Transformers documentation
TextNet
This model was published in HF papers on 2021-11-03 and contributed to Hugging Face Transformers on 2025-01-08.
TextNet
Overview
The TextNet model was proposed in FAST: Faster Arbitrarily-Shaped Text Detector with Minimalist Kernel Representation by Zhe Chen, Jiahao Wang, Wenhai Wang, Guo Chen, Enze Xie, Ping Luo, Tong Lu. TextNet is a vision backbone useful for text detection tasks. It is the result of neural architecture search (NAS) on backbones with reward function as text detection task (to provide powerful features for text detection).
TextNet backbone as part of FAST. Taken from the original paper. This model was contributed by Raghavan, jadechoghari and nielsr.
Usage tips
TextNet is mainly used as a backbone network for the architecture search of text detection. Each stage of the backbone network is comprised of a stride-2 convolution and searchable blocks. Specifically, we present a layer-level candidate set, defined as {conv3×3, conv1×3, conv3×1, identity}. As the 1×3 and 3×1 convolutions have asymmetric kernels and oriented structure priors, they may help to capture the features of extreme aspect-ratio and rotated text lines.
TextNet is the backbone for Fast, but can also be used as an efficient text/image classification, we add a TextNetForImageClassification as is it would allow people to train an image classifier on top of the pre-trained textnet weights
TextNetConfig
class transformers.TextNetConfig
< source >( transformers_version: str | None = Nonearchitectures: list[str] | None = Noneoutput_hidden_states: bool | None = Falsereturn_dict: bool | None = Truedtype: typing.Union[str, ForwardRef('torch.dtype'), NoneType] = Nonechunk_size_feed_forward: int = 0is_encoder_decoder: bool = Falseid2label: dict[int, str] | dict[str, str] | None = Nonelabel2id: dict[str, int] | dict[str, str] | None = Noneproblem_type: typing.Optional[typing.Literal['regression', 'single_label_classification', 'multi_label_classification']] = Nonestem_kernel_size: int = 3stem_stride: int = 2stem_num_channels: int = 3stem_out_channels: int = 64stem_act_func: str = 'relu'image_size: list[int] | tuple[int, int] | int = (640, 640)conv_layer_kernel_sizes: list | None = Noneconv_layer_strides: list | None = Nonehidden_sizes: list[int] | tuple[int, ...] = (64, 64, 128, 256, 512)batch_norm_eps: float = 1e-05initializer_range: float = 0.02_out_features: list[str] | None = None_out_indices: list[int] | None = None )
Parameters
- stem_kernel_size (
int, optional, defaults to 3) — The kernel size for the initial convolution layer. - stem_stride (
int, optional, defaults to 2) — The stride for the initial convolution layer. - stem_num_channels (
int, optional, defaults to 3) — The num of channels in input for the initial convolution layer. - stem_out_channels (
int, optional, defaults to 64) — The num of channels in out for the initial convolution layer. - stem_act_func (
str, optional, defaults to"relu") — The activation function for the initial convolution layer. - image_size (
Union[list[int], tuple[int, int], int], optional, defaults to(640, 640)) — The size (resolution) of each image. - conv_layer_kernel_sizes (
list[list[list[int]]], optional) — A list of stage-wise kernel sizes. IfNone, defaults to:[[[3, 3], [3, 3], [3, 3]], [[3, 3], [1, 3], [3, 3], [3, 1]], [[3, 3], [3, 3], [3, 1], [1, 3]], [[3, 3], [3, 1], [1, 3], [3, 3]]]. - conv_layer_strides (
list[list[int]], optional) — A list of stage-wise strides. IfNone, defaults to:[[1, 2, 1], [2, 1, 1, 1], [2, 1, 1, 1], [2, 1, 1, 1]]. - hidden_sizes (
Union[list[int], tuple[int, ...]], optional, defaults to(64, 64, 128, 256, 512)) — Dimensionality (hidden size) at each stage of the model. - batch_norm_eps (
float, optional, defaults to1e-05) — The epsilon used by the batch normalization layers. - initializer_range (
float, optional, defaults to0.02) — The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
This is the configuration class to store the configuration of a TextNetModel. It is used to instantiate a Textnet model according to the specified arguments, defining the model architecture. Instantiating a configuration with the defaults will yield a similar configuration to that of the czczup/textnet-base
Configuration objects inherit from PreTrainedConfig and can be used to control the model outputs. Read the documentation from PreTrainedConfig for more information.
Examples:
>>> from transformers import TextNetConfig, TextNetBackbone
>>> # Initializing a TextNetConfig
>>> configuration = TextNetConfig()
>>> # Initializing a model (with random weights)
>>> model = TextNetBackbone(configuration)
>>> # Accessing the model configuration
>>> configuration = model.configTextNetImageProcessor
class transformers.TextNetImageProcessor
< source >( **kwargs: Unpack )
Parameters
- do_convert_rgb (
bool, kwargs, optional, defaults toTrue) — Whether to convert the image to RGB. - do_resize (
bool, kwargs, optional, defaults toTrue) — Whether to resize the image. - size (
Annotated[int | list[int] | tuple[int, ...] | dict[str, int] | None, None], kwargs, defaults to{'shortest_edge' -- 640}): Describes the maximum input dimensions to the model. - default_to_square (
bool, kwargs, optional, defaults toFalse) — Whether to default to a square image when resizing, if size is an int. - crop_size (
Annotated[int | list[int] | tuple[int, ...] | dict[str, int] | None, None], kwargs, defaults to{'height' -- 224, 'width': 224}): Size of the output image after applyingcenter_crop. - resample (
Annotated[Union[int, PILImageResampling, NoneType], None], kwargs, defaults toResampling.BILINEAR) — Resampling filter to use if resizing the image. This can be one of the enumPILImageResampling. Only has an effect ifdo_resizeis set toTrue. - do_rescale (
bool, kwargs, optional, defaults toTrue) — Whether to rescale the image. - rescale_factor (
float, kwargs, optional, defaults to0.00392156862745098) — Rescale factor to rescale the image by ifdo_rescaleis set toTrue. - do_normalize (
bool, kwargs, optional, defaults toTrue) — Whether to normalize the image. - image_mean (
Union[float, list[float], tuple[float, ...]], kwargs, optional, defaults to[0.485, 0.456, 0.406]) — Image mean to use for normalization. Only has an effect ifdo_normalizeis set toTrue. - image_std (
Union[float, list[float], tuple[float, ...]], kwargs, optional, defaults to[0.229, 0.224, 0.225]) — Image standard deviation to use for normalization. Only has an effect ifdo_normalizeis set toTrue. - do_pad (
bool, kwargs, optional) — Whether to pad the image. Padding is done either to the largest size in the batch or to a fixed square size per image. The exact padding strategy depends on the model. - pad_size (
Annotated[int | list[int] | tuple[int, ...] | dict[str, int] | None, None], kwargs) — The size in{"height": int, "width" int}to pad the images to. Must be larger than any image size provided for preprocessing. Ifpad_sizeis not provided, images will be padded to the largest height and width in the batch. Applied only whendo_pad=True. - do_center_crop (
bool, kwargs, optional, defaults toFalse) — Whether to center crop the image. - data_format (
Union[str, ~image_utils.ChannelDimension], kwargs, optional) — OnlyChannelDimension.FIRSTis supported. Added for compatibility with slow processors. - input_data_format (
Union[str, ~image_utils.ChannelDimension], kwargs, optional) — The channel dimension format for the input image. If unset, the channel dimension format is inferred from the input image. Can be one of:"channels_first"orChannelDimension.FIRST: image in (num_channels, height, width) format."channels_last"orChannelDimension.LAST: image in (height, width, num_channels) format."none"orChannelDimension.NONE: image in (height, width) format.
- device (
Annotated[Union[str, torch.device, NoneType], None], kwargs) — The device to process the videos on. If unset, the device is inferred from the input videos. - return_tensors (
Annotated[str | ~utils.generic.TensorType | None, None], kwargs) — Returns stacked tensors if set to'pt', otherwise returns a list of tensors. - disable_grouping (
bool, kwargs, optional) — Whether to disable grouping of images by size to process them individually and not in batches. If None, will be set to True if the images are on CPU, and False otherwise. This choice is based on empirical observations, as detailed here: https://github.com/huggingface/transformers/pull/38157 - image_seq_length (
int, kwargs, optional) — The number of image tokens to be used for each image in the input. Added for backward compatibility but this should be set as a processor attribute in future models. - size_divisor (
int, kwargs, optional, defaults toself.size_divisor) — Ensures height and width are rounded to a multiple of this value after resizing.
Constructs a TextNetImageProcessor image processor.
preprocess
< source >( images: typing.Union[ForwardRef('PIL.Image.Image'), numpy.ndarray, ForwardRef('torch.Tensor'), list['PIL.Image.Image'], list[numpy.ndarray], list['torch.Tensor']]**kwargs: Unpack ) → ~image_processing_base.BatchFeature
Parameters
- images (
Union[PIL.Image.Image, numpy.ndarray, torch.Tensor, list[PIL.Image.Image], list[numpy.ndarray], list[torch.Tensor]]) — Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If passing in images with pixel values between 0 and 1, setdo_rescale=False. - do_convert_rgb (
bool, kwargs, optional) — Whether to convert the image to RGB. - do_resize (
bool, kwargs, optional) — Whether to resize the image. - size (
Annotated[int | list[int] | tuple[int, ...] | dict[str, int] | None, None], kwargs) — Describes the maximum input dimensions to the model. - default_to_square (
bool, kwargs, optional) — Whether to default to a square image when resizing, if size is an int. - crop_size (
Annotated[int | list[int] | tuple[int, ...] | dict[str, int] | None, None], kwargs) — Size of the output image after applyingcenter_crop. - resample (
Annotated[Union[int, PILImageResampling, NoneType], None], kwargs) — Resampling filter to use if resizing the image. This can be one of the enumPILImageResampling. Only has an effect ifdo_resizeis set toTrue. - do_rescale (
bool, kwargs, optional) — Whether to rescale the image. - rescale_factor (
float, kwargs, optional) — Rescale factor to rescale the image by ifdo_rescaleis set toTrue. - do_normalize (
bool, kwargs, optional) — Whether to normalize the image. - image_mean (
Union[float, list[float], tuple[float, ...]], kwargs, optional) — Image mean to use for normalization. Only has an effect ifdo_normalizeis set toTrue. - image_std (
Union[float, list[float], tuple[float, ...]], kwargs, optional) — Image standard deviation to use for normalization. Only has an effect ifdo_normalizeis set toTrue. - do_pad (
bool, kwargs, optional) — Whether to pad the image. Padding is done either to the largest size in the batch or to a fixed square size per image. The exact padding strategy depends on the model. - pad_size (
Annotated[int | list[int] | tuple[int, ...] | dict[str, int] | None, None], kwargs) — The size in{"height": int, "width" int}to pad the images to. Must be larger than any image size provided for preprocessing. Ifpad_sizeis not provided, images will be padded to the largest height and width in the batch. Applied only whendo_pad=True. - do_center_crop (
bool, kwargs, optional) — Whether to center crop the image. - data_format (
Union[str, ~image_utils.ChannelDimension], kwargs, optional) — OnlyChannelDimension.FIRSTis supported. Added for compatibility with slow processors. - input_data_format (
Union[str, ~image_utils.ChannelDimension], kwargs, optional) — The channel dimension format for the input image. If unset, the channel dimension format is inferred from the input image. Can be one of:"channels_first"orChannelDimension.FIRST: image in (num_channels, height, width) format."channels_last"orChannelDimension.LAST: image in (height, width, num_channels) format."none"orChannelDimension.NONE: image in (height, width) format.
- device (
Annotated[Union[str, torch.device, NoneType], None], kwargs) — The device to process the videos on. If unset, the device is inferred from the input videos. - return_tensors (
Annotated[str | ~utils.generic.TensorType | None, None], kwargs) — Returns stacked tensors if set to'pt', otherwise returns a list of tensors. - disable_grouping (
bool, kwargs, optional) — Whether to disable grouping of images by size to process them individually and not in batches. If None, will be set to True if the images are on CPU, and False otherwise. This choice is based on empirical observations, as detailed here: https://github.com/huggingface/transformers/pull/38157 - image_seq_length (
int, kwargs, optional) — The number of image tokens to be used for each image in the input. Added for backward compatibility but this should be set as a processor attribute in future models. - size_divisor (
int, kwargs, optional, defaults toself.size_divisor) — Ensures height and width are rounded to a multiple of this value after resizing.
Returns
~image_processing_base.BatchFeature
- data (
dict) — Dictionary of lists/arrays/tensors returned by the call method (‘pixel_values’, etc.). - tensor_type (
Union[None, str, TensorType], optional) — You can give a tensor_type here to convert the lists of integers in PyTorch/Numpy Tensors at initialization.
TextNetImageProcessorPil
class transformers.TextNetImageProcessorPil
< source >( **kwargs: Unpack )
Parameters
- do_convert_rgb (
bool, kwargs, optional, defaults toTrue) — Whether to convert the image to RGB. - do_resize (
bool, kwargs, optional, defaults toTrue) — Whether to resize the image. - size (
Annotated[int | list[int] | tuple[int, ...] | dict[str, int] | None, None], kwargs, defaults to{'shortest_edge' -- 640}): Describes the maximum input dimensions to the model. - default_to_square (
bool, kwargs, optional, defaults toFalse) — Whether to default to a square image when resizing, if size is an int. - crop_size (
Annotated[int | list[int] | tuple[int, ...] | dict[str, int] | None, None], kwargs, defaults to{'height' -- 224, 'width': 224}): Size of the output image after applyingcenter_crop. - resample (
Annotated[Union[int, PILImageResampling, NoneType], None], kwargs, defaults toResampling.BILINEAR) — Resampling filter to use if resizing the image. This can be one of the enumPILImageResampling. Only has an effect ifdo_resizeis set toTrue. - do_rescale (
bool, kwargs, optional, defaults toTrue) — Whether to rescale the image. - rescale_factor (
float, kwargs, optional, defaults to0.00392156862745098) — Rescale factor to rescale the image by ifdo_rescaleis set toTrue. - do_normalize (
bool, kwargs, optional, defaults toTrue) — Whether to normalize the image. - image_mean (
Union[float, list[float], tuple[float, ...]], kwargs, optional, defaults to[0.485, 0.456, 0.406]) — Image mean to use for normalization. Only has an effect ifdo_normalizeis set toTrue. - image_std (
Union[float, list[float], tuple[float, ...]], kwargs, optional, defaults to[0.229, 0.224, 0.225]) — Image standard deviation to use for normalization. Only has an effect ifdo_normalizeis set toTrue. - do_pad (
bool, kwargs, optional) — Whether to pad the image. Padding is done either to the largest size in the batch or to a fixed square size per image. The exact padding strategy depends on the model. - pad_size (
Annotated[int | list[int] | tuple[int, ...] | dict[str, int] | None, None], kwargs) — The size in{"height": int, "width" int}to pad the images to. Must be larger than any image size provided for preprocessing. Ifpad_sizeis not provided, images will be padded to the largest height and width in the batch. Applied only whendo_pad=True. - do_center_crop (
bool, kwargs, optional, defaults toFalse) — Whether to center crop the image. - data_format (
Union[str, ~image_utils.ChannelDimension], kwargs, optional) — OnlyChannelDimension.FIRSTis supported. Added for compatibility with slow processors. - input_data_format (
Union[str, ~image_utils.ChannelDimension], kwargs, optional) — The channel dimension format for the input image. If unset, the channel dimension format is inferred from the input image. Can be one of:"channels_first"orChannelDimension.FIRST: image in (num_channels, height, width) format."channels_last"orChannelDimension.LAST: image in (height, width, num_channels) format."none"orChannelDimension.NONE: image in (height, width) format.
- device (
Annotated[Union[str, torch.device, NoneType], None], kwargs) — The device to process the videos on. If unset, the device is inferred from the input videos. - return_tensors (
Annotated[str | ~utils.generic.TensorType | None, None], kwargs) — Returns stacked tensors if set to'pt', otherwise returns a list of tensors. - disable_grouping (
bool, kwargs, optional) — Whether to disable grouping of images by size to process them individually and not in batches. If None, will be set to True if the images are on CPU, and False otherwise. This choice is based on empirical observations, as detailed here: https://github.com/huggingface/transformers/pull/38157 - image_seq_length (
int, kwargs, optional) — The number of image tokens to be used for each image in the input. Added for backward compatibility but this should be set as a processor attribute in future models. - size_divisor (
int, kwargs, optional, defaults toself.size_divisor) — Ensures height and width are rounded to a multiple of this value after resizing.
Constructs a TextNetImageProcessor image processor.
preprocess
< source >( images: typing.Union[ForwardRef('PIL.Image.Image'), numpy.ndarray, ForwardRef('torch.Tensor'), list['PIL.Image.Image'], list[numpy.ndarray], list['torch.Tensor']]**kwargs: Unpack ) → ~image_processing_base.BatchFeature
Parameters
- images (
Union[PIL.Image.Image, numpy.ndarray, torch.Tensor, list[PIL.Image.Image], list[numpy.ndarray], list[torch.Tensor]]) — Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If passing in images with pixel values between 0 and 1, setdo_rescale=False. - do_convert_rgb (
bool, kwargs, optional) — Whether to convert the image to RGB. - do_resize (
bool, kwargs, optional) — Whether to resize the image. - size (
Annotated[int | list[int] | tuple[int, ...] | dict[str, int] | None, None], kwargs) — Describes the maximum input dimensions to the model. - default_to_square (
bool, kwargs, optional) — Whether to default to a square image when resizing, if size is an int. - crop_size (
Annotated[int | list[int] | tuple[int, ...] | dict[str, int] | None, None], kwargs) — Size of the output image after applyingcenter_crop. - resample (
Annotated[Union[int, PILImageResampling, NoneType], None], kwargs) — Resampling filter to use if resizing the image. This can be one of the enumPILImageResampling. Only has an effect ifdo_resizeis set toTrue. - do_rescale (
bool, kwargs, optional) — Whether to rescale the image. - rescale_factor (
float, kwargs, optional) — Rescale factor to rescale the image by ifdo_rescaleis set toTrue. - do_normalize (
bool, kwargs, optional) — Whether to normalize the image. - image_mean (
Union[float, list[float], tuple[float, ...]], kwargs, optional) — Image mean to use for normalization. Only has an effect ifdo_normalizeis set toTrue. - image_std (
Union[float, list[float], tuple[float, ...]], kwargs, optional) — Image standard deviation to use for normalization. Only has an effect ifdo_normalizeis set toTrue. - do_pad (
bool, kwargs, optional) — Whether to pad the image. Padding is done either to the largest size in the batch or to a fixed square size per image. The exact padding strategy depends on the model. - pad_size (
Annotated[int | list[int] | tuple[int, ...] | dict[str, int] | None, None], kwargs) — The size in{"height": int, "width" int}to pad the images to. Must be larger than any image size provided for preprocessing. Ifpad_sizeis not provided, images will be padded to the largest height and width in the batch. Applied only whendo_pad=True. - do_center_crop (
bool, kwargs, optional) — Whether to center crop the image. - data_format (
Union[str, ~image_utils.ChannelDimension], kwargs, optional) — OnlyChannelDimension.FIRSTis supported. Added for compatibility with slow processors. - input_data_format (
Union[str, ~image_utils.ChannelDimension], kwargs, optional) — The channel dimension format for the input image. If unset, the channel dimension format is inferred from the input image. Can be one of:"channels_first"orChannelDimension.FIRST: image in (num_channels, height, width) format."channels_last"orChannelDimension.LAST: image in (height, width, num_channels) format."none"orChannelDimension.NONE: image in (height, width) format.
- device (
Annotated[Union[str, torch.device, NoneType], None], kwargs) — The device to process the videos on. If unset, the device is inferred from the input videos. - return_tensors (
Annotated[str | ~utils.generic.TensorType | None, None], kwargs) — Returns stacked tensors if set to'pt', otherwise returns a list of tensors. - disable_grouping (
bool, kwargs, optional) — Whether to disable grouping of images by size to process them individually and not in batches. If None, will be set to True if the images are on CPU, and False otherwise. This choice is based on empirical observations, as detailed here: https://github.com/huggingface/transformers/pull/38157 - image_seq_length (
int, kwargs, optional) — The number of image tokens to be used for each image in the input. Added for backward compatibility but this should be set as a processor attribute in future models. - size_divisor (
int, kwargs, optional, defaults toself.size_divisor) — Ensures height and width are rounded to a multiple of this value after resizing.
Returns
~image_processing_base.BatchFeature
- data (
dict) — Dictionary of lists/arrays/tensors returned by the call method (‘pixel_values’, etc.). - tensor_type (
Union[None, str, TensorType], optional) — You can give a tensor_type here to convert the lists of integers in PyTorch/Numpy Tensors at initialization.
TextNetModel
class transformers.TextNetModel
< source >( config )
Parameters
- config (TextNetModel) — Model configuration class with all the parameters of the model. Initializing with a config file does not load the weights associated with the model, only the configuration. Check out the from_pretrained() method to load the model weights.
The bare Textnet Model outputting raw hidden-states without any specific head on top.
This model inherits from PreTrainedModel. Check the superclass documentation for the generic methods the library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads etc.)
This model is also a PyTorch torch.nn.Module subclass. Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and behavior.
forward
< source >( pixel_values: Tensoroutput_hidden_states: bool | None = Nonereturn_dict: bool | None = None**kwargs ) → BaseModelOutputWithPoolingAndNoAttention or tuple(torch.FloatTensor)
Parameters
- pixel_values (
torch.Tensorof shape(batch_size, num_channels, image_size, image_size)) — The tensors corresponding to the input images. Pixel values can be obtained using TextNetImageProcessor. SeeTextNetImageProcessor.__call__()for details (processor_classuses TextNetImageProcessor for processing images). - output_hidden_states (
bool, optional) — Whether or not to return the hidden states of all layers. Seehidden_statesunder returned tensors for more detail. - return_dict (
bool, optional) — Whether or not to return a ModelOutput instead of a plain tuple.
Returns
BaseModelOutputWithPoolingAndNoAttention or tuple(torch.FloatTensor)
A BaseModelOutputWithPoolingAndNoAttention or a tuple of
torch.FloatTensor (if return_dict=False is passed or when config.return_dict=False) comprising various
elements depending on the configuration (TextNetConfig) and inputs.
The TextNetModel forward method, overrides the __call__ special method.
Although the recipe for forward pass needs to be defined within this function, one should call the
Moduleinstance afterwards instead of this since the former takes care of running the pre and post processing steps while the latter silently ignores them.
last_hidden_state (
torch.FloatTensorof shape(batch_size, num_channels, height, width)) — Sequence of hidden-states at the output of the last layer of the model.pooler_output (
torch.FloatTensorof shape(batch_size, hidden_size)) — Last layer hidden-state after a pooling operation on the spatial dimensions.hidden_states (
tuple(torch.FloatTensor), optional, returned whenoutput_hidden_states=Trueis passed or whenconfig.output_hidden_states=True) — Tuple oftorch.FloatTensor(one for the output of the embeddings, if the model has an embedding layer, + one for the output of each layer) of shape(batch_size, num_channels, height, width).Hidden-states of the model at the output of each layer plus the optional initial embedding outputs.
TextNetForImageClassification
class transformers.TextNetForImageClassification
< source >( config )
Parameters
- config (TextNetForImageClassification) — Model configuration class with all the parameters of the model. Initializing with a config file does not load the weights associated with the model, only the configuration. Check out the from_pretrained() method to load the model weights.
TextNet Model with an image classification head on top (a linear layer on top of the pooled features), e.g. for ImageNet.
This model inherits from PreTrainedModel. Check the superclass documentation for the generic methods the library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads etc.)
This model is also a PyTorch torch.nn.Module subclass. Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and behavior.
forward
< source >( pixel_values: typing.Optional[torch.FloatTensor] = Nonelabels: typing.Optional[torch.LongTensor] = Noneoutput_hidden_states: bool | None = Nonereturn_dict: bool | None = None**kwargs ) → ImageClassifierOutputWithNoAttention or tuple(torch.FloatTensor)
Parameters
- pixel_values (
torch.FloatTensorof shape(batch_size, num_channels, image_size, image_size), optional) — The tensors corresponding to the input images. Pixel values can be obtained using TextNetImageProcessor. SeeTextNetImageProcessor.__call__()for details (processor_classuses TextNetImageProcessor for processing images). - labels (
torch.LongTensorof shape(batch_size,), optional) — Labels for computing the image classification/regression loss. Indices should be in[0, ..., config.num_labels - 1]. Ifconfig.num_labels == 1a regression loss is computed (Mean-Square loss), Ifconfig.num_labels > 1a classification loss is computed (Cross-Entropy). - output_hidden_states (
bool, optional) — Whether or not to return the hidden states of all layers. Seehidden_statesunder returned tensors for more detail. - return_dict (
bool, optional) — Whether or not to return a ModelOutput instead of a plain tuple.
Returns
ImageClassifierOutputWithNoAttention or tuple(torch.FloatTensor)
A ImageClassifierOutputWithNoAttention or a tuple of
torch.FloatTensor (if return_dict=False is passed or when config.return_dict=False) comprising various
elements depending on the configuration (TextNetConfig) and inputs.
The TextNetForImageClassification forward method, overrides the __call__ special method.
Although the recipe for forward pass needs to be defined within this function, one should call the
Moduleinstance afterwards instead of this since the former takes care of running the pre and post processing steps while the latter silently ignores them.
- loss (
torch.FloatTensorof shape(1,), optional, returned whenlabelsis provided) — Classification (or regression if config.num_labels==1) loss. - logits (
torch.FloatTensorof shape(batch_size, config.num_labels)) — Classification (or regression if config.num_labels==1) scores (before SoftMax). - hidden_states (
tuple(torch.FloatTensor), optional, returned whenoutput_hidden_states=Trueis passed or whenconfig.output_hidden_states=True) — Tuple oftorch.FloatTensor(one for the output of the embeddings, if the model has an embedding layer, + one for the output of each stage) of shape(batch_size, num_channels, height, width). Hidden-states (also called feature maps) of the model at the output of each stage.
Examples:
>>> import torch
>>> import httpx
>>> from io import BytesIO
>>> from transformers import TextNetForImageClassification, TextNetImageProcessor
>>> from PIL import Image
>>> url = "http://images.cocodataset.org/val2017/000000039769.jpg"
>>> with httpx.stream("GET", url) as response:
... image = Image.open(BytesIO(response.read()))
>>> processor = TextNetImageProcessor.from_pretrained("czczup/textnet-base")
>>> model = TextNetForImageClassification.from_pretrained("czczup/textnet-base")
>>> inputs = processor(images=image, return_tensors="pt")
>>> with torch.no_grad():
... outputs = model(**inputs)
>>> outputs.logits.shape
torch.Size([1, 2])