Thread Subject: hough transform

hi!
i m using command
[H,T,R]=hough(BW);
where BW is a binary image and error coming 'too many input arguments'
plz help.

"neeti tyagi" <neeti_dec28@yahoo.co.in> wrote in message
news:gum2jh$9jt$1@fred.mathworks.com...
> hi!
> i m using command
> [H,T,R]=hough(BW);
> where BW is a binary image and error coming 'too many input arguments'
> plz help.

When you do size(BW), what do you get?

--Nasser

"neeti tyagi" <neeti_dec28@yahoo.co.in> wrote in message <gum2jh$9jt$1@fred.mathworks.com>...
> hi!
> i m using command
> [H,T,R]=hough(BW);
> where BW is a binary image and error coming 'too many input arguments'
> plz help.

can u help mee about hough transform in image segmentation???
plzzzz

On May 16, 5:56 am, "neeti tyagi" <neeti_de...@yahoo.co.in> wrote:
> hi!
> i m using command
> [H,T,R]=hough(BW);
> where BW is a binary image and error coming 'too many input arguments'
> plz help.

-------------------------------------------------------------------------------------
You must have made an error somewhere (that you're not showing us). I
just ran this demo code from the help documentation with no problem:
clc;
clear all;
close all;
workspace;
RGB = imread('gantrycrane.png');
I = rgb2gray(RGB); % convert to intensity
BW = edge(I,'canny'); % extract edges
[H,T,R] = hough(BW);

How did you get BW? It's not something weird like a structure or cell
array or something is it?