mirror of
https://github.com/openmv/openmv.git
synced 2025-11-04 14:49:50 +08:00
32 lines
1.3 KiB
Python
32 lines
1.3 KiB
Python
# LetNet Example
|
|
import sensor, image, time, os, nn
|
|
|
|
sensor.reset() # Reset and initialize the sensor.
|
|
sensor.set_contrast(3)
|
|
sensor.set_pixformat(sensor.GRAYSCALE) # Set pixel format to RGB565 (or GRAYSCALE)
|
|
sensor.set_framesize(sensor.QVGA) # Set frame size to QVGA (320x240)
|
|
sensor.set_windowing((128, 128)) # Set 128x128 window.
|
|
sensor.skip_frames(time=100)
|
|
sensor.set_auto_gain(False)
|
|
sensor.set_auto_exposure(False)
|
|
|
|
# Load lenet network
|
|
net = nn.load('/lenet.network')
|
|
labels = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
|
|
|
|
clock = time.clock() # Create a clock object to track the FPS.
|
|
while(True):
|
|
clock.tick() # Update the FPS clock.
|
|
img = sensor.snapshot() # Take a picture and return the image.
|
|
out = net.forward(img.copy().binary([(150, 255)], invert=True))
|
|
max_idx = out.index(max(out))
|
|
score = int(((out[max_idx]+128)/255)*100)
|
|
if (score < 70):
|
|
score_str = "??:??%"
|
|
else:
|
|
score_str = "%s:%d%% "%(labels[max_idx], score)
|
|
img.draw_string(0, 0, score_str)
|
|
|
|
print(clock.fps()) # Note: OpenMV Cam runs about half as fast when connected
|
|
# to the IDE. The FPS should increase once disconnected.
|