Here are some examples for rotate operation on-the-fly.
i_o_rotate url command modifier you can rotate the image on-the-fly. The integer after the
i_o_rotate specify the rotate degree. Here we are rotating our original image by 90 degree and 180 degree.
After the rotation degree you can specify a scale. This float value will determine the scale of the image after the rotation.
By default the rotation operation set the pivot of rotation to the center of the image.
However you can set the rotation pivot either by explicitly using
i_c_y commands or other selecting commands such as
i_c_face to set the rotation pivot on face.