public void OpenPicture(string file)
{
if (!File.Exists(file))
{
MessageService.ShowError(null, string.Format("Cannot open file : File {0} doesn't exist", file));
return;
}
Original = new BitmapImage(new Uri(file));
VerticalProjection = new Projection(Original)
{
Type = ProjectionType.Vertical
};
VerticalProjection.Compute();
HorizontalProjection = new Projection(Original)
{
Type = ProjectionType.Horizontal
};
HorizontalProjection.Compute();
CharacterIsolation = new CharacterIsolation(Original);
CharacterRecognition = new CharacterRecognition(Original);
Correction = new Correction(Original, new WordTree(new HammingDistance(false),
new HammingDistance('?', false), new FrequencyResolver()));
}
private void OnRecognizeText(object parameter)
{
if (!CanRecognizeText(parameter))
{
return;
}
int i = 0;
var textBuilder = new StringBuilder();
foreach (var word in CharacterIsolation.Words)
{
if (word.LineIndex != i)
{
i = word.LineIndex;
textBuilder.Append("\n");
Correction.Text = textBuilder.ToString();
}
foreach (var character in word.Characters)
{
CharacterRecognition.CharacterZone = character;
CharacterRecognition.Compute();
textBuilder.Append(CharacterRecognition.RecognizedCharacter);
}
textBuilder.Append(" ");
}
Correction.Text = textBuilder.ToString();
CorrectTextCommand.RaiseCanExecuteChanged();
}
private void OnRecognize(object parameter)
{
if (parameter == null || !CanRecognize(parameter))
{
return;
}
var zone = (Int32Rect)parameter;
CharacterRecognition.CharacterZone = zone;
CharacterRecognition.Compute();
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public IActionResult Index()
{
if (!this._memoryCache.TryGetValue <string>(_cacheKey, out string value))
{
value = CharacterRecognition.GetAccessToken();
MemoryCacheEntryOptions cacheOptions = new MemoryCacheEntryOptions();
cacheOptions.AbsoluteExpiration = DateTime.Now.AddDays(1);
this._memoryCache.Set <string>(_cacheKey, value, cacheOptions);
}
var text = CharacterRecognition.GetContent(value);
return(View("Index", text));
}
public static void Can_Parse_Characters()
{
// Arrange
string[] letters =
{
".**..***...**..****.****..**..*..*..***...**.*..*.*.....**..***..***..*..*.*...*****.",
"*..*.*..*.*..*.*....*....*..*.*..*...*.....*.*.*..*....*..*.*..*.*..*.*..*.*...*...*.",
"*..*.***..*....***..***..*....****...*.....*.**...*....*..*.*..*.*..*.*..*..*.*...*..",
"****.*..*.*....*....*....*.**.*..*...*.....*.*.*..*....*..*.***..***..*..*...*...*...",
"*..*.*..*.*..*.*....*....*..*.*..*...*..*..*.*.*..*....*..*.*....*.*..*..*...*..*....",
"*..*.***...**..****.*.....***.*..*..***..**..*..*.****..**..*....*..*..**....*..****.",
};
// Act
string actual = CharacterRecognition.Read(string.Join(Environment.NewLine, letters));
// Assert
actual.ShouldBe("ABCEFGHIJKLOPRUYZ");
}
/// <summary>
/// Gets the number of pixels lit in the specified grid after following the specified instructions.
/// </summary>
/// <param name="instructions">The instructions to use to manipulate the grid of lights.</param>
/// <param name="width">The width of the grid.</param>
/// <param name="height">The height of the grid.</param>
/// <param name="logger">The logger to use.</param>
/// <returns>
/// The number of pixels lit in the grid once the instructions are processed,
/// the code displayed, and a visualization.
/// </returns>
internal static (int PixelsLit, string Code, string Visualization) GetPixelsLit(
IEnumerable <string> instructions,
int width,
int height,
ILogger logger)
{
var operations = instructions
.Select((p) => ParseInstruction(p))
.ToArray();
bool[,] grid = new bool[width, height];
foreach (Instruction instruction in operations)
{
if (instruction.IsRotation)
{
if (instruction.IsColumn)
{
RotateColumn(grid, column: instruction.A, pixels: instruction.B);
}
else
{
RotateRow(grid, row: instruction.A, pixels: instruction.B);
}
}
else
{
LightRectangle(grid, width: instruction.A, height: instruction.B);
}
}
int pixelsLit = CountLitPixels(grid);
string code = CharacterRecognition.Read(grid);
string visualization = logger.WriteGrid(grid, ' ', 'X');
return(pixelsLit, code, visualization);
}
