Photo Reactor

Upcoming mother of all image editors

Re: Photo Reactor

Postby Oscar » Fri Apr 12, 2013 1:48 pm

I created many painting styles all inside reactor and the tread with lot of samples is here
viewtopic.php?f=5&t=4102
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Re: Photo Reactor

Postby Oscar » Fri Apr 12, 2013 6:07 pm

A mask object can be created with few tools borrowed from photo blend automatic mask
blend1.jpg
blend1.jpg (197.36 KiB) Viewed 9234 times

then the mask is automatically created
blend2.jpg
blend2.jpg (182.08 KiB) Viewed 9234 times


And to simulate photo blend type of blending we can use harmonic blend
blend3.jpg
blend3.jpg (182.44 KiB) Viewed 9234 times

So what we did?
created mask, merged it with the main image and then use harmonic blend to blend it to different background.

Masks can be also used as "masks" like in photoshop layer mask (or selection) where the effect is applied only within the mask. The idea is very simple, any group that we create can have a mask and that mask will be applied to all objects in the group.
So here we blur main image and shift its hue, but apply the inverse mask to the group which means the effects will be applied only to background.
mask1.jpg
mask1.jpg (80.36 KiB) Viewed 9234 times
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Re: Photo Reactor

Postby Oscar » Fri Apr 12, 2013 6:32 pm

Here is the masking idea applied to creating bokeh blur.
We cannot really simulate real lens blur with a gaussian blur. To correctly simulate lens and how the shape of aperture affect blur we will use FFT convolution driven by a camera aperture like kernel (hexagon). Then we will mask it with a foreground mask to apply it on a background..
mask2.jpg
mask2.jpg (74.99 KiB) Viewed 9232 times

So how is the FFT convolution different from normal blur? Pretty significantly. Here is a better image where it will be more obvious:
gaussianvsfft.jpg
gaussianvsfft.jpg (68.71 KiB) Viewed 9232 times

I think it is pretty obvious that the gaussian blur looks simply "blurred" while the FFT Convolution looks "defocused" as with a camera lens.
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Re: Photo Reactor

Postby Art Associates » Fri Oct 02, 2015 12:23 am

I really think his looks an amazing project . . . great work
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Postby Donaldthide » Fri Jan 05, 2018 4:15 am

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