ImagePopulation
ImagePopulation(self, geometry, name=None, copied=False, net_id=0)Rate-coded Population allowing to represent images (png, jpg…) as the firing rate of a population (each neuron represents one pixel).
This extension requires the Python Image Library (pip install Pillow).
The extensions has to be explicitly imported:
import ANNarchy as ann
from ANNarchy.extensions.image import ImagePopulation
net = ann.Network()
pop = net.create(ImagePopulation(geometry=(480, 640)))
pop.set_image('image.jpg')About the geometry:
- If the geometry is 2D, it corresponds to the (height, width) of the image. Only the luminance of the pixels will be represented (grayscale image).
- If the geometry is 3D, the third dimension can be either 1 (grayscale) or 3 (color).
If the third dimension is 3, each will correspond to the RGB values of the pixels.
Warning: due to the indexing system of Numpy, a 640*480 image should be fed into a (480, 640) or (480, 640, 3) population.
Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| geometry | tuple | population geometry as tuple. It must correspond to the image size and be fixed through the whole simulation. | required |
| name | str | unique name of the population (optional). | None |
Methods
| Name | Description |
|---|---|
| set_image | Sets an image (.png, .jpg or whatever is supported by PIL) into the firing rate of the population. |
set_image
set_image(filename)Sets an image (.png, .jpg or whatever is supported by PIL) into the firing rate of the population.
If the image has a different size from the population, it will be resized.
Parameters
| Name | Type | Description | Default |
|---|---|---|---|
| filename | str | name of the image file. | required |