/// <summary>
/// Detect all the characters in the image.
/// </summary>
/// <returns>All the characters in the image</returns>
public Character[] GetCharacters()
{
using (VectorOfByte textSeq = new VectorOfByte())
using (VectorOfTesseractResult results = new VectorOfTesseractResult())
{
OcrInvoke.TessBaseAPIExtractResult(_ptr, textSeq, results);
byte[] bytes = textSeq.ToArray();
TesseractResult[] trs = results.ToArray();
Character[] res = new Character[trs.Length];
int idx = 0;
for (int i = 0; i < trs.Length; i++)
{
TesseractResult tr = trs[i];
res[i].Text = _utf8.GetString(bytes, idx, tr.Length).Replace("\n", Environment.NewLine);
idx += tr.Length;
res[i].Cost = tr.Cost;
if (tr.Cost == 0)
{
res[i].Region = Rectangle.Empty;
}
else
{
res[i].Region = tr.Region;
}
}
return(res);
}
}
/// <summary>
/// Detect all the charactors in the image.
/// </summary>
/// <returns>All the charactors in the image</returns>
public Charactor[] GetCharactors()
{
using (MemStorage stor = new MemStorage())
{
Seq <byte> textSeq = new Seq <byte>(stor);
Seq <TesseractResult> results = new Seq <TesseractResult>(stor);
TessBaseAPIExtractResult(_ptr, textSeq, results);
byte[] bytes = textSeq.ToArray();
TesseractResult[] trs = results.ToArray();
Charactor[] res = new Charactor[trs.Length];
int idx = 0;
for (int i = 0; i < trs.Length; i++)
{
TesseractResult tr = trs[i];
res[i].Text = _utf8.GetString(bytes, idx, tr.Length).Replace("\n", Environment.NewLine);
idx += tr.Length;
res[i].Cost = tr.Cost;
if (tr.Cost == 0)
{
res[i].Region = Rectangle.Empty;
}
else
{
res[i].Region = tr.Region;
}
}
return(res);
}
}
/// <summary>
/// Get the item in the specific index
/// </summary>
/// <param name="index">The index</param>
/// <returns>The item in the specific index</returns>
public TesseractResult this[int index]
{
get
{
TesseractResult result = new TesseractResult();
VectorOfTesseractResultGetItem(_ptr, index, ref result);
return(result);
}
}
/// <summary>
/// Convert the standard vector to an array of TesseractResult
/// </summary>
/// <returns>An array of TesseractResult</returns>
public TesseractResult[] ToArray()
{
TesseractResult[] res = new TesseractResult[Size];
if (res.Length > 0)
{
GCHandle handle = GCHandle.Alloc(res, GCHandleType.Pinned);
VectorOfTesseractResultCopyData(_ptr, handle.AddrOfPinnedObject());
handle.Free();
}
return(res);
}
internal static extern void VectorOfTesseractResultGetItem(IntPtr vec, int index, ref TesseractResult element);