Average Images

[user_deleted]

hi out there

i would like to average (or mix) 3 or n images together is there an opportunity to do this in shake 4?

cheers joe

[user_deleted]

If you want to Mix 3 images do it in groups of 2: attrach two to a Mix node (in the Layer Nodes Tab). The result is attached to another Mix Node with the third image.

As if working with Layers the first images to be mixed will tend to fade away as more images are mixed, so remember to keep the second mix in a low value (not 50% but less)

For compostions (not just blending / averaging) use the Multilayer node.

[user_deleted]

thx for your answer! how can i fix this problem if i want to blend 3 images in a imagesequenz without mix them together from hand? do i have to write a macro?

cheeers joe

[deke-kincaid]

Writing a macro is the same thing as doing it by hand. There is no difference. If you want it in one node, just use the multicomp.

[user_deleted]

It is actually a bit easier to do it in the timing tab if you want to average an incoming file.

Go to timing tab on the file that you want to average.
Leave the speed at one.
Leave the mode on blend.
Enter the number of frames you want the averaging to take place in range.

Catherine

[user_deleted]

There is actually a hidden node that does this called 'Average'
Paste the following into the terminal and hit enter.

shake -average your_images 1 3 1 1 1 0 1 -gui

The node will come up red in the gui because it's looking for a file sequence called
'your_images'.

Now just load your own images with the file browser.
You set the range of images for averaging with the sStart & sEnd parameters.

Alan.

[user_deleted]

QUOTE(afair @ 09/10/06, 08:00 PM) [snapback]247224[/snapback]
There is actually a hidden node that does this called 'Average'
Paste the following into the terminal and hit enter.

shake -average your_images 1 3 1 1 1 0 1 -gui

The node will come up red in the gui because it's looking for a file sequence called
'your_images'.

Now just load your own images with the file browser.
You set the range of images for averaging with the sStart & sEnd parameters.

Alan.

I tried this and got this message:

-bash: shake: command not found

What could I have done wrong?

Jorge Arango

[joojaa]

to average 3 pictures mix first to 50 50 so they would now be wighted avarage and then add the next at 33% mix. thets the way i do it in photoshp.

However in shake you could just put 033 gain on everything and sum them together too.

[user_deleted]

QUOTE(JorgeArango @ 09/15/06, 04:23 PM) [snapback]247594[/snapback]
I tried this and got this message:
-bash: shake: command not found
What could I have done wrong?

seems like your installation skipped the command line version ..

type:
which shake

and you should return something like:
/usr/bin/shake

also make sure that shake is is in your path:
$PATH
-bash: /bin:/sbin:/usr/bin:/usr/sbin:/Users/chris:

as for averaging frames, you can do this in the retime tab in the file in node, or you can bring back the average node that was stripped from the gui by putting the following file into your include/startup/ui folder:

CODE
nuiPushToolBox("Image");
    nuiToolBoxItem("Average", " const char *fileName = getFileInName
(); fileName ? Average(fileName,1,5,1,3,1,1.5,1.0) : (image)0; ");
nuiPopToolBox();

nuiDefSlider("Average.sStart",            0,        100);
nuiDefSlider("Average.sEnd",            0,        100);
nuiDefSlider("Average.dStart",            0,        100);
nuiDefSlider("Average.dEnd",            0,        100);
nuiDefSlider("Average.gain",            0,        2);
nuiDefSlider("Average.scale",            0,        2);

+++ christoph ++

[user_deleted]

QUOTE(zem @ 09/16/06, 02:59 AM) [snapback]247665[/snapback]
seems like your installation skipped the command line version ..

type:
which shake

and you should return something like:
/usr/bin/shake
also make sure that shake is is in your path:
$PATH
-bash: /bin:/sbin:/usr/bin:/usr/sbin:/Users/chris:
as for averaging frames, you can do this in the retime tab in the file in node, or you can bring back the average node that was stripped from the gui by putting the following file into your include/startup/ui folder:

CODE
nuiPushToolBox("Image");
    nuiToolBoxItem("Average", " const char *fileName = getFileInName
(); fileName ? Average(fileName,1,5,1,3,1,1.5,1.0) : (image)0; ");
nuiPopToolBox();

nuiDefSlider("Average.sStart",            0,        100);
nuiDefSlider("Average.sEnd",            0,        100);
nuiDefSlider("Average.dStart",            0,        100);
nuiDefSlider("Average.dEnd",            0,        100);
nuiDefSlider("Average.gain",            0,        2);
nuiDefSlider("Average.scale",            0,        2);

+++ christoph ++

Thank you zem,

I guess when I installed Shake I forced it to install in the Applications folder and not where it wanted. I''l try to reinstall when I get some time.

Jorge Arango

[user_deleted]

i guess you could just type the full path to the shake binary as well for the tip above from alan...

/Applications/Shake/shake.app/Contents/MacOS/shake -average your_images 1 3 1 1 1 0 1 -gui

but eventually you'll want to make sure the command line version works properly.
++ ch

[user_deleted]

QUOTE(zem @ 09/16/06, 06:28 PM) [snapback]247708[/snapback]
i guess you could just type the full path to the shake binary as well for the tip above from alan...
/Applications/Shake/shake.app/Contents/MacOS/shake -average your_images 1 3 1 1 1 0 1 -gui

but eventually you'll want to make sure the command line version works properly.
++ ch

Yes sir, that worked!

Loving this application. Have it since less than a month.

Thank you.

Jorge Arango