public void ApplySobelFilterFromFileTest()
{
// preperation
FileStream inputFile = new FileStream("..\\..\\..\\Resources\\OriginalCat.bmp", FileMode.Open, FileAccess.Read);
FileStream expectedOutputFile = new FileStream("..\\..\\..\\Resources\\SobelFilterCat.bmp", FileMode.Open, FileAccess.Read);
byte[] temp = new byte[54];
inputFile.Read(temp, 0, 54);
BMPFileHeader bmpInfo = new BMPFileHeader(temp);
SobelFilter image = new SobelFilter(bmpInfo, inputFile);
// checking SobelFilter
image.ApplySobelFilter(SobelFilter.FilterType.SobelFilter);
byte[] outputFile = new byte[bmpInfo.FileSize];
image.WriteImage(outputFile);
for (uint i = 0; i < bmpInfo.FileSize; i++)
{
Assert.IsTrue(outputFile[i] == (byte)expectedOutputFile.ReadByte());
}
inputFile.Close();
expectedOutputFile.Close();
}
public void ReadAndWriteImageFromFileTest()
{
// preperation
FileStream inputAndOutFile = new FileStream("..\\..\\..\\Resources\\OriginalCat.bmp", FileMode.Open, FileAccess.Read);
// checking that Read and Write methods work correctly
byte[] temp = new byte[54];
inputAndOutFile.Read(temp, 0, 54);
BMPFileHeader fileInfo = new BMPFileHeader(temp);
Image image = new Image(fileInfo, inputAndOutFile);
byte[] data = new byte[fileInfo.FileSize];
image.WriteImage(data);
inputAndOutFile.Seek(0, SeekOrigin.Begin);
for (int i = 0; i < fileInfo.FileSize; i++)
{
Assert.IsTrue(data[i] == inputAndOutFile.ReadByte());
}
inputAndOutFile.Close();
}
public void AssignmentTest()
{
// preparation
FileStream inputFile = new FileStream("..\\..\\..\\Resources\\OriginalCat.bmp", FileMode.Open, FileAccess.Read);
byte[] temp = new byte[54];
inputFile.Read(temp, 0, 54);
BMPFileHeader file = new BMPFileHeader(temp);
string expectedFileType = "BM";
uint expectedFileSize = 4500054;
ushort expectedReserved1 = 0;
ushort expectedReserved2 = 0;
uint expectedImageOffset = 54;
uint expectedHeaderSize = 40;
uint expectedWidth = 1000;
uint expectedHeight = 1500;
ushort expectedPlanes = 1;
ushort expectedBitPerPixel = 24;
uint expectedCompression = 0;
uint expectedSizeImage = 4500000;
uint expectedXPelsPerMeter = 2835;
uint expectedYPelsPerMeter = 2835;
uint expectedColorsUsed = 0;
uint expectedColorsImportant = 0;
byte[] expectedByteReprezentation = new byte[expectedImageOffset];
Array.Copy(temp, expectedByteReprezentation, expectedImageOffset);
// checking for properties' value
Assert.AreEqual(file.FileType, expectedFileType);
Assert.AreEqual(file.FileSize, expectedFileSize);
Assert.AreEqual(file.Reserved1, expectedReserved1);
Assert.AreEqual(file.Reserved2, expectedReserved2);
Assert.AreEqual(file.ImageOffset, expectedImageOffset);
Assert.AreEqual(file.HeaderSize, expectedHeaderSize);
Assert.AreEqual(file.Width, expectedWidth);
Assert.AreEqual(file.Height, expectedHeight);
Assert.AreEqual(file.Planes, expectedPlanes);
Assert.AreEqual(file.BitPerPixel, expectedBitPerPixel);
Assert.AreEqual(file.Compression, expectedCompression);
Assert.AreEqual(file.SizeImage, expectedSizeImage);
Assert.AreEqual(file.XPelsPerMeter, expectedXPelsPerMeter);
Assert.AreEqual(file.YPelsPerMeter, expectedYPelsPerMeter);;
Assert.AreEqual(file.ColorsUsed, expectedColorsUsed);
Assert.AreEqual(file.ColorsImportant, expectedColorsImportant);
for (int i = 0; i < expectedImageOffset; i++)
{
Assert.AreEqual(expectedByteReprezentation[i], file.ByteRepresentation[i]);
}
}
private static bool ReadFileHeader(BinaryReader aReader, ref BMPFileHeader aFileHeader)
{
aFileHeader.magic = aReader.ReadUInt16();
if (aFileHeader.magic != MAGIC)
{
return(false);
}
aFileHeader.filesize = aReader.ReadUInt32();
aFileHeader.reserved = aReader.ReadUInt32();
aFileHeader.offset = aReader.ReadUInt32();
return(true);
}
public BMP(string path)
{
PATH=path;
if(File.Exists(PATH))
{
BinaryReader br=new BinaryReader(File.OpenRead(PATH));
// Read BMP File Header
BitmapFileHeader=new BMPFileHeader();
ReadBMPFileHeader(br);
br.Close();
}
}
public BMP(string path)
{
PATH = path;
if (File.Exists(PATH))
{
BinaryReader br = new BinaryReader(File.OpenRead(PATH));
// Read BMP File Header
BitmapFileHeader = new BMPFileHeader();
ReadBMPFileHeader(br);
br.Close();
}
}
/// <summary>
/// Loads BMP header from stream.
/// </summary>
/// <param name="stream">Fully formatted BMP image.</param>
/// <returns>Length of header.</returns>
protected override long Load(Stream stream)
{
base.Load(stream);
byte[] temp = stream.ReadBytes(HeaderSize);
if (!CheckIdentifier(temp))
{
throw new FormatException("Stream is not a BMP Image");
}
FileHeader = new BMPFileHeader(temp);
DIBHeader = new BMPDIBHeader(temp);
Width = DIBHeader.Width;
Height = DIBHeader.Height;
return(HeaderSize);
}
/// <summary>
/// Loads BMP header from stream.
/// </summary>
/// <param name="stream">Fully formatted BMP image.</param>
/// <returns>Length of header.</returns>
protected override long Load(Stream stream)
{
base.Load(stream);
byte[] temp = stream.ReadBytes(HeaderSize);
if (!CheckIdentifier(temp))
throw new FormatException("Stream is not a BMP Image");
FileHeader = new BMPFileHeader(temp);
DIBHeader = new BMPDIBHeader(temp);
Width = DIBHeader.Width;
Height = DIBHeader.Height;
return HeaderSize;
}
public NegativeFilter(BMPFileHeader fileInfo, byte[] inputFile) : base(fileInfo, inputFile)
{
}
public NegativeFilter(BMPFileHeader fileInfo, FileStream inputFile) : base(fileInfo, inputFile)
{
}
public SobelFilter(BMPFileHeader fileInfo, byte[] inputFile) : base(fileInfo, inputFile)
{
}
public SobelFilter(BMPFileHeader fileInfo, FileStream inputFile) : base(fileInfo, inputFile)
{
}
