public void EncodeAndDecodeWithAPredictorAndBitOperationsPeppersBmpResultsTheSamePixels()
{
var aBasedPredictor = new ABasedPredictor();
var paq6V2Archiver = new Paq6V2Archiver();
_gz2DlzEncoderFacade.InputFilePath = _peppers512;
_gz2DlzEncoderFacade.AbstractPredictor = aBasedPredictor;
_gz2DlzEncoderFacade.ImageReader = _bmpImageReader;
_gz2DlzEncoderFacade.Archiver = paq6V2Archiver;
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
var inputFilePath = _peppers512 + G2_2D_LZ.Helpers.Constants.Folder + Constants.Paq6Extension;
gz2DlzDecoderFacade = new Gz2DlzDecoderFacade();
gz2DlzDecoderFacade.InputFilePath = inputFilePath;
gz2DlzDecoderFacade.AbstractPredictor = aBasedPredictor;
gz2DlzDecoderFacade.Archiver = paq6V2Archiver;
_decoder = new Gz2DlzDecoder(gz2DlzDecoderFacade);
_encoder.Encode();
_decoder.Decode();
var workImage = _decoder.WorkImage;
CompareValueWithPixelFromBmp(_peppers512, workImage);
}
public void EncodeAndDecodeWithCalicPredictorCustomTxtLena256AnCreatesAFileIndenticalWithTheOriginal()
{
IImageReader txtImageReader = new TxtAsImageReader();
_gz2DlzEncoderFacade.InputFilePath = _lenna256anTxtFileName;
_gz2DlzEncoderFacade.AbstractPredictor = new ABasedPredictor();
_gz2DlzEncoderFacade.ImageReader = txtImageReader;
_gz2DlzEncoderFacade.Archiver = new Paq6V2Archiver();
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
var inputFilePath = $"{_lenna256anTxtFileName}.mat";
gz2DlzDecoderFacade = new Gz2DlzDecoderFacade();
gz2DlzDecoderFacade.InputFilePath = inputFilePath;
gz2DlzDecoderFacade.AbstractPredictor = new ABasedPredictor();
gz2DlzDecoderFacade.Archiver = new Paq6V2Archiver();
_decoder = new Gz2DlzDecoder(gz2DlzDecoderFacade);
_encoder.Encode();
_encoder.WriteMatrixToFileAsText();
_decoder.LoadMatrixFromTxtFile();
_decoder.Decode();
_decoder.SaveOriginalImageAsTxtFile();
var filename = $"{_lenna256anTxtFileName}.mat.decoded.txt";
var originalFile = GetContentWithoutNewLines(_lenna256anTxtFileName).Replace("256 256 ", "");
var decodedFile = GetContentWithoutNewLines(filename);
Assert.AreEqual(originalFile.Length, decodedFile.Length);
Assert.IsTrue(string.Equals(originalFile, decodedFile));
}
public void LocateTheBestAproximateMatchForGivenRootPixelGivesTheExpectedBestMatch()
{
_gz2DlzEncoderFacade.InputFilePath = One3X4MatchBlockBmpPath;
_gz2DlzEncoderFacade.AbstractPredictor = new ABasedPredictor();
_gz2DlzEncoderFacade.ImageReader = _bmpReader;
_gz2DlzEncoderFacade.Archiver = new Paq6V2Archiver();
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
var originalImage = _encoder.WorkImage;
var width = originalImage.GetLength(0);
for (int i = 0; i < width; i++)
{
_encoder.IsPixelEncoded[0, i] = true;
_encoder.IsPixelEncoded[1, i] = true;
_encoder.IsPixelEncoded[2, i] = true;
_encoder.IsPixelEncoded[3, i] = true;
_encoder.IsPixelEncoded[4, i] = true;
}
for (int i = 0; i < 5; i++)
{
_encoder.IsPixelEncoded[0, i] = true;
}
var encoderPosition = new PixelLocation(5, 5);
var rootPosition = new PixelLocation(1, 1);
BestMatch bestMatch = _encoder.LocateTheBestAproximateMatchForGivenRootPixel(encoderPosition, rootPosition);
Assert.AreEqual(4, bestMatch.Height);
Assert.AreEqual(4, bestMatch.Width);
Assert.AreEqual(16, bestMatch.Size);
}
public void EncodeFindsTheExpectedBlockMatchForVerticalMirrorTransform()
{
_gz2DlzEncoderFacade.InputFilePath = VerticalMirrorBmpPath;
_gz2DlzEncoderFacade.AbstractPredictor = new ABasedPredictor();
_gz2DlzEncoderFacade.ImageReader = _bmpReader;
_gz2DlzEncoderFacade.Archiver = new Paq6V2Archiver();
_gz2DlzEncoderFacade.GeometricTransformation = (int)G2_2D_LZ.Helpers.Constants.GeometricTransformation.VerticalMirror;
G2_2D_LZ.Helpers.Constants.MinMatchSize = 5;
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
_encoder.WorkImage = new byte[10, 12]
{ //0 1 2 3 4 5 6 7 8 9 10 11
{ 50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, //0
{ 0, 200, 0, 0, 0, 50, 100, 100, 0, 0, 50, 50 }, //1
{ 0, 250, 250, 250, 0, 0, 0, 0, 0, 0, 0, 0 }, //2
{ 0, 250, 250, 250, 0, 0, 0, 0, 0, 0, 0, 0 }, //3
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, //4
{ 0, 0, 0, 0, 0, 0, 0, 0, 150, 0, 0, 0 }, //5
{ 0, 0, 0, 0, 0, 250, 250, 250, 150, 0, 0, 0 }, //6
{ 0, 0, 0, 0, 0, 250, 250, 250, 0, 0, 0, 0 }, //7
{ 0, 0, 0, 0, 0, 150, 150, 150, 0, 0, 0, 0 }, //8
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } //9
};
_encoder.Encode();
Assert.IsNotNull(_encoder.MatchLocation[6, 5]);
Assert.AreEqual(1, _encoder.MatchLocation[6, 5].X);
Assert.AreEqual(2, _encoder.MatchLocation[6, 5].Y);
}
public void ImageIsLoadedIntoMemory()
{
SetGz2DLzEncoderFacadeWithTestBmpABasedPredictorAndBmpReader();
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
byte[,] originalImage = _encoder.WorkImage;
Assert.AreEqual(5, originalImage.GetLength(0));
Assert.AreEqual(6, originalImage.GetLength(1));
AssertEachValue(Constants.TestBmp, originalImage);
}
public void EncodeDoesntFindsTheExpectedBlockMatchIfThereAre2BlockAtTheSameOriginForMinMatchSize17()
{
_gz2DlzEncoderFacade.InputFilePath = TwoPossibleMatchBlocksBmpPath;
_gz2DlzEncoderFacade.AbstractPredictor = new ABasedPredictor();
_gz2DlzEncoderFacade.ImageReader = _bmpReader;
_gz2DlzEncoderFacade.Archiver = new Paq6V2Archiver();
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
_encoder.Encode();
Assert.IsNull(_encoder.MatchLocation[1, 0]);
}
public void EncodeDoesntFindTheExpectedBlockMatchForMinMatchSize17()
{
_gz2DlzEncoderFacade.InputFilePath = One3X4MatchBlockBmpPath;
_gz2DlzEncoderFacade.AbstractPredictor = new ABasedPredictor();
_gz2DlzEncoderFacade.ImageReader = _bmpReader;
_gz2DlzEncoderFacade.Archiver = new Paq6V2Archiver();
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
_encoder.Encode();
Assert.IsNull(_encoder.MatchLocation[6, 5]);
}
private void button1_Click(object sender, System.EventArgs e)
{
IGz2DlzEncoderFacade _gz2DlzEncoderFacade = new Gz2DlzEncoderFacade();
_gz2DlzEncoderFacade.InputFilePath = inputFile;
_gz2DlzEncoderFacade.AbstractPredictor = new ABasedPredictor();
_gz2DlzEncoderFacade.ImageReader = new BmpImageReader();
_gz2DlzEncoderFacade.Archiver = new Paq6V2Archiver();
var _encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
_encoder.Encode();
}
public void EncodesTheFirstRowIsMarkedAsEncoded()
{
SetGz2DLzEncoderFacadeWithTestBmpABasedPredictorAndBmpReader();
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
_encoder.Encode();
var isEncodedPixel = _encoder.IsPixelEncoded;
int y = 0;
for (int x = 0; x < isEncodedPixel.GetLength(1); x++)
{
Assert.IsTrue(isEncodedPixel[y, x]);
}
}
public void EncodeEncodesAllPixelsForAnImageWithAMatchingBlock()
{
SetGz2DLzEncoderFacadeWithTestBmpABasedPredictorAndBmpReader();
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
_encoder.Encode();
var isEncodedPixel = _encoder.IsPixelEncoded;
for (int y = 0; y < isEncodedPixel.GetLength(0); y++)
{
for (int x = 0; x < isEncodedPixel.GetLength(1); x++)
{
Assert.IsTrue(isEncodedPixel[y, x]);
}
}
}
public void EncodesHasNoMatchDimensions()
{
SetGz2DLzEncoderFacadeWithTestBmpABasedPredictorAndBmpReader();
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
_encoder.Encode();
var matchDimensions = _encoder.MatchDimension;
for (int y = 0; y < matchDimensions.GetLength(0); y++)
{
for (int x = 0; x < matchDimensions.GetLength(1); x++)
{
Assert.AreEqual(null, matchDimensions[y, x]);
}
}
}
public void EncodesHasNoResidualValues()
{
SetGz2DLzEncoderFacadeWithTestBmpABasedPredictorAndBmpReader();
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
_encoder.Encode();
var residual = _encoder.Residual;
for (int y = 0; y < residual.GetLength(0); y++)
{
for (int x = 0; x < residual.GetLength(1); x++)
{
Assert.AreEqual(0, residual[y, x]);
}
}
}
public void EncodesHasNoMatchesFound()
{
SetGz2DLzEncoderFacadeWithTestBmpABasedPredictorAndBmpReader();
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
_encoder.Encode();
var matchFlag = _encoder.IsMatchFound;
for (int y = 0; y < matchFlag.GetLength(0); y++)
{
for (int x = 0; x < matchFlag.GetLength(1); x++)
{
Assert.IsFalse(matchFlag[y, x]);
}
}
}
private void LoadFolderBtn_Click(object sender, System.EventArgs e)
{
var dialogResult = folderBrowserDialog1.ShowDialog();
if (dialogResult == DialogResult.OK)
{
var folerPath = folderBrowserDialog1.SelectedPath;
var allFilesInFolder = Directory.GetFiles(folerPath, "*.bmp");
string content = $@"Paramters:
SearchHeight : {G2_2D_LZ.Helpers.Constants.SearchHeight}
SearchWidth : {G2_2D_LZ.Helpers.Constants.SearchWidth}
Threshold : {G2_2D_LZ.Helpers.Constants.Threshold}
MinMatchSize : {G2_2D_LZ.Helpers.Constants.MinMatchSize}
MaxMse : {G2_2D_LZ.Helpers.Constants.MaxMse}
NoMatchBlockWidth : {G2_2D_LZ.Helpers.Constants.NoMatchBlockWidth}
NoMatchBlockHeight : {G2_2D_LZ.Helpers.Constants.NoMatchBlockHeight}
" + Environment.NewLine;
content += "name | uncompressed size | compressed size | compression ratio | bits per pixel" + Environment.NewLine;
foreach (var filePath in allFilesInFolder)
{
string name = Path.GetFileName(filePath);
var uncompressedSize = new FileInfo(filePath).Length;
IGz2DlzEncoderFacade _gz2DlzEncoderFacade = new Gz2DlzEncoderFacade();
_gz2DlzEncoderFacade.InputFilePath = filePath;
_gz2DlzEncoderFacade.AbstractPredictor = new ABasedPredictor();
_gz2DlzEncoderFacade.ImageReader = new BmpImageReader();
_gz2DlzEncoderFacade.Archiver = new Paq6V2Archiver();
var _encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
_encoder.Encode();
var archivePath = _encoder.ArchivePath;
var compressedSize = new FileInfo(archivePath).Length;
content += $"{name} | {uncompressedSize} | {compressedSize} | " +
$" {uncompressedSize/(double)compressedSize} " +
$" | {8.0*(compressedSize / (double)(512 * 512))} " +
$" {Environment.NewLine}";
}
using (var streamWriter = new StreamWriter(folerPath + "\\results.txt"))
{
streamWriter.Write(content);
}
}
}
public void EncodeAndDecodeWithCalicPredictorLenaBmpResultsTheSamePixels()
{
_gz2DlzEncoderFacade.InputFilePath = _lenna256anBmpPath;
_gz2DlzEncoderFacade.AbstractPredictor = new CalicPredictor();
_gz2DlzEncoderFacade.ImageReader = _bmpImageReader;
_gz2DlzEncoderFacade.Archiver = new Paq6V2Archiver();
_encoder = new Gz2DlzEncoder(_gz2DlzEncoderFacade);
var inputFilePath = _lenna256anBmpPath + G2_2D_LZ.Helpers.Constants.Folder + Constants.Paq6Extension;
gz2DlzDecoderFacade = new Gz2DlzDecoderFacade();
gz2DlzDecoderFacade.InputFilePath = inputFilePath;
gz2DlzDecoderFacade.AbstractPredictor = new CalicPredictor();
gz2DlzDecoderFacade.Archiver = new Paq6V2Archiver();
_decoder = new Gz2DlzDecoder(gz2DlzDecoderFacade);
_encoder.Encode();
_decoder.Decode();
var workImage = _decoder.WorkImage;
CompareValueWithPixelFromBmp(_lenna256anBmpPath, workImage);
}
