pulse2percept.stimuli.samples.cajal_retina

pulse2percept.stimuli.samples.cajal_retina(resize=None, electrodes=None, metadata=None, as_gray=False)[source]

Cajal’s drawing of the retina

Load a 745x500 RGB scan of Cajal’s drawing of the retina.

Wikimedia Commons designates the drawing public domain. Attribution is included in metadata; see data/samples/README.rst for provenance.

Added in version 0.11.0.

Parameters:

  • resize ((height, width) or None, optional) – A tuple specifying the desired height and the width of the image stimulus.

  • electrodes (int, string or list thereof; optional) –

    Optionally, you can provide your own electrode names. If none are given, each pixel is named after its place in the image: a letter for the row, a number for the column, and a suffix for the color channel (e.g. ‘A1’, ‘C12’, ‘A1_R’).

    Note

    The number of electrode names provided must match the number of pixels in the (resized) image.

  • metadata (dict, optional) – Additional stimulus metadata can be stored in a dictionary. Keys given here override the attribution defaults above.

  • as_gray (bool, optional) – Flag whether to convert the image to grayscale.

Returns:

stim

Return type:

ImageStimulus

Examples

>>> from pulse2percept.stimuli import samples
>>> samples.cajal_retina().img_shape
(745, 500, 3)