grid lines in debugging mode

[imago.git] / imago.py

diff --git a/imago.py b/imago.py
index 87b522e..9e1697c 100755 (executable)
--- a/imago.py
+++ b/imago.py
@@ -6,11 +6,12 @@ import sys
 import os
 import math
 import argparse
 import os
 import math
 import argparse

+from operator import itemgetter

 
 try:
     import Image, ImageDraw
 except ImportError, msg:
 
 try:
     import Image, ImageDraw
 except ImportError, msg:

-    print >>sys.stderr, msg
+    print >> sys.stderr, msg

     sys.exit(1)
 
 import im_debug
     sys.exit(1)
 
 import im_debug


@@ -25,30 +26,39 @@ def main():
     
     parser = argparse.ArgumentParser(description=__doc__)
     parser.add_argument('file', metavar='file', nargs=1,
     
     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,
     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('-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
     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:
 
     try:
         image = Image.open(args.file[0])
     except IOError, msg:

-        print >>sys.stderr, msg
+        print >> sys.stderr, msg

         return 1
         return 1

+    if image.mode == 'P':
+        image = image.convert('RGB')
+    

     if image.size[0] > args.w:
         image = image.resize((args.w, int((float(args.w)/image.size[0]) *
                               image.size[1])), Image.ANTIALIAS)
     global Saving_dir
     Saving_dir = "saved/" + args.file[0][:-4] + "_" + str(image.size[0]) + "/"
     
     if image.size[0] > args.w:
         image = image.resize((args.w, int((float(args.w)/image.size[0]) *
                               image.size[1])), Image.ANTIALIAS)
     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(image, "original image")
 


@@ -56,6 +66,9 @@ def main():
     if show_all:
         do_something(im_l, "ITU-R 601-2 luma transform")
 
     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_edges = filters.edge_detection(im_l)
     if show_all:    
         do_something(im_edges, "edge detection")


@@ -64,6 +77,9 @@ def main():
     if show_all:
         do_something(im_h, "high pass filters")
     
     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:
     hough1 = Hough(im_h.size)
     im_hough = hough1.transform(im_h)
     if show_all:


@@ -81,6 +97,9 @@ def main():
     if show_all:
         do_something(im_h2, "components centers")
 
     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:
     hough2 = Hough(im_h2.size)
     im_hough2 = hough2.transform(im_h2)
     if show_all:


@@ -88,36 +107,65 @@ def main():
 
     im_h3 = filters.high_pass(im_hough2, 120)
     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)
         draw.line(line_from_angl_dist(line, im_h2.size), fill=255, width=5)

+        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))
+
+    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:
     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")
+        do_something(image_g, "the grid")
+
+    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:
     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, "intersections")

 
     return 0
 
 
     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
 def image_save(image, title=''):
     global Saving_dir
     global Saving_num


@@ -127,20 +175,6 @@ def image_save(image, title=''):
     image.save(filename, 'JPEG')
     Saving_num += 1
 
     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 combine(image1, image2):
     im_l1 = image1.load()
     im_l2 = image2.load()


@@ -156,10 +190,22 @@ def combine(image1, image2):
 
 def line_from_angl_dist((angle, distance), size):
     x1 = - size[0] / 2
 
 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 
     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)]
 
     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())
 if __name__ == '__main__':
     sys.exit(main())