Durn! Here I thought you were going to tell me that some alignment
option in PhotoShop's photomerge was going to do this automagically.
:-)
And match color. That's the one I haven't figured out how to use yet.
But I will.
Chuck Norcutt
Moose wrote:
> Chuck Norcutt wrote:
>> Incidentally, how do you align a panorama where the images are taken at
>> different points parallel to the subject.
>
> Very carefully. :-D Ha, ha, ha.
>
>> I tried that once long ago (probably using PTGui) and made an absolute
>> mess... no doubt because of an assumed common vantage point.
>>
>
> I think you are right that the usual panorama stitchers make an
> assumption about point of view that wouldn't work with the moving
> parallel approach.
>
> If you look at the image, you will see two big, U-shaped brackets
> sticking out to the side between the 3rd and 4th. axle of each set of
> drive wheels. Both appear relatively end on in the finished composite.
> In the right image the front one is seen very much from the side,
> creating a confusing point of view if I used it in the composite. So
> there are some real problems an automated stitcher would have.
>
> On the other hand, a regular panorama shot from so close would also have
> point of view issues, with the center sen from straight ahead and the
> ends from a sharp angle. I suspect the only way to get a really good
> image from a geometrical/point of view standpoint would be from some
> distance with a modest telephoto.
>
> In this case, I had only two images to merge, so the problem was
> relatively manageable.
>
> - I first applied PTLens to each, to get them linear.
>
> - My hand held level wasn't perfect, so I leveled them up with each other.
>
> - Since they were from different points, there were different
> perspective effects, so the overlap wasn't quite right. I used the
> Rotate, Distort and Move subcommands of Edit=>Transform to match them up
> at the seam area.
>
> - Back at 100% for the top layer, I applied a mask and painted it to
> merge the overlap.
>
> - Because of the wildly different lighting, I did a Color=>Match to help
> blend the color balance.
>
> Moose
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