[Numpy-discussion] Bilinear interpolation (numpy only)

Hi all, Does anyone has a simple 2D linear interpolation for resizing an image (without scipy) ? Ideally, something like ```def zoom(Z, ratio): ...``` where Z is a 2D scalar array and ratio the scaling factor. (I'm currently using ```scipy.ndimage.interpolation.zoom``` but I would like to avoid the scipy dependency) Thanks. Nicolas