edge detection
in [Matlab]
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From: Subramanya Bhat on 16 Mar 2006 01:23 hi all, I have stored images(as BMP files) in work directory. What codes I can write for edge detection. How hough transform can be applied for object detection & tracking Plz help me . I will thank in advance sbhat
From: Dora Raymaker on 16 Mar 2006 04:06 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.
From: Dave Robinson on 16 Mar 2006 04:48 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
From: Subramanya Bhat on 16 Mar 2006 06:28 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
From: Dave Robinson on 16 Mar 2006 11:36
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 |