Log Polar Mapping Example

# This work is licensed under the MIT license.
# Copyright (c) 2013-2023 OpenMV LLC. All rights reserved.
# https://github.com/openmv/openmv/blob/master/LICENSE
#
# Log Polar Mapping Example
#
# This example shows off re-projecting the image using a log polar
# transformation. Log polar images are useful in that rotations
# become translations in the X direction and exponential changes
# in scale (x2, x4, etc.) become linear translations in the Y direction.

import csi
import time

csi0 = csi.CSI()
csi0.reset()  # Initialize the camera sensor.
csi0.pixformat(csi.RGB565)  # or csi.GRAYSCALE
csi0.framesize(csi.QQVGA)  # or csi.QVGA (or others)
csi0.snapshot(time=2000)  # Let new settings take affect.

clock = time.clock()  # Tracks FPS.

while True:
    clock.tick()  # Track elapsed milliseconds between snapshots().
    img = csi0.snapshot().logpolar(reverse=False)

    print(clock.fps())  # Note: Your OpenMV Cam runs about half as fast while
    # connected to your computer. The FPS should increase once disconnected.