image processing- calculate image blur extend and direction
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The code was
c(i)=fft(log(abs(image)));
then calculate c(i') to get the calculate image blur extend and direction. for differentiation of the image i am used sobel filter.bt the diagram(answer) i got was not relevant... i dont know where the mistke? whether using fft or fft2 or fftn for images? or which filter is appropriate for use?
[Merged from duplicate question]
i want to process the image. for the image i have to calculate fft, then abs,then log,t hen again fft. during calculating abs the output was simply white screen. no original image? whats the reason?
댓글 수: 6
Walter Roberson
2012년 1월 19일
You wrote, "actually in the ieee paper" and I am pointing out that IEEE has published multiple papers -- in other words we do not know WHICH paper you are looking at.
답변 (2개)
christian bale
2012년 1월 19일
manoj kitty try in scilab it would be easy than matlab
댓글 수: 6
Ganesh
2012년 1월 20일
Just wanna know so far what u ve implemented in project thats y i asked how many members..
Walter Roberson
2012년 1월 19일
What datatype are you using for your image? If it was an image file that was read in using imread() then the datatype is probably uint8, unsigned 8 bit integers, in which case abs() would not have any effect.
댓글 수: 7
Walter Roberson
2012년 1월 20일
I glanced at the description a number of months ago, but I did not see the point of it at that time, so I am not likely to be able to describe how to use it.
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