From: Tomas Musil Date: Tue, 7 Aug 2012 19:42:52 +0000 (+0200) Subject: ASCII output X-Git-Url: http://git.tomasm.cz/imago.git/commitdiff_plain/ab71bc75ef14e2e731e92274b67988f6c0174061?ds=sidebyside ASCII output --- diff --git a/filters.py b/filters.py index 991ce75..a5d00e6 100644 --- a/filters.py +++ b/filters.py @@ -1,11 +1,6 @@ from PIL import Image -from commons import clear - def edge_detection(image): - clear() - print "edge detection" - image_l = image.load() new_image = Image.new('L', image.size) new_image_l = new_image.load() @@ -25,9 +20,6 @@ def edge_detection(image): return new_image def peaks(image): - clear() - print "peak extraction" - image_l = image.load() new_image = Image.new('L', image.size) new_image_l = new_image.load() @@ -47,9 +39,6 @@ def peaks(image): return new_image def high_pass(image, height): - clear() - print "high pass filter" - image_l = image.load() new_image = Image.new('L', image.size) new_image_l = new_image.load() @@ -64,9 +53,6 @@ def high_pass(image, height): return new_image def components(image): - clear() - print "components center filter" - image_l = image.load() new_image = Image.new('L', image.size) new_image_l = new_image.load() @@ -116,4 +102,34 @@ def components(image): new_image_l[int(round(float(x_c)/c)), int(round(float(y_c)/c))] = 255 - return new_image \ No newline at end of file + return new_image + +def half_centers(image): + image_l = image.load() + new_image = Image.new('L', image.size) + new_image_l = new_image.load() + + x_s = 0 + y_s = 0 + n = 0 + for x in range(0, image.size[0] / 2): + for y in range(0, image.size[1]): + if image_l[x, y] > 127: + x_s += x + y_s += y + n += 1 + new_image_l[x_s / n, y_s / n] = 255 + + x_s = 0 + y_s = 0 + n = 0 + for x in range(image.size[0] / 2, image.size[0]): + for y in range(0, image.size[1]): + if image_l[x, y] > 127: + x_s += x + y_s += y + n += 1 + new_image_l[x_s / n, y_s / n] = 255 + + return new_image + diff --git a/hough.py b/hough.py index a8f64b2..f39784b 100644 --- a/hough.py +++ b/hough.py @@ -2,8 +2,6 @@ from math import sin, cos, pi from PIL import Image -from commons import clear - class Hough: def __init__(self, size): self.size = size @@ -20,8 +18,6 @@ class Hough: initial_angle = self.initial_angle for x in xrange(size[0]): - clear() - print "hough transform: {0:>3}/{1}".format(x + 1, size[0]) for y in xrange(size[1]): if image_l[x, y]: # for every angle: diff --git a/imago.py b/imago.py index 127ddd9..61e2558 100755 --- a/imago.py +++ b/imago.py @@ -6,6 +6,7 @@ import sys import os import math import argparse +from operator import itemgetter try: import Image, ImageDraw @@ -33,10 +34,13 @@ def main(): 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]) @@ -49,6 +53,9 @@ def main(): 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") @@ -56,6 +63,9 @@ def main(): 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") @@ -64,6 +74,9 @@ def main(): 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: @@ -81,6 +94,9 @@ def main(): 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: @@ -90,37 +106,59 @@ def main(): if show_all: do_something(im_h3, "third high pass filter") - im_h3 = filters.components(im_h3) + im_h3 = filters.half_centers(im_h3) if show_all: - do_something(im_h3, "components centers 2") - - lines = hough2.all_lines(im_h3) + 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") + 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)) + + print lines[0] + print lines[1] + + 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]) - im_c = combine(im_h2, im_lines) if show_all: - do_something(im_c, "first hough x lines") - - lines = hough1.all_lines(im_c) - intersections = intersections_from_angl_dist(lines) - draw = ImageDraw.Draw(image) - for (x, y) in intersections: - draw.point((x + image.size[0] / 2, y + image.size[1] / 2), fill=(120, 255, 120)) - - print(len(intersections)) - - 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 @@ -150,14 +188,16 @@ def line_from_angl_dist((angle, distance), size): 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): - intersections = set() - for (angl1, dist1) in lines: - for (angl2, dist2) in lines: - if abs(angl1 - angl2) > 0.3: +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)) - intersections.add((int(x), int(y))) + line.append((int(x + size[0] / 2), int(y + size[1] / 2))) + intersections.append(line) return intersections if __name__ == '__main__':