在螢幕上放的測試,實物可能需要更改一下閾值import sensor, image, time ,pyb
sensor.
reset()
sensor.
set_pixformat
(sensor.
rgb565
)sensor.
set_framesize
(sensor.
qvga
)sensor.
skip_frames
(100
)#初始化指示燈
led = pyb.
led(2)
led.on(
)time.
sleep
(150
)led.
off(
)red_threshold =(23
,77,18
,101,-
16,96)
green_threshold =(9
,87,-
67,-11
,-2,
66)blue_threshold =(12
,69,2
,86,-
128,-23
)red_blobs = none #本幀捕捉到的色塊列表
green_blobs = none
blue_blobs = none
target_threshold =
[red_threshold,green_threshold,blue_threshold] #目標色塊閾值列表
target_blobs =
[red_blobs,green_blobs,blue_blobs] #注意!
: 這是巢狀列表 , 成員為色塊列表
name_list =
['red'
,'green'
,'blue'
]target_proportion =
(1.05,2
) #色塊長寬比例係數 w/h
clock = time.
clock()
def targetblobs_find()
: temp =
0while temp <3:
target_blobs[temp]
= img.
find_blobs
([target_threshold[temp]
],merge = true,area_threshold =
600)
iflen
(target_blobs[temp]
)>0:
for blob in target_blobs[temp]
: proportion = blob.h(
)/blob.w(
)if proportion > target_proportion[
0] and proportion < target_proportion[1]
: img.
draw_rectangle
(blob.
rect()
) img.
draw_string
(blob.x(
),blob.y(
),name_list[temp]
) temp +=
1while
(true)
: clock.
tick()
img = sensor.
snapshot()
img.
lens_corr
(strength=
1.6) #矯正畫面
targetblobs_find()
print
(clock.
fps(
))
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