模板匹配与串口调试代码问题
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import sensor, image, time from image import SEARCH_EX, SEARCH_DS from pyb import UART import json sensor.reset() sensor.set_contrast(1) sensor.set_gainceiling(16) sensor.set_framesize(sensor.QQVGA) sensor.set_pixformat(sensor.GRAYSCALE) templates = ["/STM32F103.pgm", "/Beep.pgm"] #保存多个模板 uart = UART(3, 115200) uart.init(115200, bits=8, parity=None, stop=1) #8位数据位,无校验位,1位停止位、 clock = time.clock() while (True): clock.tick() img = sensor.snapshot() # find_template(template, threshold, [roi, step, search]) # ROI: The region of interest tuple (x, y, w, h). # Step: The loop step used (y+=step, x+=step) use a bigger step to make it faster. # Search is either image.SEARCH_EX for exhaustive search or image.SEARCH_DS for diamond search # # Note1: ROI has to be smaller than the image and bigger than the template. # Note2: In diamond search, step and ROI are both ignored. for t in templates: template = image.Image(t) #对每个模板遍历进行模板匹配 r = img.find_template(template, 0.70, step=2, search=SEARCH_EX) #, roi=(10, 0, 80, 60)) #find_template(template, threshold, [roi, step, search]),threshold中 #的0.7是相似度阈值,roi是进行匹配的区域(左上顶点为(10,0),长80宽60的矩形), #注意roi的大小要比模板图片大,比frambuffer小。 #把匹配到的图像标记出来 if r: img.draw_rectangle(r) uart.write(t) uart.write("YES!") else: uart.write("NO!\n")
在最后的if...else 判断中,为什么if判断成功的话还会执行else,要怎么改进
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我测试没有问题,你用的是发的代码?
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@kidswong999
代码一样,可是我的还是不可以
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是因为你的模版有两个,第一个找到了,显示yes,第二个模版没找到,显示no。