sizhky’s gists

sizhky / random_warp.py

Last active October 13, 2020 04:26

sizhky / colab_important_snipplets.py

Created September 19, 2020 12:11 — forked from adityajn105/colab_important_snipplets.py

Google Colab important code snipplets

	### Download a file to Local System from Colab
	from google.colab import files
	with open('example.txt', 'w') as f:
	f.write('some content')
	files.download('example.txt')

	#======================================================================================================
	#upload file to Colab from Local System
	from google.colab import files
	uploaded = files.upload()

sizhky / Untitled1.html

Created August 28, 2020 14:57

This file has been truncated, but you can view the full file.

	<!DOCTYPE html>
	<html>
	<head><meta charset="utf-8" />

	<title>Untitled1</title>

	<script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.1.10/require.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>

sizhky / subplots.py

Created July 27, 2020 03:59

	def subplots(ims, nc=5, figsize=(5,5), **kwargs):
	if len(ims) == 0: return
	titles = kwargs.pop('titles',[None]*len(ims))
	nr = (len(ims)//nc) if len(ims)%nc==0 else (1+len(ims)//nc)
	logger.info(f'plotting {len(ims)} images in a grid of {nr}x{nc} @ {figsize}')
	fig, axes = plt.subplots(nr,nc,figsize=figsize)
	axes = axes.flat
	for ix,(im,ax) in enumerate(zip(ims,axes)):
	show(im, ax=ax, title=titles[ix], **kwargs)
	blank = (np.eye(100) + np.eye(100)[::-1])

sizhky / video2frames.py

Created July 24, 2020 05:05

	import cv2, os
	def stem(fpath): return '.'.join(fname(fpath).split('.')[:-1])

	def convert_mp4_to_frames(filename):
	vidcap = cv2.VideoCapture(filename)
	success,image = vidcap.read()
	count = 0
	while success:
	os.makedirs(stem(filename), exist_ok=True)
	cv2.imwrite(f"{stem(filename)}/{count}.jpg", image) # save frame as JPEG file

sizhky / mount.py

Created July 19, 2020 13:36

Mount a drive file in colab

	!pip install PyDrive
	from pydrive.auth import GoogleAuth
	from pydrive.drive import GoogleDrive
	from google.colab import auth
	from oauth2client.client import GoogleCredentials
	auth.authenticate_user()
	gauth = GoogleAuth()
	gauth.credentials = GoogleCredentials.get_application_default()
	drive = GoogleDrive(gauth)

sizhky / youtube speed

Created July 4, 2020 15:19

Youtube speed over 9000

document.getElementsByTagName("video")[0].playbackRate = 9001

sizhky / set_background.py

Created June 14, 2020 09:30

set background in jupyter cells

	from IPython.core.magic import register_cell_magic
	from IPython.display import HTML, display

	def set_background(color):
	script = (
	"var cell = this.closest('.jp-CodeCell');"
	"var editor = cell.querySelector('.jp-Editor');"
	"editor.style.background='{}';"
	"this.parentNode.removeChild(this)"
	).format(color)

sizhky / retina_net.py

Created June 1, 2020 17:33

	import torch, math
	import torch.nn as nn
	import torch.nn.functional as F
	class RetinaNet(nn.Module):
	num_anchors = 9

	def __init__(self, num_classes):
	super(RetinaNet, self).__init__()
	self.fpn = FPN50()
	self.num_classes = num_classes

sizhky / jupyter theme.sh

Last active August 6, 2022 13:41

jupyter theme

	jt -t grade3 -fs 95 -tfs 11 -nfs 115 -cellw 95% -T
	jt -t onedork -fs 95 -tfs 11 -nfs 115 -cellw 88% -T -N

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