More refactoring across stream and hybrid.

Stream now much faster, whole test is 72s instead of 92s
pull/153/head
Frh 2020-04-23 14:42:13 -07:00
parent adb14d3522
commit 5db49d4fde
3 changed files with 52 additions and 52 deletions

View File

@ -12,6 +12,7 @@ import pandas as pd
from cv2 import cv2
from .utils import (
get_index_closest_point,
get_textline_coords,
build_file_path_in_temp_dir,
compute_accuracy,
@ -98,6 +99,42 @@ class BaseTextEdges(object):
for alignment_name in alignment_names:
self._textedges[alignment_name] = []
@staticmethod
def _create_new_text_edge(coord, textline, align=None):
return NotImplemented
def _update_edge(self, edge, coord, textline):
return NotImplemented
def _register_textline(self, textline):
"""Updates an existing text edge in the current dict.
"""
coords = get_textline_coords(textline)
for alignment, edge_array in self._textedges.items():
coord = coords[alignment]
# Find the index of the closest existing element (or 0 if none)
idx_closest = get_index_closest_point(
coord, edge_array, fn=lambda x: x.coord
)
# Check if the edges before/after are close enough
# that it can be considered aligned
idx_insert = None
if idx_closest is None:
idx_insert = 0
elif np.isclose(edge_array[idx_closest].coord, coord, atol=0.5):
self._update_edge(edge_array[idx_closest], coord, textline)
elif edge_array[idx_closest].coord < coord:
idx_insert = idx_closest + 1
else:
idx_insert = idx_closest
if idx_insert is not None:
new_edge = self._create_new_text_edge(
coord, textline, align=alignment
)
edge_array.insert(idx_insert, new_edge)
class TextEdges(BaseTextEdges):
"""Defines a dict of left, right and middle text edges found on
@ -109,36 +146,20 @@ class TextEdges(BaseTextEdges):
super().__init__(HORIZONTAL_ALIGNMENTS)
self.edge_tol = edge_tol
def find(self, x_coord, align):
"""Returns the index of an existing text edge using
the specified x coordinate and alignment.
"""
for i, te in enumerate(self._textedges[align]):
if np.isclose(te.coord, x_coord, atol=0.5):
return i
return None
@staticmethod
def _create_new_text_edge(coord, textline, align=None):
y0 = textline.y0
y1 = textline.y1
return TextEdge(coord, y0, y1, align=align)
def add(self, coord, textline, align):
"""Adds a new text edge to the current dict.
"""
y0 = textline.y0
y1 = textline.y1
te = TextEdge(coord, y0, y1, align=align)
te = self._create_new_text_edge(coord, textline, align=align)
self._textedges[align].append(te)
def update(self, textline):
"""Updates an existing text edge in the current dict.
"""
coords = get_textline_coords(textline)
for alignment, edge_array in self._textedges.items():
x_coord = coords[alignment]
idx = self.find(x_coord, alignment)
if idx is None:
self.add(x_coord, textline, alignment)
else:
edge_array[idx].update_coords(
x_coord, textline.y0, edge_tol=self.edge_tol
)
def _update_edge(self, edge, coord, textline):
edge.update_coords(coord, textline.y0, self.edge_tol)
def generate(self, textlines):
"""Generates the text edges dict based on horizontal text
@ -146,7 +167,7 @@ class TextEdges(BaseTextEdges):
"""
for tl in textlines:
if len(tl.get_text().strip()) > 1: # TODO: hacky
self.update(tl)
self._register_textline(tl)
def get_relevant(self):
"""Returns the list of relevant text edges (all share the same

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@ -267,33 +267,12 @@ class TextEdges2(BaseTextEdges):
self.max_rows = None
self.max_cols = None
def _register_textline(self, textline):
"""Updates an existing text edge in the current dict.
"""
coords = get_textline_coords(textline)
for alignment, edge_array in self._textedges.items():
coord = coords[alignment]
@staticmethod
def _create_new_text_edge(coord, textline, align=None):
return TextEdge2(coord, textline)
# Find the index of the closest existing element (or 0 if none)
idx_closest = get_index_closest_point(
coord, edge_array, fn=lambda x: x.coord
)
# Check if the edges before/after are close enough
# that it can be considered aligned
idx_insert = None
if idx_closest is None:
idx_insert = 0
elif np.isclose(edge_array[idx_closest].coord, coord, atol=0.5):
closest_edge = edge_array[idx_closest]
closest_edge.register_aligned_textline(textline, coord)
elif edge_array[idx_closest].coord < coord:
idx_insert = idx_closest + 1
else:
idx_insert = idx_closest
if idx_insert is not None:
new_edge = TextEdge2(coord, textline)
edge_array.insert(idx_insert, new_edge)
def _update_edge(self, edge, coord, textline):
edge.register_aligned_textline(textline, coord)
def _register_all_text_lines(self, textlines):
"""Add all textlines to our edge repository to

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@ -298,7 +298,7 @@ class PlotMethods(object):
table.debug_info["edges_searches"][0].plot_alignments(ax)
else:
for te in table._textedges:
ax.plot([te.x, te.x], [te.y0, te.y1])
ax.plot([te.coord, te.coord], [te.y0, te.y1])
return fig
@staticmethod