[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3JjQMcu-kOP--IoVzvd7PWWzG-sFr2Kpe2l9VCA8mr4":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-10-14 11:42:01",221140042,[8,9,10,11],"全为0","0或者1","全为255","值不唯一",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},10,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_46731961","第一次作业","一张白色的灰度图片,那么读取到的像素值为()",[21,32,41,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],221140040,[25,26,27,28],"128","255","256","254","图片中,每个像素都由一个8位整数来表示,即每个像素的范围是0到( )","v1",1,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],221140041,[36,37,38,39],"R\\G \\B","B\\G\\R","G\\R\\B","G\\B\\R","每个像素由一个三元数组表示,使用OpenCV库读取到的颜色通道依次是( )",{"answer":42,"createTime":5,"id":6,"options":43,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],221140043,[48,49,50,51],"image(0,0) = [255,255,255]","image(0,0,0) = [255,255,255]","image[0,0] = [255,255,255]","image[0] = [255,255,255]","将BGR图像image在(0,0)处的像素转化为白像素的代码是( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],221140045,[57,58,59,60],"image(: ,: , 1) = 0","image[: ,: , 0]= 0","image[: ,: , 1]= 0","image[: ,: , 2]= 0","将图片image指定的G通道(绿色)值设为0,代码为( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],221140048,[66,67,68,69],"namedWindow( )、imshow( )、destroy( )","namedWindow( )、imread( )、destroy( )","namedWindow( )、imshow( )、destroyWindow( )","namedWindow( )、destroyWindow( )、imshow( )、","OpenCV中允许指定窗口名来创建、显示、销毁窗口的函数分别是( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],221140050,[75,76,77,78],"0","1","2","-1","OpenCV中读取图片函数imread( )参数中,代表读取灰度图的参数为( )",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],221140052,[84,85,86,87],"image[1,1,0]","image[0,0,1]","image[1,1,2]","image[0,0,0]","对于图片image,描述该图片左上角像素点的蓝色通道的表达式为( )",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],221140054,[93,94,95,96],"image.shape","image.dtype","image.size","image.itemsize","描述图像image像素大小的属性为( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],221140056,[102,103,104,105],"image[0:99,0:99]","image[0:100,0:100,0]","image[0:100,0:100,1]","image[0:100,0:100]","描述图片image的左上角的100行100列区域的表达式为( )"]