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How to create smooth animations in K3CCDTools 2
In this tutorial I will use stunning Jupiter images from Christopher Go captured by K3CCDTools. Look at his website.
1, In the beginning of our animation session
we have 15 processed frames (they are product of
processing of AVI files - stacking and postprocessing).
However, before doing expansion we must check, what is background level of the frames. It's a simple task - we just load some images into K3CCDTools and move the cursor above black border areas. In the right part of status bar we see the actual levels:
So now we now, that background level is about [6,6,8].
2, Now we can expand all 15 images to the same
size. We will use Expand Frames function:
An Open Dialog appears and we must
select all required files. Then Expand Frames dialog
3, Now we can load all 15 images as an image
sequence into K3CCDTools. We can use Sequence
Player tool (from toolbar) to check how
misaligned the sequence is:
Here is an animated gif:
b, Then we must select some
subregion of frame by using Select Result
c, The selected reactangle can be
The bigger borders we keep, the bigger movement of rectangle we can use.
In Difference mode the difference
between the current frame and the reference frame is
calculated. We can check in Settings Dialog what
difference gain is set:
The higher difference gain is set, the finer differences are visible. Here is an example:
In K3CCDTools 2 we have 3
difference paint modes. We can set the
difference mode by clicking the right mouse button on
Paint Difference button:
During alignment you can select any frame as reference
frame. It helps a lot during alignment
procedure, because difference between the first and the
last frame can be so high, that it is difficult to align
the last frame according to the first frame. The
reference frame is selected by double clicking the
required frame in the frame list.
Using the Sequence Player and "Paint result rectangle only" we can see the result animation at any step in our alignment procedure without need to save or export it.
9, When we are satisfied with the result we
can use Maximize usable rectangle
toolbutton (using right click) to enlarge the result
rectangle to its maximum available size (it is given by
maximum drift of the frames):
Then we can use Select
Result Rectangle or Select fixed sized
rectangle to choose some comfortable image size
(in our case we used 430 x 420 size):
10, So, our animation is prepared. We must not
forget to save the project by using Save project
11, The result animation we can export either
to AVI file or directly to animated
GIF by using menu command File | Export
It is important to check Interior
of rectangles checkbox, because our animation is
defined by frame rectangles.
If you use export to animated GIF, you must specify frame period (duration) in ms.
Important: Some AVI codecs (e.g. DivX) require frame size to be multiple of 4 or 8. So you must choose proper frame rectangle size in step 9.
12, If we use direct export from K3CCDTools to animated GIF, the work is done. We can also create animated GIF by means of another application like Animagic GIF or similar. Here is the result:
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Computer generated images, real images, drawings and texts are property of the author and may not be reproduced or used without permission of author. The Jupiter images are property of Christopher Go.
Last Update: 22.09.2004