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標題: 工程訓練賽用openmv識別二維碼與顏色 [打印本頁]

作者: SUPER111111 時間: 2019-10-21 18:15
標題: 工程訓練賽用openmv識別二維碼與顏色
import sensor, image, time,json
from pyb import UART

i= 1
# Color Tracking Thresholds (L Min, L Max, A Min, A Max, B Min, B Max)
# The below thresholds track in general red/green things. You may wish to tune them...
thresholds = [(7, 41, 13, 37, -63, -21), #yellow generic_red_thresholds -> index is 0 so code == (1 << 0)
            (55, 79, -39, 0, 8, 27),
            (35, 55, 21, 84, 26, 69)] #blue generic_green_thresholds -> index is 1 so code == (1 << 1)
# 當“find_blobs”的“merge = True”時，code代碼被組合在一起。

sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time = 2000)
sensor.set_auto_gain(False) # must be turned off for color tracking
sensor.set_auto_whitebal(False) # must be turned off for color tracking
clock = time.clock()

# 只有比“pixel_threshold”多的像素和多于“area_threshold”的區域才被
# 下面的“find_blobs”返回。如果更改相機分辨率，
# 請更改“pixels_threshold”和“area_threshold”。 “merge = True”合并圖像中所有重疊的色塊。
uart =UART(3,115200)

while(True):
clock.tick()
img = sensor.snapshot()
if i==1:
      img.lens_corr(1.8) # strength of 1.8 is good for the 2.8mm lens.
      for code in img.find_qrcodes():
         print(code)
         output_str="{%d}" code
         uart.write(output_str+'\r\n')
         print('send:',output_str)
         i=1
else:
      for blob in img.find_blobs(thresholds,pixels_threshold =50):
         if blob.code() == 1: # r/g code == (1 << 1) | (1 << 0)
            img.draw_rectangle(blob.rect())
            img.draw_cross(blob.cx(), blob.cy())
            output_str="{1}"
            uart.write(output_str+'\r\n')
            print('send:',output_str)
         if blob.code() == 2: # r/g code == (1 << 1) | (1 << 0)
            img.draw_rectangle(blob.rect())
            img.draw_cross(blob.cx(), blob.cy())
            output_str="{2}"
            uart.write(output_str+'\r\n')
            print('send:',output_str)
            #print(2)
         if blob.code() == 4: # r/g code == (1 << 1) | (1 << 0)
            img.draw_rectangle(blob.rect())
            img.draw_cross(blob.cx(), blob.cy())
            output_str="{3}"
            uart.write(output_str+'\r\n')
            print('send:',output_str)
            #print(3)

作者: 2337907856 時間: 2020-12-20 17:00
復制到open mv的IDE中為什么會有錯誤呢

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