# Converting Byte Object to numpy array
**URL:** https://community.plotly.com/t/converting-byte-object-to-numpy-array/40189
**Category:** 📊 Plotly Python
**Created:** [May 28, 2020, 6:50am UTC](https://community.plotly.com/t/converting-byte-object-to-numpy-array/40189 "2020-05-28T06:50:25Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@f.batiri](https://community.plotly.com/u/f.batiri)
#### Post date: [May 28, 2020, 6:50am UTC](https://community.plotly.com/t/converting-byte-object-to-numpy-array/40189/1 "2020-05-28T06:50:25Z")
I want to convert the byte object exported with `fig.to_image()`, to numpy array so it can be used in Folium as image overlay. (I can not save the image to disk)
How can this be done?
Here is an example:
```auto
import plotly.graph_objects as go
# Create plot
fig = go.Figure(data =
go.Contour(
z=[[10, 10.625, 12.5, 15.625, 20],
[5.625, 6.25, 8.125, 11.25, 15.625],
[2.5, 3.125, 5., 8.125, 12.5],
[0.625, 1.25, 3.125, 6.25, 10.625],
[0, 0.625, 2.5, 5.625, 10]]
))
# Export byte object
img_bytes = fig.to_image(format="png",width=600, height=350)
```
I have tried using PIL:
```auto
from PIL import Image
img = Image.frombytes("RGB", (350,600), img_bytes)
```
Getting `ValueError: not enough image data` .
I have never used byte object before making this process very confusing for me.
* * *
PS: Any other way to use plotly figure on folium map is also appreciated.
---
### Author:  [@empet](https://community.plotly.com/u/empet)
#### Post date: [May 28, 2020, 8:20am UTC](https://community.plotly.com/t/converting-byte-object-to-numpy-array/40189/2 "2020-05-28T08:20:54Z")
Hi @f.batiri
This is the function that converts Plotly fig image to an array:
```auto
import io
from PIL import Image
def plotly_fig2array(fig):
#convert Plotly fig to an array
fig_bytes = fig.to_image(format="png")
buf = io.BytesIO(fig_bytes)
img = Image.open(buf)
return np.asarray(img)
```
---
### Author:  [@f.batiri](https://community.plotly.com/u/f.batiri)
#### Post date: [May 28, 2020, 3:21pm UTC](https://community.plotly.com/t/converting-byte-object-to-numpy-array/40189/3 "2020-05-28T15:21:17Z")
Works like a charm and saved me a lot of time. Thank you very much.
---
### Author:  [@empet](https://community.plotly.com/u/empet)
#### Post date: [May 28, 2020, 3:44pm UTC](https://community.plotly.com/t/converting-byte-object-to-numpy-array/40189/4 "2020-05-28T15:44:18Z")
I recently learned how to make this conversion. @jmmease answered my question. Thanks go to him.