python如何在下方代码中加个判断,如输出项大于0.9输出该数字,如果小于0.9,则是上个数识别出的数+1?
max_idx = 0; max_val = predictions_list[0][1]
for i in range(len(predictions_list)):
if predictions_list[i][1] >= max_val:
max_val = predictions_list[i][1]
max_idx = i
print("%s = %f" % (predictions_list[max_idx][0], predictions_list[max_idx][1]))
现在是运行正常的
我尝试添加if嵌套,但是输出项变为了多个。刚入行
输出项大于0.9输出该数字,如果小于0.9,则是上个数+1?
如果max_val就是第一项呢?
不考虑这个的话,循环完成了判断max_val的值是否符合条件,不符合就把max_idx减1再输出
看看你的predictions_list是什么样的
不想又多个输出项可以先初始化一个标记变量flag=True,接着写一个if判断语句,如果大于0.9则重新个flag赋值为flag=True,如果小于0.9重新个flag赋值为flag=Falase,或者计数变量直接加1.再写一个if语句判断当前的flag是True还是Falase,True输出,False则+1
import sensor, image, time, os, tf, uos, gc
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((60, 30, 160, 160)) # Set 240x240 window. # Set 240x240 window.
sensor.skip_frames(time=2000) # Let the camera adjust.
sensor.set_auto_gain(False)
sensor.set_auto_whitebal(False)
sensor.set_auto_exposure(False,exposure_us = int(6000))
net = None
labels = None
try:
# load the model, alloc the model file on the heap if we have at least 64K free after loading
net = tf.load("trained.tflite", load_to_fb=uos.stat('trained.tflite')[6] > (gc.mem_free() - (64*1024)))
except Exception as e:
print(e)
raise Exception('Failed to load "trained.tflite", did you copy the .tflite and labels.txt file onto the mass-storage device? (' + str(e) + ')')
try:
labels = [line.rstrip('\n') for line in open("labels.txt")]
except Exception as e:
raise Exception('Failed to load "labels.txt", did you copy the .tflite and labels.txt file onto the mass-storage device? (' + str(e) + ')')
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 net.classify(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()))
max_idx = 0; max_val = predictions_list[0][1]
for i in range(len(predictions_list)):
if predictions_list[i][1] >= max_val:
max_val = predictions_list[i][1]
max_idx = i
print("%s = %f" % (predictions_list[max_idx][0], predictions_list[max_idx][1]))
print(clock.fps(), "fps")