Files
marketdata/MarketDataLib/CNNProcessing/DataProcessor.cs

617 lines
23 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Drawing;
using System.IO;
using MarketData.Numerical;
using MarketData.DataAccess;
using MarketData.MarketDataModel;
using MarketData.Generator;
using MarketData.Utils;
using System.Drawing.Drawing2D;
using MarketData.Generator.MovingAverage;
namespace MarketData.CNNProcessing
{
public class DataProcessor
{
private String strFolderPath=@"c:\1\";
public DataProcessor(int width=640,int height=480)
{
Width=width;
Height=height;
PenWidth=2f;
DrawingBrush=new SolidBrush(Color.Black);
DrawingBrushRed=new SolidBrush(Color.Red);
DrawingBrushGreen=new SolidBrush(Color.Green);
FillBrush=new SolidBrush(Color.White);
DrawPrice=true;
UseGrayScale=false;
NoiseColor=Color.White;
}
/// <summary>
/// Width
/// </summary>
///<param name="value">Gets/Sets the width of the output image</param>
public int Width{get;set;}
/// <summary>
/// Height
/// </summary>
///<param name="value">Gets/Sets the height of the output image</param>
public int Height{get;set;}
/// <summary>
/// PenWidth
/// </summary>
///<param name="value">Gets/Sets the width of the drawing pen</param>
public float PenWidth{get;set;}
/// <summary>
/// FillBrush
/// </summary>
///<param name="value">Gets/Sets the background brush</param>
public Brush FillBrush{get;set;}
/// <summary>
/// DrawingBrush
/// </summary>
///<param name="value">Gets/Sets the drawing brush brush</param>
public Brush DrawingBrush{get;set;}
/// <summary>
/// DrawingBrushRed
/// </summary>
///<param name="value">Gets/Sets the drawing brush brush</param>
public Brush DrawingBrushRed{get;set;}
/// <summary>
/// DrawingBrushGreen
/// </summary>
///<param name="value">Gets/Sets the drawing brush brush</param>
public Brush DrawingBrushGreen{get;set;}
/// <summary>
/// DrawBlack
/// </summary>
///<param name="value">Sets up the canvas to do black drawing</param>
public void DrawBlack()
{
DrawingBrush=new SolidBrush(Color.Black);
FillBrush=new SolidBrush(Color.White);
}
/// <summary>
/// IncludePrice
/// </summary>
///<param name="value">Indicates whether we want to include price data in the graph</param>
public bool DrawPrice{get; set;}
/// <summary>
/// UseGrayScale
/// </summary>
///<param name="value">Indicates whether we want to use grayscale.. default is B&W</param>
public bool UseGrayScale{get; set;}
/// <summary>
/// DrawWhite
/// </summary>
///<param name="value">Sets up the canvas to do white drawing</param>
public void DrawWhite()
{
DrawingBrush=new SolidBrush(Color.White);
FillBrush=new SolidBrush(Color.Black);
}
/// <summary>
/// MovingAverageArray
/// </summary>
///<param name="MovingAverageArray">Gets/Sets the moving average array</param>
public int[] MovingAverageArray{get; set; }
/// <summary>
/// PenWidthArray
/// </summary>
///<param name="PenWidthArray">Gets/Sets thepen width array</param>
public float[] PenWidthArray{get; set; }
/// <summary>
/// NoiseArray
/// </summary>
///<param name="NoiseArray">Gets/Sets the noise array</param>
public double[] NoiseArray{get; set; }
/// <summary>
/// NoiseColor
/// </summary>
///<param name="NoiseColor">Gets/Sets the noise color</param>
public Color NoiseColor{get; set; }
/// <summary>
/// UseNoise
/// </summary>
///<param name="seed">The seed value</param>
///<param name="increment">The increment</param>
///<param name="length">The size</param>
public void UseNoise(double seed, double increment, int length, Color noiseColor)
{
NoiseColor=noiseColor;
NoiseArray=new double[length+1];
NoiseArray[0]=0.00;
for(int index=1;index<length;index++)
{
NoiseArray[index]=seed;
seed+=increment;
}
}
/// <summary>
/// SetOutputFolderPath
/// </summary>
///<param name="testCases">The test cases</param>
public void SetOutputFolderPath(String strFolderPath)
{
this.strFolderPath=strFolderPath;
if(!this.strFolderPath.EndsWith(@"\"))this.strFolderPath=this.strFolderPath+@"\";
}
/// <summary>
/// ClearFolderPath
/// </summary>
///<param name="testCases">The test cases</param>
public void ClearFolderPath()
{
if(String.IsNullOrEmpty(strFolderPath))throw new InvalidDataException($"{nameof(strFolderPath)} cannot be null");
if(!Directory.Exists(strFolderPath))
{
Directory.CreateDirectory(strFolderPath);
}
else
{
String[] pathFileNames = Directory.GetFiles(strFolderPath);
Console.WriteLine($"Deleting {pathFileNames.Length} files from {strFolderPath}");
foreach(String file in pathFileNames)
{
File.Delete(file);
}
}
}
public void ProcessData(TestCases testCases)
{
for(int index=0;index<testCases.Count;index++)
{
TestCase testCase=testCases[index];
ProcessData(testCase,index);
}
}
/// <summary>
/// ProcessData item
/// </summary>
///<param name="testCases">The test cases</param>
public void ProcessData(TestCase testCase,int index=0)
{
if(null==PenWidthArray)PenWidthArray=new float[]{PenWidth};
if(null==NoiseArray)NoiseArray=new double[]{0.00};
if(testCase.TypeGenerate.Equals(TestCase.GenerateType.Price))
{
for(int penIndex=0;penIndex<PenWidthArray.Length;penIndex++)
{
float penWidth=PenWidthArray[penIndex];
for(int noiseIndex=0;noiseIndex<NoiseArray.Length;noiseIndex++)
{
double noise=NoiseArray[noiseIndex];
String strPathFileName=CreateFileName(strFolderPath,testCase.Symbol,testCase.DayCount,index,penIndex,noiseIndex,testCase.TypeCase,testCase.TypeGenerate,testCase.PurchaseDate);
testCase.PathFileNames.Add(strPathFileName);
ProcessPriceData(testCase,penWidth,noise);
}
}
}
else if(testCase.TypeGenerate.Equals(TestCase.GenerateType.BollingerBand))// Bollinger bands
{
if(null==MovingAverageArray)
{
for(int penIndex=0;penIndex<PenWidthArray.Length;penIndex++)
{
float penWidth=PenWidthArray[penIndex];
for(int noiseIndex=0;noiseIndex<NoiseArray.Length;noiseIndex++)
{
double noise=NoiseArray[noiseIndex];
String strPathFileName=CreateFileName(strFolderPath,testCase.Symbol,testCase.DayCount,index,penIndex,noiseIndex,testCase.TypeCase,testCase.TypeGenerate,testCase.PurchaseDate);
testCase.PathFileNames.Add(strPathFileName);
ProcessBollingerBandData(testCase,penWidth,noise);
}
}
}
else
{
for(int avgIndex=0;avgIndex<MovingAverageArray.Length;avgIndex++)
{
int movingAverage=MovingAverageArray[avgIndex];
for(int penIndex=0;penIndex<PenWidthArray.Length;penIndex++)
{
float penWidth=PenWidthArray[penIndex];
for(int noiseIndex=0;noiseIndex<NoiseArray.Length;noiseIndex++)
{
double noise=NoiseArray[noiseIndex];
String strPathFileName=CreateFileName(strFolderPath,testCase.Symbol,testCase.DayCount,index,penIndex,noiseIndex,testCase.TypeCase,testCase.TypeGenerate,testCase.PurchaseDate);
testCase.PathFileNames.Add(strPathFileName);
ProcessBollingerBandData(testCase,movingAverage,penWidth,noise);
}
}
}
}
} // Bollinger Bands
else if(testCase.TypeGenerate.Equals(TestCase.GenerateType.BollingerBandWithVIX))
{
for (int penIndex = 0; penIndex < PenWidthArray.Length; penIndex++)
{
float penWidth = PenWidthArray[penIndex];
for (int noiseIndex = 0; noiseIndex < NoiseArray.Length; noiseIndex++)
{
double noise = NoiseArray[noiseIndex];
String strPathFileName = CreateFileName(strFolderPath, testCase.Symbol, testCase.DayCount, index, penIndex, noiseIndex, testCase.TypeCase, testCase.TypeGenerate, testCase.PurchaseDate);
testCase.PathFileNames.Add(strPathFileName);
ProcessBollingerBandDataWithVolatility(testCase, penWidth, noise);
}
}
} // Bollinger Bands with ~VIX
else throw new InvalidDataException("Unknown option");
}
private String CreateFileName(String strFolderPath,String symbol,int dayCount,int index,int penIndex,int noiseIndex,TestCase.CaseType caseType,TestCase.GenerateType generateType,DateTime purchaseDate)
{
return String.Format("{0}{1}_{2}_{3}_{4}_{5}_{6}_{7}_{8}d.jpg",strFolderPath,symbol,index,penIndex,noiseIndex,caseType.ToString(),generateType.ToString(),Utility.DateToLong(purchaseDate),dayCount);
}
/// <summary>
/// ProcessBollingerBandData item - Draws Price, K, L and Volatility
/// </summary>
///<param name="testCase">Symbol</param>
private void ProcessBollingerBandDataWithVolatility(TestCase testCase,float penWidth,double noise)
{
String symbolVolatility="^VIX";
DateGenerator dateGenerator=new DateGenerator();
int daysInPeriod=dateGenerator.DaysBetweenActual(testCase.PurchaseDate,testCase.HistDate);
daysInPeriod+=60;
Prices prices=PricingDA.GetPrices(testCase.Symbol,testCase.PurchaseDate,daysInPeriod);
Prices volatilityPrices=PricingDA.GetPrices(symbolVolatility,testCase.PurchaseDate,daysInPeriod);
BollingerBands bollingerBands=BollingerBandGenerator.GenerateBollingerBands(prices); // we want to grab K, L, and Close
bollingerBands=new BollingerBands(bollingerBands.Where(x=>x.Date>=testCase.HistDate).ToList());
float[] k=new float[bollingerBands.Count];
float[] l=new float[bollingerBands.Count];
float[] close=new float[bollingerBands.Count];
// Line up volatility dates with bollinger bands
DateTime minDate = bollingerBands.Min(x=>x.Date);
DateTime maxDate = bollingerBands.Max(x=>x.Date);
volatilityPrices = new Prices(volatilityPrices.Where(x=>x.Date<=maxDate && x.Date>=minDate).OrderBy(x=>x.Date).ToList()); // most historical date in lowest index
float[] v=volatilityPrices.GetPrices();
float minV=Numerics.Min(ref v); // get the minimum volatility value
double minP=bollingerBands.Min(x=>x.Close); // get minimum price
double factor=minP/minV; // determine scaling factor
for(int index=0;index<v.Length;index++)
{
double item = v[index];
item*=factor;
v[index]=(float)Math.Log(item)*1000.00f;
}
// populate the arrays in reverse order so that we have the most historical date in the lowest index
for(int index=bollingerBands.Count-1;index>=0;index--)
{
BollingerBandElement bollingerBandElement=bollingerBands[index];
k[bollingerBands.Count-index-1]=(float)Math.Log(bollingerBandElement.K)*1000.00f; // put the data in log form
l[bollingerBands.Count-index-1]=(float)Math.Log(bollingerBandElement.L)*1000.00f; // put the data in log form
close[bollingerBands.Count-index-1]=(float)Math.Log(bollingerBandElement.Close)*1000.00f; // put the data in log form
}
Numerics.ZeroForNaNOrInfinity(ref k);
Numerics.ZeroForNaNOrInfinity(ref l);
Numerics.ZeroForNaNOrInfinity(ref close);
Numerics.ZeroForNaNOrInfinity(ref v);
float maxY=Math.Max(Math.Max(Numerics.Max(ref l),Math.Max(Numerics.Max(ref close),Numerics.Max(ref k))),Numerics.Max(ref v));
float minY=Math.Min(Math.Min(Numerics.Min(ref l),Math.Min(Numerics.Min(ref close),Numerics.Min(ref k))),Numerics.Min(ref v))-5f;
float maxX=close.Length;
float minX=0.00f;
Pen pen=new Pen(DrawingBrush,penWidth);
Pen redPen=new Pen(DrawingBrushRed,penWidth);
Pen greenPen= new Pen(DrawingBrushGreen,penWidth);
ImageHelper imageHelper=new ImageHelper();
PointMapping pointMapping=new PointMapping(Width,Height,maxX,minX,maxY,minY);
imageHelper.CreateImage(Width,Height,pointMapping);
imageHelper.Fill(FillBrush);
LineSegments lineSegments=new LineSegments();
// draw volatility - red pen
for(int index=0;index<v.Length;index++)
{
if(0==index)continue;
Point p1=new Point(index-1,(int)v[index-1]);
Point p2=new Point(index,(int)v[index]);
lineSegments.Add(p1,p2);
}
imageHelper.DrawPath(redPen,lineSegments);
// draw prices - black pen
lineSegments.Clear();
for(int index=0;index<close.Length && DrawPrice;index++)
{
if(0==index)continue;
Point p1=new Point(index-1,(int)close[index-1]);
Point p2=new Point(index,(int)close[index]);
lineSegments.Add(p1,p2);
}
imageHelper.DrawPath(pen,lineSegments);
// draw k - green pen
lineSegments.Clear();
for(int index=0;index<k.Length;index++)
{
if(0==index)continue;
Point p1=new Point(index-1,(int)k[index-1]);
Point p2=new Point(index,(int)k[index]);
lineSegments.Add(p1,p2);
}
imageHelper.DrawPath(greenPen,lineSegments);
// draw l - green pen
lineSegments.Clear();
for(int index=0;index<l.Length;index++)
{
if(0==index)continue;
Point p1=new Point(index-1,(int)l[index-1]);
Point p2=new Point(index,(int)l[index]);
lineSegments.Add(p1,p2);
}
imageHelper.DrawPath(greenPen,lineSegments);
if(0.00!=noise)imageHelper.AddNoise(NoiseColor,noise);
if(testCase.TypeOutput.Equals(TestCase.OutputType.OutputFile))
{
MDTrace.WriteLine(LogLevel.DEBUG,$"Writing {testCase.LastPathFileName}");
if(File.Exists(testCase.LastPathFileName))File.Delete(testCase.LastPathFileName);
if(UseGrayScale)imageHelper.SaveGrayScaleJPG(testCase.LastPathFileName);
else imageHelper.Save(testCase.LastPathFileName);
}
else
{
testCase.Streams.Add(imageHelper.ToStream());
}
}
/// <summary>
/// Generate Bollinger Band Data
/// </summary>
/// <param name="testCase"></param>
/// <param name="movingAverageDays"></param>
/// <param name="penWidth"></param>
/// <param name="noise"></param>
private void ProcessBollingerBandData(TestCase testCase,int movingAverageDays,float penWidth,double noise)
{
int bufferDays=60;
DateGenerator dateGenerator=new DateGenerator();
int daysInPeriod=dateGenerator.DaysBetweenActual(testCase.PurchaseDate,testCase.HistDate);
if(movingAverageDays>bufferDays)daysInPeriod=movingAverageDays*2;
else daysInPeriod+=60;
Prices prices=PricingDA.GetPrices(testCase.Symbol,testCase.PurchaseDate,daysInPeriod);
BollingerBands bollingerBands=BollingerBandGenerator.GenerateBollingerBands(prices); // we want to grab K, L, and Close
bollingerBands=new BollingerBands(bollingerBands.Where(x=>x.Date>=testCase.HistDate).ToList());
float[] k=new float[bollingerBands.Count];
float[] l=new float[bollingerBands.Count];
float[] close=new float[bollingerBands.Count];
DMAPrices dmaPrices=MovingAverageGenerator.GenerateMovingAverage(prices, movingAverageDays);
DMAPricesByDate dmaPricesByDate=dmaPrices.GetDMAPricesByDate();
// populate the arrays in reverse order so that we have the most historical date in the lowest index
for(int index=bollingerBands.Count-1;index>=0;index--)
{
BollingerBandElement bollingerBandElement=bollingerBands[index];
if(!dmaPricesByDate.ContainsKey(bollingerBandElement.Date))continue;
k[bollingerBands.Count-index-1]=(float)Math.Log(bollingerBandElement.K)*1000.00f;
l[bollingerBands.Count-index-1]=(float)Math.Log(bollingerBandElement.L)*1000.00f;
double movingAverageClose=dmaPricesByDate[bollingerBandElement.Date].AVGPrice;
close[bollingerBands.Count-index-1]=(float)Math.Log(movingAverageClose)*1000.00f;
}
Numerics.ZeroForNaNOrInfinity(ref k);
Numerics.ZeroForNaNOrInfinity(ref l);
Numerics.ZeroForNaNOrInfinity(ref close);
float maxY=Math.Max(Numerics.Max(ref l),Math.Max(Numerics.Max(ref close),Numerics.Max(ref k)));
float minY=Math.Min(Numerics.Min(ref l),Math.Min(Numerics.Min(ref close),Numerics.Min(ref k)))-5f;
float maxX=close.Length;
float minX=0.00f;
Pen pen=new Pen(DrawingBrush,penWidth);
ImageHelper imageHelper=new ImageHelper();
PointMapping pointMapping=new PointMapping(Width,Height,maxX,minX,maxY,minY);
imageHelper.CreateImage(Width,Height,pointMapping);
imageHelper.Fill(FillBrush);
LineSegments lineSegments=new LineSegments();
for(int index=0;index<close.Length && DrawPrice;index++)
{
if(0==index)continue;
Point p1=new Point(index-1,(int)close[index-1]);
Point p2=new Point(index,(int)close[index]);
lineSegments.Add(p1,p2);
}
imageHelper.DrawPath(pen,lineSegments);
lineSegments.Clear();
for(int index=0;index<k.Length;index++)
{
if(0==index)continue;
Point p1=new Point(index-1,(int)k[index-1]);
Point p2=new Point(index,(int)k[index]);
lineSegments.Add(p1,p2);
}
imageHelper.DrawPath(pen,lineSegments);
lineSegments.Clear();
for(int index=0;index<l.Length;index++)
{
if(0==index)continue;
Point p1=new Point(index-1,(int)l[index-1]);
Point p2=new Point(index,(int)l[index]);
lineSegments.Add(p1,p2);
}
imageHelper.DrawPath(pen,lineSegments);
if(0.00!=noise)imageHelper.AddNoise(NoiseColor,noise);
if(testCase.TypeOutput.Equals(TestCase.OutputType.OutputFile))
{
if(File.Exists(testCase.LastPathFileName))File.Delete(testCase.LastPathFileName);
if(UseGrayScale)imageHelper.SaveGrayScaleJPG(testCase.LastPathFileName);
else imageHelper.SaveBlackAndWhiteJPG(testCase.LastPathFileName);
}
else
{
testCase.Streams.Add(imageHelper.SaveBlackAndWhiteJPG());
}
}
/// <summary>
/// ProcessBollingerBandData item
/// </summary>
///<param name="testCase">Symbol</param>
private void ProcessBollingerBandData(TestCase testCase,float penWidth,double noise)
{
DateGenerator dateGenerator=new DateGenerator();
int daysInPeriod=dateGenerator.DaysBetweenActual(testCase.PurchaseDate,testCase.HistDate);
daysInPeriod+=60;
Prices prices=PricingDA.GetPrices(testCase.Symbol,testCase.PurchaseDate,daysInPeriod);
BollingerBands bollingerBands=BollingerBandGenerator.GenerateBollingerBands(prices); // we want to grab K, L, and Close
bollingerBands=new BollingerBands(bollingerBands.Where(x=>x.Date>=testCase.HistDate).ToList());
float[] k=new float[bollingerBands.Count];
float[] l=new float[bollingerBands.Count];
float[] close=new float[bollingerBands.Count];
// populate the arrays in reverse order so that we have the most historical date in the lowest index
for(int index=bollingerBands.Count-1;index>=0;index--)
{
BollingerBandElement bollingerBandElement=bollingerBands[index];
k[bollingerBands.Count-index-1]=(float)Math.Log(bollingerBandElement.K)*1000.00f;
l[bollingerBands.Count-index-1]=(float)Math.Log(bollingerBandElement.L)*1000.00f;
close[bollingerBands.Count-index-1]=(float)Math.Log(bollingerBandElement.Close)*1000.00f;
}
Numerics.ZeroForNaNOrInfinity(ref k);
Numerics.ZeroForNaNOrInfinity(ref l);
Numerics.ZeroForNaNOrInfinity(ref close);
float maxY=Math.Max(Numerics.Max(ref l),Math.Max(Numerics.Max(ref close),Numerics.Max(ref k)));
float minY=Math.Min(Numerics.Min(ref l),Math.Min(Numerics.Min(ref close),Numerics.Min(ref k)))-5f;
float maxX=close.Length;
float minX=0.00f;
Pen pen=new Pen(DrawingBrush,penWidth);
ImageHelper imageHelper=new ImageHelper();
PointMapping pointMapping=new PointMapping(Width,Height,maxX,minX,maxY,minY);
imageHelper.CreateImage(Width,Height,pointMapping);
imageHelper.Fill(FillBrush);
LineSegments lineSegments=new LineSegments();
for(int index=0;index<close.Length && DrawPrice;index++)
{
if(0==index)continue;
Point p1=new Point(index-1,(int)close[index-1]);
Point p2=new Point(index,(int)close[index]);
lineSegments.Add(p1,p2);
}
imageHelper.DrawPath(pen,lineSegments);
lineSegments.Clear();
for(int index=0;index<k.Length;index++)
{
if(0==index)continue;
Point p1=new Point(index-1,(int)k[index-1]);
Point p2=new Point(index,(int)k[index]);
lineSegments.Add(p1,p2);
}
imageHelper.DrawPath(pen,lineSegments);
lineSegments.Clear();
for(int index=0;index<l.Length;index++)
{
if(0==index)continue;
Point p1=new Point(index-1,(int)l[index-1]);
Point p2=new Point(index,(int)l[index]);
lineSegments.Add(p1,p2);
}
imageHelper.DrawPath(pen,lineSegments);
if(0.00!=noise)imageHelper.AddNoise(NoiseColor,noise);
if(testCase.TypeOutput.Equals(TestCase.OutputType.OutputFile))
{
MDTrace.WriteLine(LogLevel.DEBUG,$"Writing {testCase.LastPathFileName}");
if(File.Exists(testCase.LastPathFileName))File.Delete(testCase.LastPathFileName);
if(UseGrayScale)imageHelper.SaveGrayScaleJPG(testCase.LastPathFileName);
else imageHelper.SaveBlackAndWhiteJPG(testCase.LastPathFileName);
}
else
{
testCase.Streams.Add(imageHelper.SaveBlackAndWhiteJPG());
}
}
/// <summary>
/// ProcessPriceData item
/// </summary>
///<param name="testCase">TestCase</param>
private void ProcessPriceData(TestCase testCase,float penWidth,double noise)
{
Prices prices=PricingDA.GetPrices(testCase.Symbol,testCase.PurchaseDate,testCase.HistDate);
prices.Reverse(); // get the most historical date into the lowest index
float[] priceArray=prices.GetPrices();
for(int index=0;index<priceArray.Length;index++)
{
priceArray[index]=(float)Math.Log((double)priceArray[index])*1000.00f;
}
Numerics.ZeroForNaNOrInfinity(ref priceArray);
float maxY=Numerics.Max(ref priceArray);
float minY=Numerics.Min(ref priceArray)-5f;
float maxX=priceArray.Length;
float minX=0.00f;
Pen pen=new Pen(DrawingBrush,penWidth);
ImageHelper imageHelper=new ImageHelper();
PointMapping pointMapping=new PointMapping(Width,Height,maxX,minX,maxY,minY);
imageHelper.CreateImage(Width,Height,pointMapping);
imageHelper.Fill(FillBrush);
LineSegments lineSegments=new LineSegments();
for(int index=0;index<priceArray.Length;index++)
{
if(0==index)continue;
Point p1=new Point(index-1,(int)priceArray[index-1]);
Point p2=new Point(index,(int)priceArray[index]);
lineSegments.Add(p1,p2);
}
imageHelper.DrawPath(pen,lineSegments);
if(0.00!=noise)imageHelper.AddNoise(NoiseColor,noise);
if(testCase.TypeOutput.Equals(TestCase.OutputType.OutputFile))
{
MDTrace.WriteLine(LogLevel.DEBUG,$"Writing {testCase.LastPathFileName}");
if(File.Exists(testCase.LastPathFileName))File.Delete(testCase.LastPathFileName);
if(UseGrayScale)imageHelper.SaveGrayScaleJPG(testCase.LastPathFileName);
else imageHelper.SaveBlackAndWhiteJPG(testCase.LastPathFileName);
}
else
{
testCase.Streams.Add(imageHelper.SaveBlackAndWhiteJPG());
}
}
}
}