanContour[pixelPos] == 0) continue; // No contour
if (span[pixelPos] > 30) continue; // Threshold to ignore white area
blackCount++;
if (haveNextAreas) // Have areas, can be on same area path or not
{
/*int i = spanContour[pixelPos] - 1;
if (i == -1 || i >= 254)
continue;
//if(queue.Contains(intersectingAreas[i])) continue;
//Debug.WriteLine($"BlackCount: {blackCount}, pixel color: {i}, layerindex: {layerIndex}");
if (intersectingAreas[i].Type == LayerHollowArea.AreaType.Drain) // Found a drain, stop query
{
area.Type = LayerHollowArea.AreaType.Drain;
}
else
{
queue.Enqueue(intersectingAreas[i]);
}
linkedAreas.Add(intersectingAreas[i]);
exitPixelLoop = true;
break;*/
foreach (var nextAreaCheck in intersectingAreas)
{
using (var vec = new VectorOfPoint(nextAreaCheck.Contour))
{
//Debug.WriteLine(CvInvoke.PointPolygonTest(vec, new PointF(x, y), false));
if (CvInvoke.PointPolygonTest(vec, new PointF(x, y), false) < 0) continue;
}
if (nextAreaCheck.Type == LayerHollowArea.AreaType.Drain
) // Found a drain, stop query
{
area.Type = LayerHollowArea.AreaType.Drain;
exitPixelLoop = true;
}
else
{
queue.Enqueue(area);
}
linkedAreas.Add(nextAreaCheck);
intersectingAreas.Remove(nextAreaCheck);
haveNextAreas = intersectingAreas.Count > 0;
break;
//exitPixelLoop = true;
//break;
}
}
else if (blackCount > Math.Min(checkArea.Contour.Length / 2, 10)) // Black pixel without next areas = Drain
{
area.Type = LayerHollowArea.AreaType.Drain;
exitPixelLoop = true;
break;
}
} // X loop
} // Y loop
if (queue.Count == 0 && blackCount > Math.Min(checkArea.Contour.Length / 2, 10))
{
area.Type = LayerHollowArea.AreaType.Drain;
}
} // Dispose emgu image
} // Dispose image
} // Areas loop
} // Dir layer loop
foreach (var linkedArea in linkedAreas) // Update linked areas
{
linkedArea.Type = area.Type;
}
});
}
});
task1.Wait(); // Islands & bounds
task2.Wait(); // Resin trap
for (uint layerIndex = 0; layerIndex < Count; layerIndex++)
{
if (!layerHollowAreas.TryGetValue(layerIndex, out var list)) continue;
if (list.Count == 0) continue;
foreach (var issue in
from area
in list
where area.Type == LayerHollowArea.AreaType.Trap
select new LayerIssue(this[layerIndex], LayerIssue.IssueType.ResinTrap, area.Contour, area.BoundingRectangle))
{
result.AddOrUpdate(layerIndex, new List<LayerIssue> {issue}, (u, listIssues) =>
{
listIssues.Add(issue);
return listIssues;
});
}
}
return result;
}
/// <summary>
/// Desmodify all layers
/// </summary>
public void Desmodify()
{
for (uint i = 0; i < Count; i++)
{
Layers[i].IsModified = false;
}
}
/// <summary>
/// Clone this object
/// </summary>
/// <returns></returns>
public LayerManager Clone()
{
LayerManager layerManager = new LayerManager(Count);
foreach (var layer in this)
{
layerManager[layer.Index] = layer.Clone();
}
return layerManager;
}
#endregion
}
#endregion
}
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