26

Re: About upgrade of fractal interpolation plugin

Thanks, I will have a look and see if I understand it...

Michael Vinther

> software developer <

27

Re: About upgrade of fractal interpolation plugin

I tried to read the paper, but I must admit that I didn't fully understand it. Their method is a bit more general as it can handle any scale factor whereas mine and that of Xin Li (NEDI) can only scale to double size so to scale more it is necessary to run it multiple times.
It would be nice to be able to do a comparison, but unfortunately it is hard to extract their source image from the paper because the PDF generation seems to have introduced serious JPG artifacts.

Michael Vinther

> software developer <

28

Re: About upgrade of fractal interpolation plugin

I have made comparsion: http://dl.dropbox.com/u/60527527/Compar … ethods.zip
Your Fractal Interpolation stil give best results.

29

Re: About upgrade of fractal interpolation plugin

Interesting, thanks

Michael Vinther

> software developer <

30

Re: About upgrade of fractal interpolation plugin

It's looks interest, here described Wavelet Discrete Transform for image interpolation: http://dl.dropbox.com/u/60527527/Discre … lation.pdf

31

Re: About upgrade of fractal interpolation plugin

Hi there again! I have to say that Image Analyzer helped me a lot when I did my diploma work. Thank you for such a great interpolation it helped me to enlarge some picture from the web! smile

By the way, can you take a look on this? https://dl.dropboxusercontent.com/u/605 … interp.zip

32

Re: About upgrade of fractal interpolation plugin

Hi
I have seen some quite impressive results with wavelet based image scaling, but it has been a long time since I worked with this.
Did you try any of the algorithms in the ZIP? Unfortunately I don't have access to Matlab any more so I can't easily run them.

Michael Vinther

> software developer <

33

Re: About upgrade of fractal interpolation plugin

They are variations of the idea behind the NEDI algorithm -
http://elynxsdk.free.fr/ext-docs/Demosa … lation.pdf

Michael Vinther

> software developer <