Retrieve image from sqlite3 and display in Kivy image widget - ValueError

Question

REQUIREMENT

I\'m trying to retrieve an image from Database and set this image to kivy image widget, this operation throws a ValueError, unsure of the ca

Answer 1

After execution of io.BytesIO(), data is in Bytes. Use Kivy CoreImage and texture to convert data.

Replace

self.image.source = data

with:

self.image.texture = CoreImage(data, ext="png").texture

Image source

source

Filename / source of your image.

source is a StringProperty and defaults to None

Output

Answer 2

Ikolim's answer is good but to be more specific, If you want to display a binary image directly into kivy you can simply work with io module (import io) and kivy image module (kivy.uix.image)

Check this code:

from kivy.uix.image import Image, CoreImage
import io


binary_data= #binary img extracted from sqlite

data = io.BytesIO(binary_data)
img=CoreImage(data, ext="png").texture

new_img= Image()
new_img.texture= img