def exec_page_sync(page_context: PageContext):
options = page_context.options
tls.pageno = page_context.pageno + 1
if not is_ocr_required(page_context):
return PageResult(
pageno=page_context.pageno,
pdf_page_from_image=None,
ocr=None,
text=None,
orientation_correction=0,
)
orientation_correction = 0
if options.rotate_pages:
# Rasterize
rasterize_preview_out = rasterize_preview(page_context.origin, page_context)
orientation_correction = get_orientation_correction(
rasterize_preview_out, page_context
)
ocr_image, preprocess_out = make_intermediate_images(
page_context, orientation_correction
)
ocr_image_out = create_ocr_image(ocr_image, page_context)
pdf_page_from_image_out = None
if not options.lossless_reconstruction:
assert preprocess_out
visible_image_out = preprocess_out
if should_visible_page_image_use_jpg(page_context.pageinfo):
visible_image_out = create_visible_page_jpg(visible_image_out, page_context)
filtered_image = page_context.plugin_manager.hook.filter_page_image(
page=page_context, image_filename=visible_image_out
)
if filtered_image:
visible_image_out = filtered_image
pdf_page_from_image_out = create_pdf_page_from_image(
visible_image_out, page_context, orientation_correction
)
if options.pdf_renderer.startswith('hocr'):
(hocr_out, text_out) = ocr_engine_hocr(ocr_image_out, page_context)
ocr_out = render_hocr_page(hocr_out, page_context)
elif options.pdf_renderer == 'sandwich':
(ocr_out, text_out) = ocr_engine_textonly_pdf(ocr_image_out, page_context)
else:
raise NotImplementedError(f"pdf_renderer {options.pdf_renderer}")
return PageResult(
pageno=page_context.pageno,
pdf_page_from_image=pdf_page_from_image_out,
ocr=ocr_out,
text=text_out,
orientation_correction=orientation_correction,
)
def exec_page_sync(page_context):
options = page_context.options
tls.pageno = page_context.pageno + 1
orientation_correction = 0
pdf_page_from_image_out = None
ocr_out = None
text_out = None
if is_ocr_required(page_context):
if options.rotate_pages:
# Rasterize
rasterize_preview_out = rasterize_preview(page_context.origin,
page_context)
orientation_correction = get_orientation_correction(
rasterize_preview_out, page_context)
rasterize_out = rasterize(
page_context.origin,
page_context,
correction=orientation_correction,
remove_vectors=False,
)
if not any(
[options.clean, options.clean_final, options.remove_vectors]):
ocr_image = preprocess_out = preprocess(
page_context,
rasterize_out,
options.remove_background,
options.deskew,
clean=False,
)
else:
if not options.lossless_reconstruction:
preprocess_out = preprocess(
page_context,
rasterize_out,
options.remove_background,
options.deskew,
clean=options.clean_final,
)
if options.remove_vectors:
rasterize_ocr_out = rasterize(
page_context.origin,
page_context,
correction=orientation_correction,
remove_vectors=True,
output_tag='_ocr',
)
else:
rasterize_ocr_out = rasterize_out
ocr_image = preprocess(
page_context,
rasterize_ocr_out,
options.remove_background,
options.deskew,
clean=options.clean,
)
ocr_image_out = create_ocr_image(ocr_image, page_context)
pdf_page_from_image_out = None
if not options.lossless_reconstruction:
visible_image_out = preprocess_out
if should_visible_page_image_use_jpg(page_context.pageinfo):
visible_image_out = create_visible_page_jpg(
visible_image_out, page_context)
visible_image_out = (
page_context.plugin_manager.hook.filter_page_image(
page=page_context, image_filename=Path(visible_image_out))
or visible_image_out)
pdf_page_from_image_out = create_pdf_page_from_image(
visible_image_out, page_context)
if options.pdf_renderer == 'hocr':
(hocr_out, text_out) = ocr_engine_hocr(ocr_image_out, page_context)
ocr_out = render_hocr_page(hocr_out, page_context)
if options.pdf_renderer == 'sandwich':
(ocr_out,
text_out) = ocr_engine_textonly_pdf(ocr_image_out, page_context)
return PageResult(
pageno=page_context.pageno,
pdf_page_from_image=pdf_page_from_image_out,
ocr=ocr_out,
text=text_out,
orientation_correction=orientation_correction,
)