Archived posting to the Leica Users Group, 2005/11/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hello Phillipe, I used the evaluation version (no time limit, but I like it so much I will probably buy it) of DCE tools (mediachance.com) for perspective and manual lens correction, it's similar to PS but it doesn't require making an extra layer (it's faster too). The nice thing about it is, you have a panel next to the correcting window which shows exactly what is happening to your image. I corrected by pulling the grid at the bottom of the shot out of the image frame, I could have done it at the top but this tends to make the loss of image data too high in the subsequent crop- it's ok if it's only sky,you can fill that up with the healing brush option in PS, if there are details it takes too long (for me) to get it just right in PS-elements 3 For profiled lens corrections I usually use PTlens (freeware at epaperpress), this also has options for straightening out fish-eye shots, removing chromatic aberration and vignetting effects - very similar to DxO but infinitely cheaper (i.e. free). DCE tools also took care of the casts and mid-tone contrast - a very cleverly thought out,effective and easy to use tool box which goes into PS as a plug-in. The sequence was : perspective correctionfirst, then distortion correction (based on a very slight curvature of the frame with the sign Antwerpen on top). I didn't bother doing any rotation. Cheers Douglas By the way the give-away to the composite nature of the shot is that the shadow of the lamp-post in the left foreground should be on the armrest of the nearest sofa too Philippe Orlent wrote: > Hi Douglas, > > I think you nailed it just right. Could you explain me how you did > all this? I'd like to repeat it myself on the high res image. > Thanks for taking out the green cast in the middle of this image, but > in fact I put it there myself and voluntary. > The lens was the Vario Summicorn on the Digilux 2 set at the 35mm > equiv. of 28mm. For all shots. > > Thank you all the others for mailing me the degrees of rotation up > till the .01 degree sharp. > > Below an url that shows the initial and untouched images I started with: > http://tinyurl.com/cxc6r > > And this was the result: > http://tinyurl.com/82jq2 > > > > Op 19-nov-05, om 02:04 heeft Douglas Sharp het volgende geschreven: > >> Philippe, >> I couldn't resist - why do you post shots like this so early in the >> morning? ;-) >> Anyway, I looked at it from all angles, agreed, disagreed, put a >> fine grid over it, played around with it and took 10 minutes to >> tweak a couple of things.. >> I think everything is horizontal or vertical now, but,unfortunately, >> I lost a bit of the lower part by correcting the perspective. >> I also applied a tiny touch of manual distortion correction.(BTW >> what lens was it?, I may have a lens profile here somewhere to get >> an accurate correction) >> >> http://gallery.leica-users.org/New-Old-Pictures/pano Your shot >> http://gallery.leica-users.org/New-Old-Pictures/pano_edited_1 >> whether it's straight I'll leave to your judgment >> >> I also removed a slight colour cast (but that's maybe on my laptop >> TFT-screen) I couldn't be bothered firing up the big machine in the >> office, so if the colours are wrong blame Fujitsu-Siemens and Adobe- >> Gamma. >> cheers >> Douglas >> >> Philippe Orlent wrote: >> >>> Op 19-nov-05, om 01:09 heeft Richard S. Taylor het volgende >>> geschreven: >>> >>>> Why don't all piers have couches? I've never seen anything like >>>> it. It looks like a winning idea to me. >>> >>> >>> >>> In fact, it's a shot I made today for an ad campaign for couches. >>> It's 5 in one photos, one per couch (shot inside in dim light) and >>> the pier itself around noon. >>> The rest is PS. >>> >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >>> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > >