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fix ProcessPage()/ fixes #271 #277

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fix ProcessPage()/ fixes #271 #277

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2 changes: 2 additions & 0 deletions tesseract.pxd
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Original file line number Diff line number Diff line change
Expand Up @@ -234,6 +234,8 @@ cdef extern from "tesseract/resultiterator.h" namespace "tesseract" nogil:
cdef extern from "tesseract/renderer.h" namespace "tesseract" nogil:
cdef cppclass TessResultRenderer:
void insert(TessResultRenderer *)
bool BeginDocument(cchar_t *)
bool EndDocument()

cdef cppclass TessTextRenderer(TessResultRenderer):
TessTextRenderer(cchar_t *) except +
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2 changes: 2 additions & 0 deletions tesseract5.pxd
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Expand Up @@ -173,6 +173,8 @@ cdef extern from "tesseract/resultiterator.h" namespace "tesseract" nogil:
cdef extern from "tesseract/renderer.h" namespace "tesseract" nogil:
cdef cppclass TessResultRenderer:
void insert(TessResultRenderer *)
bool BeginDocument(cchar_t *)
bool EndDocument()

cdef cppclass TessTextRenderer(TessResultRenderer):
TessTextRenderer(cchar_t *) except +
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4 changes: 3 additions & 1 deletion tesserocr.pyx
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Expand Up @@ -2190,7 +2190,7 @@ cdef class PyTessBaseAPI:
raise RuntimeError('No renderers enabled')

def ProcessPage(self, outputbase, image, int page_index, filename,
retry_config=None, int timeout=0):
title="", retry_config=None, int timeout=0):
"""Turn a single image into symbolic text.

See :meth:`ProcessPages` for descriptions of the keyword arguments
Expand Down Expand Up @@ -2227,6 +2227,7 @@ cdef class PyTessBaseAPI:
if pix == NULL:
raise RuntimeError('Failed to read image')
if renderer != NULL:
renderer.BeginDocument(title)
if retry_config is not None:
py_config = _b(retry_config)
cconfig = py_config
Expand All @@ -2235,6 +2236,7 @@ cdef class PyTessBaseAPI:
try:
return self._baseapi.ProcessPage(pix, page_index, cfname, cconfig, timeout, renderer)
finally:
renderer.EndDocument()
pixDestroy(&pix)
del renderer
raise RuntimeError('No renderers enabled')
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