Ask for help here

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anecessaryevil
Posts: 822
Joined: Fri Oct 22, 2010 6:51 pm

Ask for help here

Post by anecessaryevil »

If you are having difficulty figuring something out you can ask here and someone will most likely know how to do what you do not know how to do. If we pile them up here it will help keep the main forum from getting too cluttered.
All photos I use are my photos unless otherwise noted in the post.

anecessaryevil
Posts: 822
Joined: Fri Oct 22, 2010 6:51 pm

Re: Ask for help here

Post by anecessaryevil »

Now I have a place to ask my question about masks! :)

I want to mask off a portion of an image and apply a slight guassian blur to the rest of the image. I have created the mask but cannot figure out how to use it from there.
I realize that it is probably simple but I am stuck.
Any help would be appreciated.
All photos I use are my photos unless otherwise noted in the post.

quantumleap
Posts: 40
Joined: Tue Apr 23, 2013 6:31 pm
Location: Newfoundland, Canada

Re: Ask for help here

Post by quantumleap »

Here's one way of doing it.

Take your main image and blur it as you want. Do a Blend Layers, and feed the blurred image into the box as input A. Type of blend is normal, 100% opacity and swap layers on. Now place a Merge Alpha building block and connect your main image to its left input. Place a Mask building block and connect its output to the bottom input of the Merge Alpha. Set the Merge Alpha to intensity. Connect the Merge Alpha output to input B of the Blend Layers. Edit the mask as required and it should allow the non-blurred section to show through.

See the diagram below for the flow.

Jeff
Attachments
How to blur everything in an image except an area covered by a mask in Photo-Reactor
How to blur everything in an image except an area covered by a mask in Photo-Reactor
BlurAllButMask.jpg (22.27 KiB) Viewed 16951 times

anecessaryevil
Posts: 822
Joined: Fri Oct 22, 2010 6:51 pm

Re: Ask for help here

Post by anecessaryevil »

Thanks. I'll give it a try. It seems like a lot of work for a simple mask.
All photos I use are my photos unless otherwise noted in the post.

minstrel
Posts: 50
Joined: Tue Nov 02, 2010 6:41 pm

Re: Ask for help here

Post by minstrel »

Thanks Jeff,

I was also 'toying' with masks last night...thanks for sharing some 'light' on the subject.

I did notice that I had to 'Swap Layers' to produce the desired result.

...and thanks 'ane' for bringing the topic up!

Minstrel
Attachments
masking toys.png
masking toys.png (252.97 KiB) Viewed 16942 times

smmsamm
Posts: 321
Joined: Tue Oct 26, 2010 7:58 pm

Re: Ask for help here

Post by smmsamm »

Is there any transparent png/psd output? How? thanks

minstrel
Posts: 50
Joined: Tue Nov 02, 2010 6:41 pm

Re: Ask for help here

Post by minstrel »

Wish I could say yes, but no...it has not been implemented yet. Remember, we are at the very early stages of Photo Reactor.
Minstrel

Oscar
Site Admin
Posts: 864
Joined: Fri Oct 22, 2010 9:54 am

Re: Ask for help here

Post by Oscar »

There is a fantastic feature called Group Mask Channel. I wonder if you can figure it out. Hint, first you need to group your effect...

minstrel
Posts: 50
Joined: Tue Nov 02, 2010 6:41 pm

Re: Ask for help here

Post by minstrel »

Oscar wrote:... I wonder if you can figure it out.
I'm on to something here...thanks for the tip, Oscar!
Now I need to dig a littler deeper.

Minstrel
Attachments
group mask channel-discovery.jpg
group mask channel-discovery.jpg (38.43 KiB) Viewed 16922 times

minstrel
Posts: 50
Joined: Tue Nov 02, 2010 6:41 pm

Re: Ask for help here

Post by minstrel »

By George I think I got it!

...the beginnings of it, anyway!

Excellent Oscar!
Minstrel
Attachments
group mask channel- got it.jpg
group mask channel- got it.jpg (34.13 KiB) Viewed 16920 times

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