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tono/docs/nodes/Save Layers.md

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Save Layers

Save one or more image/field layers to a single file. Each layer input accepts either a DATA_FIELD or an IMAGE, including annotated images. Use this for composing multi-channel stacks. Does not auto-run; click Save to write.

Inputs

Name Type Required Description
directory DIRECTORY No Optional directory path from a Folder node; overrides the directory_path widget
field_0 … field_N DATA_FIELD, IMAGE, or ANNOTATION_SOURCE No Layer inputs; a new slot appears as each one is filled

Outputs

None.

Controls

Name Type Default Description
filename STRING "" Output filename (without directory); used together with directory_path
directory_path FOLDER_PICKER "" Output directory; hidden when directory input is connected
format dropdown TIFF Output format: TIFF (multi-page, float32 for fields) or NPZ (named arrays)
layer_name_0 … layer_name_N STRING "" Optional name for each layer; used as TIFF page descriptions or NPZ array keys

Notes

  • At least one layer must be connected; an error is raised otherwise.
  • TIFF writes DATA_FIELD layers as float32; IMAGE layers are written as uint8.
  • NPZ keys are sanitized to valid Python identifiers; duplicate names are made unique with numeric suffixes.