openmv视觉抓取代码

抓取物体的代码如下：

import sensor, image, time

# 初始化摄像头
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time = 2000)

# 设置颜色追踪ROI
ROI = [100, 80, 140, 120]  # [x, y, w, h]
sensor.set_windowing(ROI)

# 设置颜色追踪参数
thresholds = (10, 100, -128, 127, -128, 127)  # RGB颜色阈值
blob_params = image.BlobParams()

while True:
    # 获取图像
    img = sensor.snapshot()

    # 进行颜色追踪
    blobs = img.find_blobs([thresholds], roi=ROI, pixels_threshold=100, area_threshold=100, merge=True, params=blob_params)

    # 显示结果
    if blobs:
        # 找到最大的色块
        max_blob = max(blobs, key=lambda b: b.pixels())

        # 在色块周围画矩形框
        img.draw_rectangle(max_blob.rect())
        img.draw_cross(max_blob.cx(), max_blob.cy())

抓取二维码的代码如下：

import sensor, image, time, qrcode

# 初始化摄像头
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time = 2000)

# 设置二维码识别ROI
ROI = [100, 80, 140, 120]  # [x, y, w, h]
sensor.set_windowing(ROI)

while True:
    # 获取图像
    img = sensor.snapshot()

    # 进行二维码识别
    qr_code = img.find_qrcodes()

    # 显示结果
    if qr_code:
        # 获取二维码内容
        content = qr_code[0].payload()

        # 在图像上画出二维码框和内容
        img.draw_rectangle(qr_code[0].rect())
        img.draw_string(qr_code[0].x()+5, qr_code[0].y()-10, content)

        # 输出二维码内容到控制台
        print("QR Code detected, content:", content)