data_model
Data configuration.
Float = Annotated[float, PlainSerializer(np_float_to_scientific_str, return_type=str)]
module-attribute
#
Annotated float type, used to serialize floats to strings.
DataConfig
#
Bases: BaseModel
Data configuration.
If std is specified, mean must be specified as well. Note that setting the std first and then the mean (if they were both None
before) will raise a validation error. Prefer instead set_mean_and_std
to set both at once. Means and stds are expected to be lists of floats, one for each channel. For supervised tasks, the mean and std of the target could be different from the input data.
All supported transforms are defined in the SupportedTransform enum.
Examples:
Minimum example:
>>> data = DataConfig(
... data_type="array", # defined in SupportedData
... patch_size=[128, 128],
... batch_size=4,
... axes="YX"
... )
To change the image_means and image_stds of the data:
One can pass also a list of transformations, by keyword, using the SupportedTransform value:
>>> from careamics.config.support import SupportedTransform
>>> data = DataConfig(
... data_type="tiff",
... patch_size=[128, 128],
... batch_size=4,
... axes="YX",
... transforms=[
... {
... "name": "XYFlip",
... }
... ]
... )
Source code in src/careamics/config/data_model.py
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|
axes: str
instance-attribute
#
Axes of the data, as defined in SupportedAxes.
batch_size: int = Field(default=1, ge=1, validate_default=True)
class-attribute
instance-attribute
#
Batch size for training.
data_type: Literal['array', 'tiff', 'custom']
instance-attribute
#
Type of input data, numpy.ndarray (array) or paths (tiff and custom), as defined in SupportedData.
dataloader_params: Optional[dict] = None
class-attribute
instance-attribute
#
Dictionary of PyTorch dataloader parameters.
image_means: Optional[list[Float]] = Field(default=None, min_length=0, max_length=32)
class-attribute
instance-attribute
#
Means of the data across channels, used for normalization.
image_stds: Optional[list[Float]] = Field(default=None, min_length=0, max_length=32)
class-attribute
instance-attribute
#
Standard deviations of the data across channels, used for normalization.
patch_size: Union[list[int]] = Field(..., min_length=2, max_length=3)
class-attribute
instance-attribute
#
Patch size, as used during training.
target_means: Optional[list[Float]] = Field(default=None, min_length=0, max_length=32)
class-attribute
instance-attribute
#
Means of the target data across channels, used for normalization.
target_stds: Optional[list[Float]] = Field(default=None, min_length=0, max_length=32)
class-attribute
instance-attribute
#
Standard deviations of the target data across channels, used for normalization.
transforms: list[TRANSFORMS_UNION] = Field(default=[{'name': SupportedTransform.XY_FLIP.value}, {'name': SupportedTransform.XY_RANDOM_ROTATE90.value}, {'name': SupportedTransform.N2V_MANIPULATE.value}], validate_default=True)
class-attribute
instance-attribute
#
List of transformations to apply to the data, available transforms are defined in SupportedTransform. The default values are set for Noise2Void.
__str__()
#
Pretty string reprensenting the configuration.
Returns:
Type | Description |
---|---|
str | Pretty string. |
add_n2v_manipulate()
#
Add N2VManipulate to the transforms.
all_elements_power_of_2_minimum_8(patch_list)
classmethod
#
Validate patch size.
Patch size must be powers of 2 and minimum 8.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
patch_list | list of int | Patch size. | required |
Returns:
Type | Description |
---|---|
list of int | Validated patch size. |
Raises:
Type | Description |
---|---|
ValueError | If the patch size is smaller than 8. |
ValueError | If the patch size is not a power of 2. |
Source code in src/careamics/config/data_model.py
axes_valid(axes)
classmethod
#
Validate axes.
Axes must: - be a combination of 'STCZYX' - not contain duplicates - contain at least 2 contiguous axes: X and Y - contain at most 4 axes - not contain both S and T axes
Parameters:
Name | Type | Description | Default |
---|---|---|---|
axes | str | Axes to validate. | required |
Returns:
Type | Description |
---|---|
str | Validated axes. |
Raises:
Type | Description |
---|---|
ValueError | If axes are not valid. |
Source code in src/careamics/config/data_model.py
has_n2v_manipulate()
#
Check if the transforms contain N2VManipulate.
Returns:
Type | Description |
---|---|
bool | True if the transforms contain N2VManipulate, False otherwise. |
Source code in src/careamics/config/data_model.py
remove_n2v_manipulate()
#
set_3D(axes, patch_size)
#
Set 3D parameters.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
axes | str | Axes. | required |
patch_size | list of int | Patch size. | required |
Source code in src/careamics/config/data_model.py
set_N2V2(use_n2v2)
#
Set N2V2.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
use_n2v2 | bool | Whether to use N2V2. | required |
Raises:
Type | Description |
---|---|
ValueError | If the N2V pixel manipulate transform is not found in the transforms. |
Source code in src/careamics/config/data_model.py
set_N2V2_strategy(strategy)
#
Set N2V2 strategy.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
strategy | Literal['uniform', 'median'] | Strategy to use for N2V2. | required |
Raises:
Type | Description |
---|---|
ValueError | If the N2V pixel manipulate transform is not found in the transforms. |
Source code in src/careamics/config/data_model.py
set_means_and_stds(image_means, image_stds, target_means=None, target_stds=None)
#
Set mean and standard deviation of the data across channels.
This method should be used instead setting the fields directly, as it would otherwise trigger a validation error.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
image_means | (ndarray, tuple or list) | Mean values for normalization. | required |
image_stds | (ndarray, tuple or list) | Standard deviation values for normalization. | required |
target_means | (ndarray, tuple or list) | Target mean values for normalization, by default (). | None |
target_stds | (ndarray, tuple or list) | Target standard deviation values for normalization, by default (). | None |
Source code in src/careamics/config/data_model.py
set_structN2V_mask(mask_axis, mask_span)
#
Set structN2V mask parameters.
Setting mask_axis
to none
will disable structN2V.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
mask_axis | Literal['horizontal', 'vertical', 'none'] | Axis along which to apply the mask. | required |
mask_span | int | Total span of the mask in pixels. | required |
Raises:
Type | Description |
---|---|
ValueError | If the N2V pixel manipulate transform is not found in the transforms. |
Source code in src/careamics/config/data_model.py
std_only_with_mean()
#
Check that mean and std are either both None, or both specified.
Returns:
Type | Description |
---|---|
Self | Validated data model. |
Raises:
Type | Description |
---|---|
ValueError | If std is not None and mean is None. |
Source code in src/careamics/config/data_model.py
validate_dimensions()
#
Validate 2D/3D dimensions between axes, patch size and transforms.
Returns:
Type | Description |
---|---|
Self | Validated data model. |
Raises:
Type | Description |
---|---|
ValueError | If the transforms are not valid. |
Source code in src/careamics/config/data_model.py
validate_prediction_transforms(transforms)
classmethod
#
Validate N2VManipulate transform position in the transform list.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
transforms | list[Transformations_Union] | Transforms. | required |
Returns:
Type | Description |
---|---|
list of transforms | Validated transforms. |
Raises:
Type | Description |
---|---|
ValueError | If multiple instances of N2VManipulate are found. |
Source code in src/careamics/config/data_model.py
np_float_to_scientific_str(x)
#
Return a string scientific representation of a float.
In particular, this method is used to serialize floats to strings, allowing numpy.float32 to be passed in the Pydantic model and written to a yaml file as str.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
x | float | Input value. | required |
Returns:
Type | Description |
---|---|
str | Scientific string representation of the input value. |