edge detection
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From: Subramanya Bhat on 17 Mar 2006 00:55 Dave Robinson wrote: > > > Subramanya Bhat wrote: >> >> >> Dave Robinson wrote: >>> >>> >>> Dora Raymaker wrote: >>>> >>>> >>>> imread('filename') creates a nice matrix of color / > intensity >>>> values. >>>> I'm using the matrix from imread() for a project that >> requires >>>> edge >>>> detection that I'm currently working on. >>> >>> Surprisingly >>> >>> help edge >>> >>> keyed into the workspace comes up with all you need to know > about >>> edge detection in images. If it doesn't then this suggests > that >> you >>> might need to learn something about image processing. >>> >>> Regards >>> >>> Dave Robinson >> >> respected sir, >> I m doing my M.tech degree research project on "object detection > & >> tracking using webcamera" >> I have used the following code for edge detection .But it is > giving >> error >> >> I=imread('a1.bmp'); i have stored my image as a1.bmp >> BW1=edge(I,'sobel') >> >> it is giving error : BW1 unknown >> >> plz help me . i will never forget u r help >> >> sbhat > > I repeated your code exactly with one of my own images, and > providing > it is a single plane 'greyscale' image it works perfectly. I get an > error message when I try to pass it a colour image, but I am unable > to reproduce your error message - I am afraid I have no idea what > you > are doing wrong. > > Sorry > > Dave Robinson respected sir I did as u told .I got edge detection even for color images also. I have stored 10 images. I have to track a particular object in all the images. What can I do next ? as i m new with Matlab I m facing problems.. Plz help me . I have to finish my project within 2 months yours faithfully sbhat
From: Michael Wild on 17 Mar 2006 04:27 Subramanya Bhat wrote: > Dave Robinson wrote: > >> >>Subramanya Bhat wrote: >> >>> >>>Dave Robinson wrote: >>> >>>> >>>>Dora Raymaker wrote: >>>> >>>>> >>>>>imread('filename') creates a nice matrix of color / >> >>intensity >> >>>>>values. >>>>>I'm using the matrix from imread() for a project that >>> >>>requires >>> >>>>>edge >>>>>detection that I'm currently working on. >>>> >>>>Surprisingly >>>> >>>>help edge >>>> >>>>keyed into the workspace comes up with all you need to know >> >>about >> >>>>edge detection in images. If it doesn't then this suggests >> >>that >> >>>you >>> >>>>might need to learn something about image processing. >>>> >>>>Regards >>>> >>>>Dave Robinson >>> >>>respected sir, >>>I m doing my M.tech degree research project on "object > > detection > >>& >> >>>tracking using webcamera" >>>I have used the following code for edge detection .But it is >> >>giving >> >>>error >>> >>>I=imread('a1.bmp'); i have stored my image as a1.bmp >>>BW1=edge(I,'sobel') >>> >>>it is giving error : BW1 unknown >>> >>>plz help me . i will never forget u r help >>> >>>sbhat >> >>I repeated your code exactly with one of my own images, and >>providing >>it is a single plane 'greyscale' image it works perfectly. I get an >>error message when I try to pass it a colour image, but I am unable >>to reproduce your error message - I am afraid I have no idea what >>you >>are doing wrong. >> >>Sorry >> >>Dave Robinson > > respected sir > I did as u told .I got edge detection even for color images also. > I have stored 10 images. I have to track a particular object in all > the images. What can I do next ? as i m new with Matlab I m facing > problems.. > > Plz help me . I have to finish my project within 2 months > > yours faithfully > sbhat we can't help you there. describe your algorithm, how do you detect objects etc. then tell us how you think you are going to implement it and what problems you face. then we might help. we're not going to do the work for you. michael
From: Subramanya Bhat on 17 Mar 2006 08:11
Subramanya Bhat wrote: > > > Dave Robinson wrote: >> >> >> Subramanya Bhat wrote: >>> >>> >>> Dave Robinson wrote: >>>> >>>> >>>> Dora Raymaker wrote: >>>>> >>>>> >>>>> imread('filename') creates a nice matrix of color / >> intensity >>>>> values. >>>>> I'm using the matrix from imread() for a project that >>> requires >>>>> edge >>>>> detection that I'm currently working on. >>>> >>>> Surprisingly >>>> >>>> help edge >>>> >>>> keyed into the workspace comes up with all you need to > know >> about >>>> edge detection in images. If it doesn't then this > suggests >> that >>> you >>>> might need to learn something about image processing. >>>> >>>> Regards >>>> >>>> Dave Robinson >>> >>> respected sir, >>> I m doing my M.tech degree research project on "object > detection >> & >>> tracking using webcamera" >>> I have used the following code for edge detection .But it is >> giving >>> error >>> >>> I=imread('a1.bmp'); i have stored my image as a1.bmp >>> BW1=edge(I,'sobel') >>> >>> it is giving error : BW1 unknown >>> >>> plz help me . i will never forget u r help >>> >>> sbhat >> >> I repeated your code exactly with one of my own images, and >> providing >> it is a single plane 'greyscale' image it works perfectly. I get > an >> error message when I try to pass it a colour image, but I am > unable >> to reproduce your error message - I am afraid I have no idea what >> you >> are doing wrong. >> >> Sorry >> >> Dave Robinson > respected sir Thanks for your advice > I did as u told .I got edge detection even for color images also. > I have stored 10 images. I have to track a particular object in all > the images. What can I do next ? as i m new with Matlab I m facing > problems.. > > Plz help me . I have to finish my project within 2 months > > yours faithfully > sbhat |