Enblend disable seam-cut

[memecs]

Hello,

Does enblend have a flag to completely disable the seam-cut. In practice I'd like to apply to a panorama multi-band blending only. 

[Carlos Eduardo G. Carvalho (Cartola)]

Sorry, my English is not so good, but what would be a multi-band blending? Do you want to fuse images, like enfuse does? Maybe you could generate the remapped not cropped images in Hugin and just enfuse them at the end.

[ ]s,

Carlos E G Carvalho (Cartola)
http://cartola.org/360
http://www.panoforum.com.br/

2012/10/2 memecs <fedep...@gmail.com>

Hello,

Does enblend have a flag to completely disable the seam-cut. In practice I'd like to apply to a panorama multi-band blending only. 

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[memecs]

--no-optimize should do it. With multi-band blending I meant the spline based blending used by enblend.

[Monkey]

-no-optimize only stops enblend from refining seams. It still has to generate the seams in the first place, otherwise there would be no way to blend the images. Is that what you mean by "seam-cut"?

[memecs]

Yeah right, the cut computed by the NFT is stable accross multiple frames, I just didn't want optimization to change it.

[Monkey]

Multiple frames? Are you doing something with video, or do you mean something else? Just asking out of curiousity, as I have done some work on applying blending to video.

[memecs]

Yes on videos. It's a rig with few cameras having different nodal points. Any suggestion is highly appreciated ;) .

[Monkey]

I can point you to this thread at doom9.org - http://forum.doom9.org/showthread.php?t=152109 - which discusses an AviSynth plugin I wrote called fusion. It applies enblend-type blending to two video clips, using a third video clip as a mask. If you could find a way of remapping your video clips (I don't know of any very flexible method with AviSynth, but I also wrote a plugin called defish) and generating mask clips, you might find it useful - but ideally you would want a plugin which could blend an arbitrary number of clips at once, the way multiblend does.

Do you have any examples of raw frames from all cameras?

[Carlos Eduardo G. Carvalho (Cartola)]

I am not sure if it is related, but the Magic Lantern firmware for canon DSLRs make an HDR video. It requires post processing for fusing its expositions. Maybe some of the suggested methods they use can also help.

Here is one tutorial I found, which uses After Effects and Photomatix (unfortunatelly proprietary tools) to join the frames:
http://ae.tutsplus.com/tutorials/production/a-simple-way-to-shoot-hdr-video-footage-using-magic-lantern/

Here the Magic Lantern Forum: http://www.magiclantern.fm/forum/

And the ML site: http://magiclantern.wikia.com/wiki/Magic_Lantern_Firmware_Wiki

And here a section with some suggested workflows: http://wiki.magiclantern.fm/userguide#hdr_video

[ ]s,

Carlos E G Carvalho (Cartola)
http://cartola.org/360
http://www.panoforum.com.br/

2012/10/4 Monkey <davidh...@gmail.com>

I can point you to this thread at doom9.org - http://forum.doom9.org/showthread.php?t=152109 - which discusses an AviSynth plugin I wrote called fusion. It applies enblend-type blending to two video clips, using a third video clip as a mask. If you could find a way of remapping your video clips (I don't know of any very flexible method with AviSynth, but I also wrote a plugin called defish) and generating mask clips, you might find it useful - but ideally you would want a plugin which could blend an arbitrary number of clips at once, the way multiblend does.

Do you have any examples of raw frames from all cameras?

[memecs]

Thanks for the information! I also did some work on calibration of fisheye lenses and wrote some code to estimate lens distortion and remapping to rectilinear projection. Images are not mine as well and I am not really sure I can disclose them right now. However they more or less look like this:

https://maps.google.com/maps?q=malibu&hl=en&ll=34.060055,-118.801174&spn=0.129556,0.217838&sll=37.0625,-95.677068&sspn=62.226996,111.533203&t=h&hnear=Malibu,+Los+Angeles,+California&layer=c&cbll=34.068586,-118.811526&panoid=VpuWXFF9zzExoYvSSjUoJg&cbp=12,55.47,,0,2.98&z=13

[memecs]

Thanks! I'll check them out.

[JohnPW]

Wow, that is super cool!