原创 ROS learning note
killall -9 roscore killall -9 rosmaster To add the workspace to your ROS environment you need to source the genera
2019-03-18 00:17:50
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原创 旋轉矩陣、四元素之間轉換matlab
R=angle2dcm(r1,r2,r3,S) S 爲轉動次序，默認爲'ZYX' [r1,r2,r3] = dcm2angle(R,S) // ri 爲弧度 [r1,r2,r3] = quat2angle([q0 q1 q2 q3],
2018-11-20 06:13:50
原创 convert from .png to .jpg
from PIL import Image im = Image.open("a.png") rgb_im = im.convert('RGB') rgb_im.save('color.jpg')
2018-10-20 06:08:51
原创 vim settings
install vim: sudo apt-get install cim change the vim settings file: cd /etc/vim sudo gedit vimrc add some information
2018-09-03 19:21:51
原创 python numpy 矩陣創建
1. 創建一般的多維數組import numpy as npa = np.array([1,2,3], dtype=int)type(a)a.shapea.dtype.namea.sizea.itemsizeb=np.array([1,2
2018-09-03 19:21:51
原创 DataParallel layers (multi GPU)
import torch.nn as nnimport torch.nn.parallelimport torch.backends.cudnn as cudnnmodel = nn.DataParallel(model)
2018-09-03 19:21:51
原创 python: the number is not float type
from __future__ import divisionkernel = t.ones(3,3)/-9kernel[1][1] = 8/9kernel
2018-09-03 19:21:51