nonempty_pixel_indices

silmaril.imaging.nonempty_pixel_indices(traced_pixel_corners, source_x_range, source_y_range)

Returns a list of pixel indices on the image plane corresponding to pixels that fall within the source image when traced back to the source plane.

Parameters:

• traced_corners_grid (numpy.ndarray) – grid of source plane coordinates of the corners of each pixel on the image plane

• source_x_range (list) – min and max x coordinates of the source image

• source_y_range (list) – min and max y coordinates of the source image

Returns:

nonempty_pixels – list of pixel indices

Return type:

np.ndarray