🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️

Applying electromotive force to cloud computing. Office Hours:

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

Igneous, our Python software for managing Neuroglancer 3D images, meshes, and skeletons, is now published open access in Frontiers in Neural Circuits!

Aleksandar Zlateski @jalex_bae @tartavull @nkemnitz1 @jingpeng_wu @SebastianSeung

https://t.co/crntvRZqVW

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

@ChShersh @zuhaitz_dev I actually used this in production software and it had a measurable benefit.
https://t.co/JsGWHDUfJE

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

connected-components-3d 3.29.0

- Faster 6-connected multilabel CCL ~5-15%

Finally started applying those cool state machine techniques (PRED) to multilabel algorithms.

https://t.co/ZMUrQ27OY3

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

@jaywyawhare @VazeKshitij what about std::swap where in some cases the compiler will just exchange its interpretation of the variables without moving any data

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

@joodalooped if you click on the gist, she has an html file in there. make of it what you will, but the latter does remind me of the examples in that book

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

@keenanisalive You have to know if it's a high quality implementation of the algorithm though. It can be sometimes easy to tell if its a particularly bad implementation, but it's not always obvious. Especially if you don't have reference benchmarks in the paper.

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

@JakeKAllDay @TheStalwart Have you ever heard of Dick Cheney? It worked on humans.

That alumnus of the Nixon White House phrased his evil plans in bureaucracy-speak that made kidnapping to black sites ("rendition"), torture ("enhanced interrogation") and military aggression sound boring and patriotic.

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

zmesh 1.13.1

- Fixes bug in new opt-in marching cubes algorithm

https://t.co/sznPj02QOF

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

On my little test volumes, it looks to be about 30% faster.

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

zmesh 1.14.0

- New "preserve_order=False" flag for mesh that allows a faster multivalued marching cubes algorithm to run but changes the order of vertices/faces so naive == checks between new and old meshes may be false.

https://t.co/sznPj02QOF

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

crackle-codec 0.40.0

- increased decompression speed

https://t.co/sPEvE9lOlf

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

crackle-codec 0.38.0

- Guard to prevent rencoding a format 0 volume (there's a bug that can cause data corruption) All new volumes for over a year are format version 1.
- Faster decompression

https://t.co/sPEvE9lOlf

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

Connected Components 3d 3.27.0

- Faster algorithm for 2D 8-connected binary images
- Fixes bug in periodic boundary for 2D 8-connected

https://t.co/ZMUrQ27OY3

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

crackle-codec 0.37.0

- Adds range queries to check if a segid between low and high is in a dataset

https://t.co/sPEvE9lOlf

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

igneous-pipeline 4.36.0

- More efficient multires mesh processing
- More aggressive multires decimation
- JPEG/JXL lossless conversions
- Faster CLI

https://t.co/oej92GrVkl

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

CloudVolume 12.13.0

- Fixes bug in skeletons (thanks Tri for the bug report)
- Faster LRU when lru_encoding is "raw" (thanks Dodam for the PR)
- Faster PSQL spatial index (thanks Ran for the PR)

https://t.co/LN4ZT4qjRT

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

microviewer 1.21.0

- Adds screenshot from canvas (jpg, png, webp)

https://t.co/ZMNUrmIR2F

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

fastremap 1.18.0

- Adds is_solid(arr, value), which is a short circuiting routine for checking if the array is all one value. This avoids the issue with np.all (no short circuit + a copy) and np.array_equal (which doesn't admit an integer argument)

https://t.co/KH1U5cy0Gb

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

CloudVolume 12.12.0

- Fixes bug in setting cache encoding
- Adds function for inserting a new mesh into an existing multires mesh shard
- Adds Mesh.from_trimesh, save, load

https://t.co/LN4ZT4qjRT

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

zmesh 1.11.0

- Adds memory optimized non-topology preserving option based on pyfqmr.

https://t.co/sznPj02QOF

[🌩️🌩️🌩️ Thunder Cloud Volume 🌩️🌩️🌩️ @thundercloudvol]

igneous-pipeline 4.35.0

- Improvements and fixes to meshing, skeletonization, cross section analysis, downsampling, encoding defaults, deployment defaults

https://t.co/oej92GrVkl