* Add image segmentation node
This is a node which receives as input:
- An image.
- A mask, which consists of colors that define the image segments.
Each unique color in the mask defines an area where a segmen resides.
The node generates a `Vec<ImageFrame>` where the length of the result
is the number of unique colors in the mask.
Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
* Add the Index node for image segments
Since the output of the image segmentation node is a `Vec<ImageFrame>`,
we want a way to access the segments individually. The Index node receives
a `Vec<ImageFrame>` as input and an index, and returns the image found
at that index in the vec.
Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
* Integrate the image segmentation and index nodes into the editor
Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
* Initialize the input of the index node with an empty image frame
Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
* Don't expose the parameter for the index node
Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
* Don't crash the editor when the number of segments exceeds the accepted limit
Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
* Print a warning in the console when the number of segments exceeds the accepted limit
Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
* Add a few more checks so that the editor doesn't crash on invalid input
Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
* Replace the tagged value for the index node
Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
* Fix merge conflicts
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Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
Co-authored-by: Dennis Kobert <dennis@kobert.dev>
* Take the transform of the ImageFrame into account when blending
The implementation computes the axis-aligned bounding box after we transform
the corners of the source image, and then iterates through that box
and computes the inverse of the affine transform of the source image.
The samples are taken based on the u/v coordinates, so that the differences
in size/aspect ratio between the images don't matter.
This makes for a much simpler implementation, and gives us the flexibility
to add different filtering methods in the future, for example.
Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
* Name the parameters for the blend node properly
This avoids confusion between which one of the images is the `source`
image and which one is the `destination`.
Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
* Remove rendundant computation for u/v coordinates
Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
* Rewrite the sampling/clamping logic
* Add image frame transform node
* Move transform node to transform module
* Fix a few issues with our transformation logic
* Fix math + do cleanup
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Signed-off-by: Ică Alexandru-Gabriel <alexandru@seyhanlee.com>
Co-authored-by: Dennis Kobert <dennis@kobert.dev>
Alexandru Ică