square#
You can find an interactive version of this example here
- stimupy.stimuli.sbcs.square(target_radius, visual_size=None, ppd=None, shape=None, surround_radius=None, rotation=0.0, intensity_surround=0.0, intensity_background=0.5, intensity_target=0.5, origin='mean')#
Simultaneous contrast stimulus with square target and surround field
- Parameters:
visual_size (Sequence[Number, Number], Number, or None (default)) – visual size [height, width] of image, in degrees
ppd (Sequence[Number, Number], Number, or None (default)) – pixels per degree [vertical, horizontal]
shape (Sequence[Number, Number], Number, or None (default)) – shape [height, width] of image, in pixels
target_radius (float) – radius of target, in degrees visual angle
surround_radius (float) – radius of surround context field, in degrees visual angle
rotation (float, optional) – rotation (in degrees), counterclockwise, by default 0.0 (horizontal)
intensity_surrond (float, optional) – intensity of surround context field, by default 0.0
intensity_background (float, optional) – intensity value of background, by default 0.5
intensity_target (float, or Sequence[float, ...], optional) – intensity value for each target, by default 0.5.
origin ("corner", "mean" or "center") – if “corner”: set origin to upper left corner if “mean”: set origin to hypothetical image center (default) if “center”: set origin to real center (closest existing value to mean)
- Returns:
dict with the stimulus (key: “img”), mask with integer index for each frame (key: “target_mask”), and additional keys containing stimulus parameters
- Return type: