亲手教你实现pynq-z2条形码识别功能

pip3 install pyzbar

pip3 show pyzbar

sudo apt-get install python-zbar

pip3 upgrade

pip3 install pillow

import sys
sys.path

export NDK_ROOT=/home/jiang/soft/Android-ndk-r8e 

$ gedit ~/.bashrc

export PATH=<你的要加入的路径>:$PATH

export PATH=<你要加入的路径1>:<你要加入的路径2>: ...... :$PATH

export PYTHONPATH=/home/zhao/setup/caffemaster/python:/home/zhao/setup/mypy:$PYTHONPATH 

$ sudo gedit /etc/profile 

export PATH=<你要加入的路径>:$PATH

import sys
sys.path
sys.path.append('/home/xilinx/.local/lib/python3.6/site-packages')

sys.path.append('')

# 关键识别代码
barcodes = decode(image)
def decode (image,barcodes):
    # loop over the detected barcodes
    for barcode in barcodes:
        # extract the bounding box location of the barcode and draw the
        # bounding boxr surrounding the barcode on the image
        (x, y, w, h) = barcode.rect
        cv2.rectangle(image, (x, y),(x + w,y + h), (255, 0, 0), 5)
        # the barcode data is a bytes object so if we want to draw it on
        # our output image wre need to convert it to a string first
        barcodeData = barcode.data.decode("utf-8")
        barcodeType = barcode.type
        # draw the barcode data and barcode type on the image
        text ="{} ({})". format(barcodeData,barcodeType)
        cv2.putText(image,text,(x, y - 10), cv2.FONT_HERSHEY_SIMPLEX,.8, (255, 0, 0), 2) 
        # print the barcode type and data to the terminal
        print("[INFO] Found {} barcode: {}".format(barcodeType,barcodeData))
    plt.figure(figsize=(10,10))
    plt.imshow(image)
    plt.show()
# Decoding barcodes
decode(image,barcodes)