This adds an inpaint node to blender.
In case, you don't know, inpainting does this:
http://en.wikipedia.org/wiki/Inpainting
It's use cases in blender are
* wire removal
* green screen background reconstruction
The node isn't tile based (for fundamental reasons), but very fast,
since it first builds a manhatten distance map and after that performs
color convolution only on the edges.
That's something, one should probably add also to the dilate node (in
step mode) to make it perform a lot better for dilate iterations greater
than 3.
It will bring it's computing time from O(n^3) down to O(n^2).
Take a look here for the details:
http://ostermiller.org/dilate_and_erode.html )
The image format for the node and sockets were not properly initialized. The file output node only supports image types (not movies), so it needs to check for proper format type after copying from the render settings.
Issue was caused by threading conflict between compositor output node which
is freeing buffers used by render result image and image draw code which
could use buffers at the same time as compositor frees this buffers.
Solved by adding adding lock around viewer image invalidation and image
drawing.
Use renamed LOCK_PREVIEW mutex for this, which si not called LOCK_DRAW_IMAGE.
With new compositor locking for preview is not needed so it could be removed.
Added the same lock around viewer operation which also frees buffers used
by viewer image. It's actually quite difficult to check whether this is
indeed needed. This code seems to be using acquire/release technique, but
somehow acquiring ImBuf before invalidating it in compositor operation
doesn't resolve the issue, so probably it's not actually locking acquire
and things should be checked deeper.
- Fixed issues with calculating matte with balance != 0.5
It used to be used concave combination of minimal and maximal
channel values which could be inpredictable.
Use concave combination of two non-major channels sorted
by their index, so such combination would always use the same
coefficients for particular non-major channels.
- Added despill balance slider which defines balance between
non-major channels used for calculating average of two
colors. Difference between average value and pixel value of
major screen channel defines amount of despill. Balance of
0.5 gives the same behavior as it was before this slider
was added.
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svn merge -r48678:48679 -r48789:48790 ^/branches/soc-2011-tomato
- Re-arrange functions in headers and implementation file to make them
more grouped by entity they're operating with. Also order of functions
in implementation file should match order of functions in header for
easier navigation.
- Rename some functions to match conventions of naming public functions.
- Some code de-duplication, still some room for improvements tho.
- Split main 2D tracking functions into smaller steps to make it more clear.
Accidentally OpenMP was disabled in some of previous commits, re-enable it.
This adds garbage matte input to new keying node which is used to
force occluding things which can not be eliminated by color operations.
White areas defines areas which should be removed from final result.
Merge keying node from tomato branch into trunk.
It was considered stable and helpful by Mango team and it'll help
studio pipeline, because nodes would stop disappearing when opening
files in current trunk.
Full information about keying nodes could be found there:
http://wiki.blender.org/index.php/User:Nazg-gul/Keying
Merge Keying Screen node developed in tomato branch into trunk.
This node is aimed to make dealing with non-even greenscreens better
by generating gradiented image which could be used a input for keyer
nodes.
Based on building voronoi diagram using motion tracking markers as
sites position and average pattern color as color for that site.
Pretty straignforward node, some documentation is there
http://wiki.blender.org/index.php/User:Nazg-gul/Keying#Screen_color
