pub fn render_hist_grid(
star_side: u32,
grid: &View3d<'_, f32>,
signed: bool,
) -> Image<Luma<u8>>Expand description
Visualises an array of orientation histograms.
The dimensions of the provided Array3d are orientation bucket,
horizontal location of the cell, then vertical location of the cell.
Note that we ignore block-level aggregation or normalisation here.
Each rendered star has side length star_side, so the image will have
width grid.lengths[1] * star_side and height grid.lengths[2] * star_side.