import filters
from hough import Hough
-def prepare(image, show_all, do_something, verbose):
+def prepare(image, show_image, logger):
# TODO comment
im_l = image.convert('L')
- if show_all:
- do_something(im_l, "ITU-R 601-2 luma transform")
+ show_image(im_l, "ITU-R 601-2 luma transform")
- if verbose:
- print >> sys.stderr, "edge detection"
+ logger("edge detection")
im_edges = filters.edge_detection(im_l)
- if show_all:
- do_something(im_edges, "edge detection")
+ show_image(im_edges, "edge detection")
im_h = filters.high_pass(im_edges, 100)
- if show_all:
- do_something(im_h, "high pass filters")
+ show_image(im_h, "high pass filters")
return im_h
-def transform(image, hough, show_all, do_something):
+def transform(image, hough, show_image):
+ # TODO comment
im_hough = hough.transform(image)
- if show_all:
- do_something(im_hough, "hough transform")
+ show_image(im_hough, "hough transform")
# im_hough.image = filters.peaks(im_hough.image)
- # if show_all:
- # do_something(im_hough.image, "peak extraction")
+ # show_image(im_hough.image, "peak extraction")
im_h2 = filters.high_pass(im_hough, 96)
- if show_all:
- do_something(im_h2, "second high pass filters")
+ show_image(im_h2, "second high pass filters")
- im_h2 = filters.components2(im_h2)
- if show_all:
- do_something(im_h2, "components centers")
+ im_h2 = filters.components(im_h2, 2)
+ show_image(im_h2, "components centers")
return im_h2
-def find_lines(image, show_all, do_something, verbose):
+def find_lines(image, show_image, logger):
"""Find lines in the *image*."""
# TODO refactor into smaller functions
+
+ logger("preprocessing")
+ show_image(image, "original image")
- if verbose:
- print >> sys.stderr, "preprocessing"
-
- if show_all:
- do_something(image, "original image")
-
- im_h = prepare(image, show_all, do_something, verbose)
+ im_h = prepare(image, show_image, logger)
hough = Hough.default(im_h)
- if verbose:
- print >> sys.stderr, "hough transform"
+ logger("hough transform")
- im_h2 = transform(im_h, hough, show_all, do_something)
+ im_h2 = transform(im_h, hough, show_image)
- if verbose:
- print >> sys.stderr, "second hough transform"
+ logger("second hough transform")
# im_hough might be used instead im_h2, but at the moment it brings a lot of
# noise to the second transform, which later confuses the center-finding
# mechanism (which is not very robust yet)
hough2 = Hough.default(im_h2)
im_hough2 = hough2.transform(im_h2)
- if show_all:
- do_something(im_hough2, "second hough transform")
+ show_image(im_hough2, "second hough transform")
im_h3 = filters.high_pass(im_hough2, 120)
- if show_all:
- do_something(im_h3, "third high pass filter")
+ show_image(im_h3, "third high pass filter")
- im_h3 = filters.components(im_h3)
- if show_all:
- do_something(im_h3, "half centers")
+ im_h3 = filters.components(im_h3, 1)
+ show_image(im_h3, "half centers")
- if verbose:
- print >> sys.stderr, "finding the grid"
+ logger("finding the lines")
lines_m = hough2.all_lines_h(im_h3)
lines = []
line_points.sort()
bounds += [line_points[0], line_points[-1]]
- if show_all:
- do_something(im_c, "hough x lines")
+ show_image(im_c, "hough x lines")
image_g = image.copy()
draw = ImageDraw.Draw(image_g)
for line in [l for s in lines for l in s]:
draw.line(line_from_angl_dist(line, image.size), fill=(120, 255, 120))
- if show_all:
- do_something(image_g, "lines")
+ show_image(image_g, "lines")
return lines, lines_m[0][0], lines_m[1][0], bounds, hough