关于模仿口罩识别教程？

[ovag]

似乎是分辨率过高的问题，应该如何解决

# Edge Impulse - OpenMV Image Classification Example

import sensor, image, time, os, tf

sensor.reset()                         # Reset and initialize the sensor.
sensor.set_pixformat(sensor.RGB565)    # Set pixel format to RGB565 (or GRAYSCALE)
sensor.set_framesize(sensor.QVGA)      # Set frame size to QVGA (320x240)
sensor.set_windowing((240, 240))       # Set 240x240 window.
sensor.skip_frames(time=2000)          # Let the camera adjust.

net = "trained.tflite"
labels = [line.rstrip('\n') for line in open("labels.txt")]

clock = time.clock()
while(True):
    clock.tick()

    img = sensor.snapshot()

    # default settings just do one detection... change them to search the image...
    for obj in tf.classify(net, img, min_scale=1.0, scale_mul=0.8, x_overlap=0.5, y_overlap=0.5):
        print("**********\nPredictions at [x=%d,y=%d,w=%d,h=%d]" % obj.rect())
        img.draw_rectangle(obj.rect())
        # This combines the labels and confidence values into a list of tuples
        predictions_list = list(zip(labels, obj.output()))

        for i in range(len(predictions_list)):
            print("%s = %f" % (predictions_list[i][0], predictions_list[i][1]))

    print(clock.fps(), "fps")

[kidswong999]

只能OpenMV4 Plus用，OpenMV4不能用。

换OpenMV4 Plus

[1fud]

请问这是为什么呢

[kidswong999]

@1fud OpenMV4 H7硬件的性能不够，不能运行edge impulse上的mobilenet网络，只有OpenMV4 H7 Plus可以，因为它加了ram芯片。

如果要在OpenMV4 H7上运行神经网络，可以用目标点检测的小模型。https://singtown.com/learn/50918/