code reorganisation

[imago.git] / imago.py

diff --git a/imago.py b/imago.py
index bfa4c7a..ea9ee6c 100755 (executable)
--- a/imago.py
+++ b/imago.py
@@ -1,50 +1,132 @@
 #!/usr/bin/env python
-"""Usage: imago.py file"""
+
+"""Go image recognition"""
 
 import sys
-import Image
+import os
+import math
+import argparse
+from operator import itemgetter
+
+try:
+    import Image, ImageDraw
+except ImportError, msg:
+    print >> sys.stderr, msg
+    sys.exit(1)
+
 import im_debug
-import filter
-import hough
+import linef
 
-class UsageError(Exception):
-    def __init__(self, msg):
-        self.msg = msg
+Saving_dir = ''
+Saving_num = 0
 
-def main(*argv):
+def main():
     """Main function of the program."""
+    
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument('file', metavar='file', nargs=1,
+                        help="image to analyse")
+    parser.add_argument('-w', type=int, default=640,
+                        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
+    verbose = args.verbose
+
     try:
-        if argv is ():
-            argv = sys.argv[1:]
-            if argv == []:
-                raise UsageError('Missing filename')
-        if "--help" in argv:
-                print __doc__
-                return 0    
-    except UsageError, err:
-        print >>sys.stderr, err.msg, "(\"imago.py --help\" for help)"
-        return 2
+        image = Image.open(args.file[0])
+    except IOError, msg:
+        print >> sys.stderr, msg
+        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]) + "/"
+    
+    lines = linef.find_lines(image, show_all, do_something, verbose)
 
-    #TODO exception on file error
-    image = Image.open(argv[0])
-    #im_debug.show(image, "original image")
+    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_l = image.convert('L')
-    #im_debug.show(im_l, "ITU-R 601-2 luma transform")
+    if show_all:
+        do_something(image_g, "intersections")
 
-    im_edges = filter.edge_detection(im_l)
-    #im_debug.show(im_edges, "edge detection")
+    return 0
 
-    im_h = filter.high_pass(im_edges, 80)
-    #im_debug.show(im_h, "high pass filter")
+def stone_color(image, (x, y)):
+    suma = 0.
+    for i in range(-2, 3):
+        for j in range(-2, 3):
+            try:
+                suma += sum(image.getpixel((x + i, y + j)))
+            except IndexError:
+                pass
+    suma /= 3 * 25
+    if suma < 55:
+        return 'B'
+    elif suma < 200: 
+        return '.'
+    else:
+        return 'W'
 
-    im_hough = hough.transform(im_h)
-    #im_debug.show(im_hough, "hough transform")
+def image_save(image, title=''):
+    global Saving_dir
+    global Saving_num
+    filename = Saving_dir + "{0:0>2}".format(Saving_num) + '.jpg'
+    if not os.path.isdir(Saving_dir):
+        os.makedirs(Saving_dir)
+    image.save(filename, 'JPEG')
+    Saving_num += 1
 
-    im_h2 = filter.high_pass(im_hough, 120)
-    im_debug.show(im_h2, "high pass filter")
+def combine(image1, image2):
+    im_l1 = image1.load()
+    im_l2 = image2.load()
 
-    return 0
+    on_both = []
+
+    for x in xrange(image1.size[0]):
+        for y in xrange(image1.size[1]):
+            if im_l1[x, y] and im_l2[x, y]:
+                on_both.append((x, y))
+    return on_both
+
+def intersections_from_angl_dist(lines, size):
+    intersections = []
+    for (angl1, dist1) in sorted(lines[1], key=itemgetter(1)):
+        line = []
+        for (angl2, dist2) in sorted(lines[0], key=itemgetter(1)):
+            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))
+                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()