The following dataset contains the MNIST dataset in stroke/point form. The data in this repository was based on the data obtained from the following project: https://github.com/edwin-de-jong/mnist-digits-stroke-sequence-data
The data is supplied in the JSON format and contained in the strokes directory. Each file follows the following format: sample-<digit>-<sample-number>.json.
For example, in the file: sample-3-1970.json:
{
"count":2,
"instance":1970,
"digit":"3",
"strokes":[
[
{
"y":5,
"x":12
},
{
"y":6,
"x":13
},
{
"y":6,
"x":14
},
{
"y":6,
"x":15
},
{
"y":6,
"x":16
},
{
"y":7,
"x":17
},
{
"y":8,
"x":17
},
{
"y":9,
"x":16
},
{
"y":10,
"x":16
},
{
"y":11,
"x":16
},
{
"y":12,
"x":16
},
{
"y":12,
"x":15
},
{
"y":12,
"x":14
},
{
"y":12,
"x":13
},
{
"y":13,
"x":12
},
{
"y":13,
"x":12
}
],
[
{
"y":13,
"x":17
},
{
"y":13,
"x":18
},
{
"y":13,
"x":19
},
{
"y":14,
"x":19
},
{
"y":15,
"x":19
},
{
"y":16,
"x":19
},
{
"y":17,
"x":19
},
{
"y":18,
"x":19
},
{
"y":19,
"x":18
},
{
"y":20,
"x":17
},
{
"y":21,
"x":16
},
{
"y":22,
"x":15
},
{
"y":22,
"x":14
},
{
"y":22,
"x":13
},
{
"y":22,
"x":12
},
{
"y":22,
"x":11
},
{
"y":22,
"x":10
},
{
"y":22,
"x":9
},
{
"y":22,
"x":8
},
{
"y":22,
"x":7
},
{
"y":22,
"x":7
}
]
]
}If a given symbol has more than one stroke it is represented by having more than one array of x and y dictionaries. This information mas also be obtained via the top level count attribute.
Other attributes:
digit- the digit this set of strokes representsinstance- the example numberstrokes- an array of arrays of JSON dictionaries of points.
To build the dataset, execute the script strokedata.py contained in the root of this distribution.
