| --- |
| license: cc-by-4.0 |
| task_categories: |
| - image-classification |
| - image-segmentation |
| tags: |
| - electron-microscopy |
| - 4D-STEM |
| - materials-science |
| - quantem |
| pretty_name: quantem-data |
| size_categories: |
| - 1K<n<10K |
| --- |
| |
| # quantem-data |
|
|
| Real electron microscopy datasets for [quantem.widget](https://github.com/bobleesj/quantem.widget) and [quantem](https://github.com/electronmicroscopy/quantem). |
|
|
| ## Install |
|
|
| ```bash |
| pip install quantem-data |
| ``` |
|
|
| ## Quick Start |
|
|
| ```python |
| from quantem.data import load |
| from quantem.widget import Show4DSTEM, Show2D |
| |
| # 4D-STEM dataset (9 MB, cached locally) |
| Show4DSTEM(load("srtio3_lamella"), scan_shape=(32, 32)) |
| |
| # Bright-field image |
| Show2D(load("srtio3_bf")) |
| ``` |
|
|
| ## Folder Structure |
|
|
| | Folder | Data type | quantem.widget | |
| |--------|-----------|----------------| |
| | `4dstem/` | 4D-STEM diffraction | Show4DSTEM, Show4D | |
| | `hrtem/` | High-resolution TEM | Show2D, Mark2D | |
| | `eels/` | Electron energy loss | Show1D | |
| | `tomo/` | Tomography | Show3DVolume | |
| | `diffraction/` | Diffraction patterns | Show2D | |
| | `image/` | Virtual/derived images | Show2D, Mark2D | |
| | `complex/` | Ptychography | ShowComplex2D | |
| | `raw/` | Original instrument files | — | |
|
|
| ## Metadata |
|
|
| Every `.npy` file has a paired `.json` sidecar with structured metadata (schema, shape, attribution, calibration). |
|
|
| ## Contributing |
|
|
| Upload via Python API or CLI. See [quantem.data docs](https://github.com/bobleesj/quantem.data). |
|
|
