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SNT: Manual

335 bytes removed, 18:29, 10 June 2019
Auto-tracing
Other options are also available in the ''gear'' drop-down menu:
* '''Cache All Hessian Cached Computations(Main Image)''' By default SNT computes the Hessian matrix on a "compute-as-you-go" basis, which saves memory but increases the pathfinding time. If you have enough RAM, you can use this option set of options to compute once the matrix and once for the full image and cache the result, which in certain cases, can lead to almost-instantaneous searches. Note that this computation adopts the current values of sigma and max. reported in the widget, so you should adjust those before running this command. 
* '''Flush Cached Data''' Removes cached data from memory
* '''Load Precomputed "Tubeness Image"''' This (advanced) option prompts you to load a file of a ''Tubeness image'' generated elsewhere. This is useful if e.g., you want o experiment algorithms from other software packages, or your own. Note that loaded image is assumed to have compatible dimensions with the image currently being traced.
* '''Show Cached "Tubeness Image"''' Displays the ''Tubeness'' data currently cached. Useful for debugging purposes. Also mirrored in {{bc | View | Show Cached/Loaded Hessian (Tubeness) Image}}.
[[File:original-hessian-side-by-side.png|center|thumb|400px|OP_1 "Tubeness" image overlay at 80% opacity]]
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