hi, everyone i trained a model for image classification and it worked well on openmv using portenta h7 with portenta vision shield, i wanted to store the labels in a text file in the sd card but it is showing me the error.
import sensor, image, time, os, tf
sensor.reset() # Reset and initialize the sensor.
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((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")]
# Open a file in write mode to store the predicted labels
with open('/sd/predictions.txt', 'w') as f:
f.write("Predicted Labels:\n")
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)):
confidence = predictions_list[i][1]
label = predictions_list[i][0]
print("%s = %f" % (label, confidence))
# Write the predicted label to the file if the confidence is above 0.9 and the label is not "unknown"
if confidence > 0.9 and label != "unknown":
with open('/sd/predictions.txt', 'a') as f:
f.write(label + "\n")
print("It's a", label, "!")
print(clock.fps(), "fps")
but it giving me the OSError: [Errno 2] ENOENT at " with open(‘/sd/predictions.txt’, ‘a’) as f: " this line.