code reorganisation

[imago.git] / imago.py

diff --git a/imago.py b/imago.py
index cf04f53..ea9ee6c 100755 (executable)
--- a/imago.py
+++ b/imago.py
@@ -15,8 +15,7 @@ except ImportError, msg:
     sys.exit(1)
 
 import im_debug
-import filters
-from hough import Hough
+import linef
 
 Saving_dir = ''
 Saving_num = 0
@@ -56,96 +55,7 @@ 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")
-
-    im_l = image.convert('L')
-    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")
-
-    im_h = filters.high_pass(im_edges, 100)
-    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:
-        do_something(im_hough, "hough transform")
-
-    im_hough = filters.peaks(im_hough)
-    if show_all:
-        do_something(im_hough, "peak extraction")
-               
-    im_h2 = filters.high_pass(im_hough, 120)
-    if show_all:
-        do_something(im_h2, "second high pass filters")
-
-    im_h2 = filters.components(im_h2)
-    if show_all:
-        do_something(im_h2, "components centers")
-
-    if verbose:
-        print >> sys.stderr, "second hough transform"
-
-    hough2 = Hough(im_h2.size) 
-    # 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)
-    im_hough2 = hough2.transform(im_h2)
-    if show_all:
-        do_something(im_hough2, "second hough transform")
-
-    im_h3 = filters.high_pass(im_hough2, 120)
-    if show_all:
-        do_something(im_h3, "third high pass filter")
-     
-    im_h3 = filters.components(im_h3)
-    if show_all:
-        do_something(im_h3, "half centers")
-
-    if verbose:
-        print >> sys.stderr, "finding the grid"
-
-    lines_m = hough2.all_lines_h(im_h3)
-    lines = []
-    im_c = im_h2.convert('RGB').convert('RGB', (1, 0.5, 0.5, 0))
-    draw_c = ImageDraw.Draw(im_c)
-
-    for line_l in lines_m:
-        im_line = Image.new('L', im_h2.size)
-        draw = ImageDraw.Draw(im_line)
-        line_points = set()
-        for line in line_l:
-            draw.line(line_from_angl_dist(line, im_h2.size), fill=255, width=5)
-            draw_c.line(line_from_angl_dist(line, im_c.size), fill=(70, 70, 70), width=5)
-            for p in combine(im_h2, im_line):
-                line_points.add(p)
-        for point in line_points:
-            draw_c.point(point, fill=(120, 255, 120))
-        lines.append(hough1.lines_from_list(line_points))
-
-    if show_all:
-        do_something(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, "the grid")
+    lines = linef.find_lines(image, show_all, do_something, verbose)
 
     intersections = intersections_from_angl_dist(lines, image.size)
     image_g = image.copy()
@@ -167,7 +77,10 @@ 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)))
+            try:
+                suma += sum(image.getpixel((x + i, y + j)))
+            except IndexError:
+                pass
     suma /= 3 * 25
     if suma < 55:
         return 'B'
@@ -197,13 +110,6 @@ def combine(image1, image2):
                 on_both.append((x, y))
     return on_both
 
-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
-    x2 = size[0] / 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)):
@@ -212,9 +118,15 @@ def intersections_from_angl_dist(lines, size):
             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)))
+                if (-size[0] / 2 < x < size[0] / 2 and 
+                    -size[1] / 2 < y < size[1] / 2):
+                    line.append((int(x + size[0] / 2), int(y + size[1] / 2)))
         intersections.append(line)
     return intersections
 
 if __name__ == '__main__':
-    sys.exit(main())
+    try:
+        sys.exit(main())
+    except KeyboardInterrupt:
+        print "Interrupted."
+        sys.exit()