import os
import math
import argparse
+from operator import itemgetter
try:
import Image, ImageDraw
except ImportError, msg:
- print >>sys.stderr, msg
+ print >> sys.stderr, msg
sys.exit(1)
import im_debug
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('file', metavar='file', nargs=1,
- help="image to anlyse")
+ help="image to analyse")
parser.add_argument('-w', type=int, default=640,
- help="scales image to the specified width before analysis")
+ help="scale image to the specified width before analysis")
parser.add_argument('-d', '--debug', dest='show_all', action='store_true',
help="show every step of the computation")
parser.add_argument('-s', '--save', dest='do_something', action='store_const',
const=image_save, default=im_debug.show,
help="save images instead of displaying them")
+ parser.add_argument('-v', '--verbose', dest='verbose', action='store_true',
+ help="report progress")
args = parser.parse_args()
show_all = args.show_all
- do_something = args.do_something
+ do_something = args.do_something
+ verbose = args.verbose
try:
image = Image.open(args.file[0])
except IOError, msg:
- print >>sys.stderr, msg
+ print >> sys.stderr, msg
return 1
if image.size[0] > args.w:
image = image.resize((args.w, int((float(args.w)/image.size[0]) *
global Saving_dir
Saving_dir = "saved/" + args.file[0][:-4] + "_" + str(image.size[0]) + "/"
+ if verbose:
+ print >> sys.stderr, "preprocessing"
+
if show_all:
do_something(image, "original image")
if show_all:
do_something(im_l, "ITU-R 601-2 luma transform")
+ if verbose:
+ print >> sys.stderr, "edge detection"
+
im_edges = filters.edge_detection(im_l)
if show_all:
do_something(im_edges, "edge detection")
if show_all:
do_something(im_h, "high pass filters")
+ if verbose:
+ print >> sys.stderr, "hough transform"
+
hough1 = Hough(im_h.size)
im_hough = hough1.transform(im_h)
if show_all:
if show_all:
do_something(im_h2, "components centers")
+ if verbose:
+ print >> sys.stderr, "second hough transform"
+
hough2 = Hough(im_h2.size)
im_hough2 = hough2.transform(im_h2)
if show_all:
im_h3 = filters.high_pass(im_hough2, 120)
if show_all:
- do_something(im_h3, "third high pass filters")
+ do_something(im_h3, "third high pass filter")
- lines = hough2.find_angle_distance(im_h3)
+ im_h3 = filters.half_centers(im_h3)
+ if show_all:
+ do_something(im_h3, "half centers")
- im_lines = Image.new('L', im_h2.size)
+ if verbose:
+ print >> sys.stderr, "finding the grid"
- draw = ImageDraw.Draw(im_lines)
+ lines_m = hough2.all_lines(im_h3)
+ lines = []
- for line in lines:
+ for line in lines_m:
+ im_line = Image.new('L', im_h2.size)
+ draw = ImageDraw.Draw(im_line)
draw.line(line_from_angl_dist(line, im_h2.size), fill=255, width=5)
- if show_all:
- do_something(im_lines, "lines")
-
- im_c = combine(im_h2, im_lines)
- if show_all:
- do_something(im_c, "first hough x lines")
+ if show_all:
+ do_something(im_line, "line")
+ im_c = combine(im_h2, im_line)
+ if show_all:
+ do_something(im_c, "hough x lines")
+ lines.append(hough1.all_lines(im_c))
+
+ intersections = intersections_from_angl_dist(lines, image.size)
+ image_g = image.copy()
+ draw = ImageDraw.Draw(image_g)
+ for line in intersections:
+ for (x, y) in line:
+ draw.point((x , y), fill=(120, 255, 120))
+
+ for line in intersections:
+ print ' '.join([stone_color(image, intersection) for intersection in
+ line])
- collapse(im_c)
if show_all:
- do_something(im_c, "optimalised hough")
-
- lines = hough1.all_lines(im_c)
- draw = ImageDraw.Draw(image)
- for line in lines:
- draw.line(line_from_angl_dist(line, image.size), fill=(120, 255, 120))
-
- do_something(image, "the grid")
+ do_something(image_g, "the grid")
return 0
+def stone_color(image, (x, y)):
+ suma = 0.
+ for i in range(-2, 3):
+ for j in range(-2, 3):
+ suma += sum(image.getpixel((x + i, y + j)))
+ suma /= 3 * 25
+ if suma < 55:
+ return 'B'
+ elif suma < 200:
+ return '.'
+ else:
+ return 'W'
+
def image_save(image, title=''):
global Saving_dir
global Saving_num
image.save(filename, 'JPEG')
Saving_num += 1
-def collapse(image):
- #HACK
- im_l = image.load()
- last = False
- for y in xrange(image.size[1]):
- for x in xrange(image.size[0]):
- if im_l[x, y] and last:
- im_l[x, y] = 0
- last = False
- elif im_l[x, y]:
- last = True
- elif last:
- last = False
-
def combine(image1, image2):
im_l1 = image1.load()
im_l2 = image2.load()
def line_from_angl_dist((angle, distance), size):
x1 = - size[0] / 2
- y1 = int(round((x1 * math.sin(angle) - distance)/math.cos(angle))) + size[1] / 2
+ y1 = int(round((x1 * math.sin(angle) - distance) / math.cos(angle))) + size[1] / 2
x2 = size[0] / 2
- y2 = int(round((x2 * math.sin(angle) - distance)/math.cos(angle))) + size[1] / 2
+ y2 = int(round((x2 * math.sin(angle) - distance) / math.cos(angle))) + size[1] / 2
return [(0, y1), (size[0] - 1, y2)]
+def intersections_from_angl_dist(lines, size):
+ intersections = []
+ for (angl1, dist1) in sorted(lines[1], key=itemgetter(1)):
+ line = []
+ for (angl2, dist2) in lines[0]:
+ if abs(angl1 - angl2) > 0.4:
+ x = - ((dist2 / math.cos(angl2))-(dist1 / math.cos(angl1))) / (math.tan(angl1) - math.tan(angl2))
+ y = (math.tan(angl1) * x) - (dist1 / math.cos(angl1))
+ line.append((int(x + size[0] / 2), int(y + size[1] / 2)))
+ intersections.append(line)
+ return intersections
+
if __name__ == '__main__':
sys.exit(main())
projekty / imago.git / blobdiff