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Add Depth of Field to Screenshots

blurmatic.com

21–30 of 63 posts

Re: Add Depth of Field to Screenshots

#25
Just to answer some questions I'm seeing from other comments, this is built with three.js. Think of it as a 3d scene with an image rendered on a 2d plane and the camera has certain gaussian blur applied to a section of it. He's using orbit controls for the zoom in/out and for the ability to pivot the image.

Re: Add Depth of Field to Screenshots

#26

Thats great I've often thought that screenshots aren't blurry enough these days

Limiting depth of field is a very useful way to emphasize specific elements of a photograph and for that reason it's almost always used for portraits.

It also compensates for portrait photos being best taken from a distance using a telephoto lens. The reason those are best is because it captures the face people remember instead of the face they actually see. The reason compensation is needed is because the same lens configuration will get a much smaller depth-of-field up close but a much higher one at a distance.

Re: Add Depth of Field to Screenshots

#29

Looks interesting. In the beginning I thought it would blur the part of the screenshot farthest away from you and keep the closest thing in focus. But that's not how it works. I guess it could be useful for focusing on a particular part of the screenshot if you one could mark what the important part is.

Shallow depth of field is used in photography (and movies, sometimes) for exactly the purpose of focusing viewer attention on a specific element or elements.

EDIT: But now that I've looked at the demo...I am not sure what I would want this for.

Re: Add Depth of Field to Screenshots

#30
post #26

Thats great I've often thought that screenshots aren't blurry enough these days

Limiting depth of field is a very useful way to emphasize specific elements of a photograph and for that reason it's almost always used for portraits. It also compensates for portrait photos being best taken from a distance using a telephoto lens. The reason those are best is because it captures the face people remember instead of the face they actually see. The reason compensation is needed is because the same lens…

Difference being, the face is the content, the background is noise. Here, the screenshot is the content. Ex. The only physical feature of my face i like is my eyes. Yet, it'd be weird if I depth of field'd everything but my eyes.

I'm sure this has uses but it's hard to argue it does from fundamentals of photography

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