Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #44400

Re: Nested For loop not running full

Show key headers only | View raw

On 4/26/2013 4:48 AM, inshu chauhan wrote:
> Hello everyone,
>
> I have this part of my code where I am trying to traverse over an image
> by running a for loop for both x and y co-ordinate axis. But the loop is
> terminating by just reading first pixel. Can think of a reason why this
> is happening ?

*A* reason could be that segimage.height and .width are both 1. I would 
print them out to see what they are.

>
> The code is:
> for sy in xrange(0, segimage.height):
>      for sx in xrange(0, segimage.width):
>              if segimage[sy,sx] == (0.0, 0.0, 0.0):
>                  continue
>              else:
>                  seg_color = segimage[sy,sx]
>                  blue = int(seg_color[0])
>                  green = int(seg_color[1])
>                  red = int(seg_color[2])
>                  reg_num = blue + 256 * green + 65536 * red
>                  for l in f:
>                      sp = l.split(",")
>                      if len(sp) == 14:
>                          print sy, sx  # for checking which pixel its
> reading currently
>                          print reg_num, sp[0]  # for checking whats
> happening
>                          if reg_num == int(sp[0].strip()):
>                              print reg_num, sp[0].strip() # for checking
> whats happening
>                              classification = int(sp[13].strip())
>
> The inside "for loop" is for reading a csv format file from which I am
> extracting some information.
>
> Thanks in Advance for your suggestions
>
>
>
>

Back to comp.lang.python | Previous | Next | Find similar | Unroll thread

Thread

Re: Nested For loop not running full Terry Jan Reedy <tjreedy@udel.edu> - 2013-04-26 05:10 -0400

csiph-web