1.numpy数组后面添加一个list:
import numpy as np a=[[1,2,3],[4,5,6],[7,8,9]] box=np.array(a) box=np.vstack((box,[10,11,12])) x1=box[:,0] print(box)
2.PIL库,读入灰度图二进制数据转为RGB:
imagePil = Image.frombytes('L', (originalImageWidth,originalImageHeight), imageSerialized).convert('RGB')