adapt_normalized_rms_contrast

stimupy.utils.contrast_conversions.adapt_normalized_rms_contrast(img, rms_contrast, mean_luminance=None)

Adapt normalized rms contrast of image (std divided by mean)

Parameters:

• img (np.ndarray) – stimulus array

• rms_contrast (float) – desired rms contrast (std divided by mean intensity)

• mean_luminance (float) – desired mean luminance; if None (default), dont change mean luminance

Returns:

img – image with adapted rms contrast and mean luminance if passed

Return type:

np.ndarray