how to apply z transform for an image

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Jayasri
Jayasri 2014 年 6 月 13 日
コメント済み: Dishant Arora 2014 年 6 月 13 日
i am currently working on applying z transform for images. in matlab, there is a function called ztrans in symbolic math toolbox for applying z transformation for symbolic expressions or matrix of symbolic expressions. could any one please suggest me how to apply z transformation for images, just as we would use fft or dwt2 for images?

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Dishant Arora
Dishant Arora 2014 年 6 月 13 日
doc czt
You can apply czt on each row followed by applying it on each column.
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Jayasri
Jayasri 2014 年 6 月 13 日
Thanks for your reply. And i would also like to know how to perform the inverse for this czt as there is no function in matlab for computing the inverse czt?
Dishant Arora
Dishant Arora 2014 年 6 月 13 日
Here's a elaborate discussion on how to get igct : https://groups.google.com/forum/#!topic/comp.dsp/L_5J6aRu54c. Try to code it

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