Mnist (Deep Java Library 0.17.0 - basicdataset API)

java.lang.Object
- ai.djl.training.dataset.RandomAccessDataset
- - ai.djl.training.dataset.ArrayDataset
  - - ai.djl.basicdataset.cv.classification.Mnist

All Implemented Interfaces:

ai.djl.training.dataset.Dataset
```
public final class Mnist
extends ai.djl.training.dataset.ArrayDataset
```
MNIST handwritten digits dataset from http://yann.lecun.com/exdb/mnist.
Each sample is an image (in 3-D NDArray) with shape (28, 28, 1).

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class Mnist.Builder
A builder for a Mnist.
- Nested classes/interfaces inherited from class ai.djl.training.dataset.RandomAccessDataset
  ai.djl.training.dataset.RandomAccessDataset.BaseBuilder<T extends ai.djl.training.dataset.RandomAccessDataset.BaseBuilder<T>>
- Nested classes/interfaces inherited from interface ai.djl.training.dataset.Dataset
  ai.djl.training.dataset.Dataset.Usage

Field Summary

Fields
Modifier and Type Field Description

static int IMAGE_HEIGHT

static int IMAGE_WIDTH

static int NUM_CLASSES
- Fields inherited from class ai.djl.training.dataset.ArrayDataset
  data, labels
- Fields inherited from class ai.djl.training.dataset.RandomAccessDataset
  dataBatchifier, device, labelBatchifier, limit, pipeline, prefetchNumber, sampler, targetPipeline

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static Mnist.Builder`	`builder()`	Creates a builder to build a `Mnist`.
`void`	`prepare(ai.djl.util.Progress progress)`

Methods inherited from class ai.djl.training.dataset.ArrayDataset
availableSize, get

Methods inherited from class ai.djl.training.dataset.RandomAccessDataset
getData, getData, getData, getData, randomSplit, size, subDataset, toArray

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface ai.djl.training.dataset.Dataset
prepare

- Field Detail
  - IMAGE_WIDTH
```
public static final int IMAGE_WIDTH
```
    See Also:
    
    Constant Field Values
  - IMAGE_HEIGHT
```
public static final int IMAGE_HEIGHT
```
    See Also:
    
    Constant Field Values
  - NUM_CLASSES
```
public static final int NUM_CLASSES
```
    See Also:
    
    Constant Field Values
- Method Detail
  - builder
```
public static Mnist.Builder builder()
```
    Creates a builder to build a Mnist.
    
    Returns:
    
    a new builder
  - prepare
```
public void prepare(ai.djl.util.Progress progress)
             throws java.io.IOException
```
    Specified by:
    
    prepare in interface ai.djl.training.dataset.Dataset
    
    Overrides:
    
    prepare in class ai.djl.training.dataset.ArrayDataset
    
    Throws:
    
    java.io.IOException