DxO ViewPoint working on Graham's shot

[Ian]

OK, with his permission, here is the original:



And here are some permutations of DxO ViewPoint correction:


Vertical straightening and keystone correction


Diagonal anamorphosis correction after keystone correction


One more variation straightened.

The anamorphosis correction does cause straight lines to become curved so you have to weigh up the lesser of two evils and I often find I don't mind the curves if the corner stretching goes away.

You can see my preview of DxO ViewPoint here:

http://dpnow.com/8961.html

Ian

[TheBull1875]

Re: DxO ViewPoint working on Graham's shot

Ian,

The first correction is NOT flattering!! I downloaded the trial after reading your article and whilst I have only played with it so far, I have been impressed. See how busy I am today, I might do a before and after of some buildings.

[Ian]

Re: DxO ViewPoint working on Graham's shot

ViewPoint is most effective when correcting linear perspective distortion but of course people and other objects are not linear and so they may end up worse. But the anamorphosis correction can make some amazing corrections to make, especially, people at the sides or in the corners of wide angle shots look much more normally proportioned.

Ian

[Ian]

Re: DxO ViewPoint working on Graham's shot

I didn't do any barrel distortion correction before running the image through ViewPoint, which I should have done, so I believe the results can still be improved.

Ian

[Graham_of_Rainham]

Re: DxO ViewPoint working on Graham's shot

ViewPoint is most effective when correcting linear perspective distortion but of course people and other objects are not linear and so they may end up worse. But the anamorphosis correction can make some amazing corrections to make, especially, people at the sides or in the corners of wide angle shots look much more normally proportioned.

Ian

Ian, I very much appreciate you taking time to show us what the program is capable of. The most interesting is the anamorphosis and I shall be looking at this in some detail.

Is there any information on the what processes are used to make the transformations I looked at the web site but didn't find any technical info.. I dare say they want to keep the detail of the techniques to themselves, but it would be nice to have some idea of how the pixels are grown or shrunk and how re-sizing artifacts are handled.

Thanks again

[Ian]

Re: DxO ViewPoint working on Graham's shot

There is nothing secret about anamorphosis - it's a well understood perspective geometry concept. In fact it is more about geometry than optics. As you well know anamorphic lenses for filiming and projection have been used for a long time to create wide-screen viewing from standard film stock.

Download and have a play with ViewPoint, it's very interesting and there is a 31 day trial period

Which result do you like the best?

Ian

[TheBull1875]

Re: DxO ViewPoint working on Graham's shot

Here is the original:



And used DxO and cut this bit out (which was the bit I wanted)

[Graham_of_Rainham]

Re: DxO ViewPoint working on Graham's shot

There is nothing secret about anamorphosis - it's a well understood perspective geometry concept. In fact it is more about geometry than optics. As you well know anamorphic lenses for filiming and projection have been used for a long time to create wide-screen viewing from standard film stock.

Download and have a play with ViewPoint, it's very interesting and there is a 31 day trial period

Which result do you like the best?

Ian

The diagonal anamorphosis suits my eye the most. Although if I were to use it, I'd probably have it as a Plug-In and apply different techniques to different areas (foreground and background in the example used) and blend two images (left side & right side).

I'll have to play with it and see if the Plug-In works on layers or selected areas... Looks like it may be well worth trying as Ultra-Wide Angle lenses are one of my favorites.

[TheBull1875]

Re: DxO ViewPoint working on Graham's shot

As an aside, does CS6 have similar controls?

[Ian]

Re: DxO ViewPoint working on Graham's shot

CS6 has some linear perspective correction functions but I don't think it has anamorphisis correction. I think ViewPoint is easier to use for the former as well.

Ian

[TheBull1875]

Re: DxO ViewPoint working on Graham's shot

Thanks Ian, it is a heck of a lot cheaper than upgrading as well :-)