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How to match perspective of two objects

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michael redbourn
How to match perspective of two objects
on Aug 8, 2018 at 8:31:18 pm

Photoshop CC2018

Hi,

I have selection with a transparent background that was shot at around 35 degree angle and I want to place it on a wood background that was shot shooting straight down. I can get the wood background to pretty much match the selection using perspective and warp, but it's pretty hit and miss and not precise.

Any ideas would be much appreciated,

https://drive.google.com/file/d/18KaJt3sAnhVcrIh-vH10MGadsU9h3A-f/view?usp=...

https://drive.google.com/file/d/1y_WFsGgbeiKTo2fW1LrkRofLBaYLuAeg/view?usp=...

Michael


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Jeff Hinkle
Re: How to match perspective of two objects
on Aug 8, 2018 at 9:48:20 pm

This tutorial might be of help:

https://photoshoptrainingchannel.com/place-anything-perspective/

---
It is easier to destroy than to create.
More fun, too.


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michael redbourn
Re: How to match perspective of two objects
on Aug 8, 2018 at 10:22:07 pm

Thanks. Just watched it. Great tutorial an he really knows his stuff.

I will have to think about how to apply it to my situation which is changing the flat object to match the angle of the image on top, and not the reverse.

Also I have to tilt the wood away.

Food for thought.

Michael


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Kalleheikki Kannisto
Re: How to match perspective of two objects
on Aug 9, 2018 at 1:52:14 pm

If you want to make it photographically precise, you can put four marker dots in the white backdrop when you shoot it, to mark out an area in the same proportions as the image you want to place there. Then you can use the free transform tool to match it up to those dots and enlarge it to cover the entire background. Do it in one go, scale right after you've lined it up without applying the intermediate transformation so that you don't downsample the texture in between. As necessary clone or paint out the dots thereafter.

Kalleheikki Kannisto
Senior Graphic Designer


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michael redbourn
Re: How to match perspective of two objects
on Aug 9, 2018 at 10:55:22 pm

Thank you.

Good help but it seems to be the opposite of what I want to do.

I have an existing photo shot at maybe a 33 degree angle and want to manipulate a flat background to match the angle.

Maybe what you suggested can do that but I'm at about PS intermediate level and wouldn't know how to do that.

Michael


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Kalleheikki Kannisto
Re: How to match perspective of two objects
on Aug 12, 2018 at 10:01:50 am

If you don't have any lines or markings from which to see the perspective in the original photo, it is pretty hit and miss. If there's a round plate on a white background there's no way of telling the exact angle you need to match.

However, if you do know the angle, you can use the lens correction filter: in the custom tab set the vertical distortion to 33 degrees, and you will get that exact transformation. You can use the scale option in the same dialogue to fill the whole background as needed.

Kalleheikki Kannisto
Senior Graphic Designer


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michael redbourn
Re: How to match perspective of two objects
on Aug 12, 2018 at 4:26:11 pm

Actually that is not only simple but works very well for what I want to do.

Worst thing is when those with any kind of practiced eye immediately see that the bg and fg were shot at different angles.

I wonder how long before PS will tell us the original angle?

It's AI can already recognize people and many other objects.

Thank you,

Michael

Michael


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