public void LoadMatrixFromTxtFileReadsPredictionErrorCorrectly3X4Block()
{
SetTestBmpGz2DlzDecoderFacade();
gz2DlzDecoderFacade.InputFilePath = _one3X4BlockBmpMatFileName;
_decoder = new Gz2DlzDecoder(gz2DlzDecoderFacade);
int[,] expectedValues = new int[, ]
{
{ 64, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ -32, -96, 0, 0, 0, 192, -96, 96, -96, -96 },
{ 64, -192, 0, 0, 0, 96, 96, -192, 255, -159 },
{ -64, -64, 0, 0, 0, 255, -159, 159, -159, -96 },
{ 127, -255, 0, 0, 0, 96, 96, -96, 96, -96 },
{ 64, -96, 159, -63, 63, -255, 0, 0, 0, 64 },
{ -64, 128, -96, 159, -159, 0, 0, 0, 0, 64 },
{ 64, -128, 128, -96, 96, 0, 0, 0, 0, 64 },
{ -64, 191, -159, 159, -159, 0, 0, 0, 0, 64 },
{ -128, 96, 96, -128, 191, -191, 191, -191, 191, -63 }
};
_decoder.LoadMatrixFromTxtFile();
var predictionError = gz2DlzDecoderFacade.AbstractPredictor.PredictionError;
var height = predictionError.GetLength(0);
var width = predictionError.GetLength(1);
Assert.AreEqual(10, height);
Assert.AreEqual(10, width);
AssertEachValue(expectedValues, predictionError);
}
public void LoadMatrixFromTxtFileReadsMatchFlagCorrectlyFor3X4Block()
{
bool[,] expected =
{
{ false, false, false, false, false, false, false, false, false, false },
{ false, false, false, false, false, false, false, false, false, false },
{ false, false, false, false, false, false, false, false, false, false },
{ false, false, false, false, false, false, false, false, false, false },
{ false, false, false, false, false, false, false, false, false, false },
{ false, false, false, false, false, false, false, false, false, false },
{ false, false, false, false, false, true, false, false, false, false },
{ false, false, false, false, false, false, false, false, false, false },
{ false, false, false, false, false, false, false, false, false, false },
{ false, false, false, false, false, false, false, false, false, false }
};
SetTestBmpGz2DlzDecoderFacade();
gz2DlzDecoderFacade.InputFilePath = _one3X4BlockBmpMatFileName;
_decoder = new Gz2DlzDecoder(gz2DlzDecoderFacade);
_decoder.LoadMatrixFromTxtFile();
var matchFlag = _decoder.IsMatchFound;
Assert.AreEqual(10, matchFlag.GetLength(0));
Assert.AreEqual(10, matchFlag.GetLength(1));
AssertEachValue(expected, matchFlag);
}
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 LoadMatrixFromTxtFileReadsMatchDimensionsCorrectly3X4Block()
{
/*x y x y ..
* 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 0 0 0 0 0 0 0 0 0 0 4 3 0 0 0 0 0 0 0 0
* 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
*/
SetTestBmpGz2DlzDecoderFacade();
gz2DlzDecoderFacade.InputFilePath = _one3X4BlockBmpMatFileName;
_decoder = new Gz2DlzDecoder(gz2DlzDecoderFacade);
_decoder.LoadMatrixFromTxtFile();
var matchDimensions = _decoder.MatchDimension;
var height = matchDimensions.GetLength(0);
var width = matchDimensions.GetLength(1);
Assert.AreEqual(10, height);
Assert.AreEqual(10, width);
Assert.AreEqual(4, matchDimensions[6, 5].Width);
Assert.AreEqual(3, matchDimensions[6, 5].Height);
for (int y = 0; y < 6; y++)
{
for (int x = 0; x < 5; x++)
{
Assert.AreEqual(0, matchDimensions[y, x].Width);
Assert.AreEqual(0, matchDimensions[y, x].Height);
}
}
for (int y = 6; y < height; y++)
{
for (int x = 6; x < width; x++)
{
Assert.AreEqual(0, matchDimensions[y, x].Width);
Assert.AreEqual(0, matchDimensions[y, x].Height);
}
}
}
public void LoadMatrixFromTxtFileReadsMatchFlagCorrectly()
{
SetTestBmpGz2DlzDecoderFacade();
_decoder = new Gz2DlzDecoder(gz2DlzDecoderFacade);
_decoder.LoadMatrixFromTxtFile();
var matchFlag = _decoder.IsMatchFound;
Assert.AreEqual(5, matchFlag.GetLength(0));
Assert.AreEqual(6, matchFlag.GetLength(1));
for (int y = 0; y < matchFlag.GetLength(0); y++)
{
for (int x = 0; x < matchFlag.GetLength(1); x++)
{
Assert.AreEqual(false, matchFlag[y, x]);
}
}
}
public void LoadMatrixFromTxtFileReadsResidualCorrectly()
{
SetTestBmpGz2DlzDecoderFacade();
_decoder = new Gz2DlzDecoder(gz2DlzDecoderFacade);
_decoder.LoadMatrixFromTxtFile();
var residual = _decoder.Residual;
var height = residual.GetLength(0);
var width = residual.GetLength(1);
Assert.AreEqual(5, height);
Assert.AreEqual(6, width);
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
Assert.AreEqual(0, residual[y, x]);
}
}
}
public void LoadMatrixFromTxtFileReadsMatchDimensionsCorrectly()
{
SetTestBmpGz2DlzDecoderFacade();
_decoder = new Gz2DlzDecoder(gz2DlzDecoderFacade);
_decoder.LoadMatrixFromTxtFile();
var matchDimensions = _decoder.MatchDimension;
var height = matchDimensions.GetLength(0);
var width = matchDimensions.GetLength(1);
Assert.AreEqual(5, height);
Assert.AreEqual(6, width);
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
Assert.AreEqual(0, matchDimensions[y, x].Width);
Assert.AreEqual(0, matchDimensions[y, x].Height);
}
}
}
public void LoadMatrixFromTxtFileReadsPredictionErrorCorrectly()
{
SetTestBmpGz2DlzDecoderFacade();
_decoder = new Gz2DlzDecoder(gz2DlzDecoderFacade);
int[,] expectedValues = new int[, ]
{
{ -128, 255, -255, 255, -255, 255 },
{ -128, 255, -255, 255, -255, 0 },
{ 127, -255, 0, 0, 255, 0 },
{ -128, 255, -255, 255, -255, 255 },
{ 127, -255, 255, 0, -255, 0 }
};
_decoder.LoadMatrixFromTxtFile();
var predictionError = gz2DlzDecoderFacade.AbstractPredictor.PredictionError;
var height = predictionError.GetLength(0);
var width = predictionError.GetLength(1);
Assert.AreEqual(5, height);
Assert.AreEqual(6, width);
AssertEachValue(expectedValues, predictionError);
}