protected internal Binarizer(LuminanceSource source)
{
if (source == null)
{
throw new System.ArgumentException("Source must be non-null.");
}
this.source = source;
}
protected internal Binarizer(LuminanceSource source)
{
if (source == null)
{
throw new System.ArgumentException("Source must be non-null.");
}
this.source = source;
}
/// <summary> Creates a new object with the same type as this Binarizer implementation, but with pristine /// state. This is needed because Binarizer implementations may be stateful, e.g. keeping a cache /// of 1 bit data. See Effective Java for why we can't use Java's clone() method. /// /// </summary> /// <param name="source">The LuminanceSource this Binarizer will operate on. /// </param> /// <returns> A new concrete Binarizer implementation object. /// </returns> public abstract Binarizer createBinarizer(LuminanceSource source);
/// <summary> Returns a new object with rotated image data. Only callable if isRotateSupported() is true.
///
/// </summary>
/// <returns> A rotated version of this object.
/// </returns>
public BinaryBitmap rotateCounterClockwise()
{
LuminanceSource newSource = binarizer.LuminanceSource.rotateCounterClockwise();
return(new BinaryBitmap(binarizer.createBinarizer(newSource)));
}
/// <summary> Returns a new object with cropped image data. Implementations may keep a reference to the
/// original data rather than a copy. Only callable if isCropSupported() is true.
///
/// </summary>
/// <param name="left">The left coordinate, 0 <= left < getWidth().
/// </param>
/// <param name="top">The top coordinate, 0 <= top <= getHeight().
/// </param>
/// <param name="width">The width of the rectangle to crop.
/// </param>
/// <param name="height">The height of the rectangle to crop.
/// </param>
/// <returns> A cropped version of this object.
/// </returns>
public BinaryBitmap crop(int left, int top, int width, int height)
{
LuminanceSource newSource = binarizer.LuminanceSource.crop(left, top, width, height);
return(new BinaryBitmap(binarizer.createBinarizer(newSource)));
}
/// <summary> Creates a new object with the same type as this Binarizer implementation, but with pristine /// state. This is needed because Binarizer implementations may be stateful, e.g. keeping a cache /// of 1 bit data. See Effective Java for why we can't use Java's clone() method. /// /// </summary> /// <param name="source">The LuminanceSource this Binarizer will operate on. /// </param> /// <returns> A new concrete Binarizer implementation object. /// </returns> public abstract Binarizer createBinarizer(LuminanceSource source);