public Pix GetBinaryImage(PageIteratorLevel level)
{
VerifyNotDisposed();
if (handle.Handle == IntPtr.Zero)
{
return(null);
}
return(Pix.Create(TessApi.Native.PageIteratorGetBinaryImage(handle, level)));
}
public Pix GetImage(PageIteratorLevel level, int padding, out int x, out int y)
{
VerifyNotDisposed();
if (handle.Handle == IntPtr.Zero)
{
x = 0;
y = 0;
return(null);
}
return(Pix.Create(TessApi.Native.PageIteratorGetImage(handle, level, padding, page.Image.Handle, out x, out y)));
}
/// <summary>
/// Gets the thresholded image that was OCR'd.
/// </summary>
/// <returns></returns>
public Pix GetThresholdedImage()
{
Recognize();
var pixHandle = TessApi.Native.BaseAPIGetThresholdedImage(Engine.Handle);
if (pixHandle == IntPtr.Zero)
{
throw new TesseractException("Failed to get thresholded image.");
}
return(Pix.Create(pixHandle));
}
/// <summary>
/// Converts the specified <paramref name="img"/> to a <see cref="Pix"/>.
/// </summary>
/// <param name="img">The source image to be converted.</param>
/// <returns>The converted pix.</returns>
public Pix Convert(Bitmap img)
{
var pixDepth = GetPixDepth(img.PixelFormat);
var pix = Pix.Create(img.Width, img.Height, pixDepth);
BitmapData imgData = null;
PixData pixData = null;
try {
// TODO: Set X and Y resolution
if ((img.PixelFormat & PixelFormat.Indexed) == PixelFormat.Indexed)
{
CopyColormap(img, pix);
}
// transfer data
imgData = img.LockBits(new Rectangle(0, 0, img.Width, img.Height), ImageLockMode.ReadOnly, img.PixelFormat);
pixData = pix.GetData();
if (imgData.PixelFormat == PixelFormat.Format32bppArgb)
{
TransferDataFormat32bppArgb(imgData, pixData);
}
else if (imgData.PixelFormat == PixelFormat.Format24bppRgb)
{
TransferDataFormat24bppRgb(imgData, pixData);
}
else if (imgData.PixelFormat == PixelFormat.Format8bppIndexed)
{
TransferDataFormat8bppIndexed(imgData, pixData);
}
else if (imgData.PixelFormat == PixelFormat.Format1bppIndexed)
{
TransferDataFormat1bppIndexed(imgData, pixData);
}
return(pix);
} catch (Exception) {
pix.Dispose();
throw;
} finally {
if (imgData != null)
{
img.UnlockBits(imgData);
}
}
}