count number object in binary picture on

Asked Mar 20 '18 at 20:48

Active Mar 20 '18 at 23:20

Viewed 59 times

I need some help , the task is to count these black shapes.

The algorithm for segmentation is as follows:

val=1
for x=1:no. of column
  for y=1:no. of rows
    if image(x,y)= 0    /* if a shape point */
       segment(image, val, x, y) ;
val=val+1 ;

function segment(image, val, x, y)
    image(x,y)=val ;
    for i=-1:1
      for j=-1:1
        if image(x+i,y+j)=0    /* if a shape point */
             segment(image,value,x+i,y+j)
end function
/*  After the call to the function, all the pixels of the shape are marked by the values val, and by this way it is separated from the other shapes and background. These points are not tested again (they are no longer zero)

My code make me an error , the code is :

global image
val=1
image=imread('cell.bmp'); %load picture
%imshow(image)%show image
%size(image) %view the length and with op the picture

for x=1:no. of column
  for y=1:no. of rows
    if image(x,y)= 0    /* if a shape point */
       segment(image, val, x, y) ;
val=val+1 ;

function segment(image, val, x, y)
    image(x,y)=val ;
    for i=-1:1
      for j=-1:1
        if image(x+i,y+j)=0    /* if a shape point */
             segment(image,value,x+i,y+j)
end function

Thanks

edited Mar 20 '18 at 23:20

bla

25,846
10
70
101

asked Mar 20 '18 at 20:48

Tzvi Vasserman

don't you think it would make sense to share the error you're facing?please read [ask] – Piglet Mar 20 '18 at 21:36
3

why not use `regionprops` or `bwlabel` ? – bla Mar 20 '18 at 22:17
`if image(x,y)= 0` This is probably your error. `=` is an assignment. The comparison operator is `==`. – beaker Mar 20 '18 at 23:23
I don't think `end function` is valid MATLAB syntax. – Cris Luengo Mar 21 '18 at 01:37
Invert your image, then use the marked duplicate. – rayryeng Mar 21 '18 at 01:59
Hey ,I new to matlab and try to use in bwlabel func but its working.can somewone write me the code withe bwlabel. – Tzvi Vasserman Mar 21 '18 at 08:54
I tried "==" its sayes Unexpected MATLAB operator. – Tzvi Vasserman Mar 21 '18 at 09:09
The duplicate implements `bwlabel` – rayryeng Mar 21 '18 at 16:41
Can you write me the code with bwlabel ? – Tzvi Vasserman Mar 21 '18 at 17:48
Are you not understanding what I just said? The duplicate **implements `bwlabel`**. It has already been coded for you. There is a yellow bar at the top of this page that has a link. Click on that link with your mouse using the left mouse button. – rayryeng Mar 21 '18 at 17:57
1

Oo thanks I dont see it probably because I on my phone – Tzvi Vasserman Mar 21 '18 at 18:08

count number object in binary picture on

0 Answers0