import sensor, image, time
from pyb import UART
# 为了使色彩追踪效果真的很好,你应该在一个非常受控制的照明环境中。
BLUE_threshold = ( 0, 80, -70, -10, -0, 30)
# 设置蓝色的阈值
sensor.reset() # 初始化sensor
sensor.set_pixformat(sensor.RGB565) # use RGB565.
sensor.set_framesize(sensor.QQVGA)
#设置图像像素大小
sensor.skip_frames(10) # 让新的设置生效。
sensor.set_auto_whitebal(False)
clock = time.clock()
uart = UART(3,115200)
uart.init(115200, bits=8, parity=None, stop=1) #通信
K=5000#自取
while(True):
clock.tick()
img = sensor.snapshot() # 拍一张照片并返回图像。
blobs = img.find_blobs([BLUE_threshold])
if len(blobs) == 1:
# Draw a rect around the blob.
b = blobs[0]
img.draw_rectangle(b[0:4]) # rect
img.draw_cross(b[5], b[6]) # cx, cy
Lm = (b[2]+b[3])/2
length = K/Lm
print(length)
c=int(length)
if blobs:
#如果找到了目标颜色
for b in blobs:
#迭代找到的目标颜色区域
# Draw a rect around the blob.
img.draw_rectangle(b[0:4]) # rect
#用矩形标记出目标颜色区域
img.draw_cross(b[5], b[6]) # cx, cy
#在目标颜色区域的中心画十字形标记
print(b[5], b[6])
#输出目标物体中心坐标
print("1")
a=1
else:
print("2")
b=2
data = bytearray([0xb3,a,b,c,0x5b])
k5r1
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Posts made by k5r1
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我的a明明定义了 为什么老是会报 a,b,c没有定义的错误啊
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我要把黑色和圆形同时作为判断条件,应该怎么加
import sensor, image, time from pyb import UART sensor.reset() sensor.set_pixformat(sensor.RGB565) # grayscale is faster sensor.set_framesize(sensor.QVGA) sensor.skip_frames(time = 2000) clock = time.clock() uart = UART(3,115200) uart.init(115200, bits=8, parity=None, stop=1) while(True): clock.tick() img = sensor.snapshot().lens_corr(strength = 1.8, zoom = 1.0) for c in img.find_circles(threshold = 2200, x_margin = 10, y_margin = 10, r_margin = 10, r_min = 2, r_max = 15, r_step = 2,roi=(53,33,196,203)): img.draw_circle(c.x(), c.y(), c.r(), color = (255, 0, 0))#画圆 用红线框出 x=int(c.x()) y=int(c.y()) data = bytearray([0xb3,x,y,0x5b]) uart.write(data) print(x,y)
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我只想识别我roi区域的那一块,可是我的roi加进去好像没起到作用
import sensor, image, time from pyb import UART sensor.reset() sensor.set_pixformat(sensor.RGB565) # grayscale is faster sensor.set_framesize(sensor.QQVGA) sensor.skip_frames(time = 2000) clock = time.clock() uart = UART(3,115200) uart.init(115200, bits=8, parity=None, stop=1) area= (66, 100, -31, 85, -8, 94) while(True): clock.tick() img = sensor.snapshot().lens_corr(strength = 1.8, zoom = 1.0) for c in img.find_circles(threshold = 2000, x_margin = 10, y_margin = 10, r_margin = 10, r_min = 2, r_max = 15, r_step = 2): roi=(18,7,113,106) #感兴趣区域 img.draw_circle(area,c.x(), c.y(), c.r(), color = (255, 0, 0))#画圆 用红线框出 x=int(c.x()) y=int(c.y()) data = bytearray([0xb3,x,y,0x5b]) uart.write(data) print(x,y)