Shark Deng sharkdeng

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Web developer @9scoretrain.com

sharkdeng / crop.py

Created November 2, 2020 05:56

crop white background of an image

	def crop_white(image: np.ndarray, value: int = 255) -> np.ndarray:
	assert image.shape[2] == 3
	assert image.dtype == np.uint8
	ys, = (image.min((1, 2)) < value).nonzero()
	xs, = (image.min(0).min(1) < value).nonzero()
	if len(xs) == 0 or len(ys) == 0:
	return image
	return image[ys.min():ys.max() + 1, xs.min():xs.max() + 1]

sharkdeng / jaro-wrinkle.py

Created October 19, 2020 02:47

Jaro-wrinkle to compare string similarity (updated version of Jaro)


	def jaro(val1, val2):
	'''
	Computes the Jaro similarity between 2 sequences from:
	Matthew A. Jaro (1989). Advances in record linkage methodology
	as applied to the 1985 census of Tampa Florida. Journal of the
	American Statistical Association. 84 (406): 414–20.

	Returns a value between 0.0 and 1.0.

sharkdeng / jaro.py

Last active October 19, 2020 02:46

implementations of jaro similarity




	def jaro(val1, val2):
	'''
	Computes the Jaro similarity between 2 sequences from:

	Matthew A. Jaro (1989). Advances in record linkage methodology
	as applied to the 1985 census of Tampa Florida. Journal of the
	American Statistical Association. 84 (406): 414–20.

sharkdeng / slk-581.py

Created October 18, 2020 06:02

SLK-581 code



	def slk581(name, birthdate, gender):
	result = ''

	first_name, last_name = name.split(' ')

	# Take the 2nd, 3rd, and 5th letters of a record's family name (surname)
	if len(last_name) >=5 :
	result += last_name[1] + last_name[2] + last_name[4]

sharkdeng / soundex.py

Last active October 18, 2020 12:03

Soundex algorithm

sharkdeng / speech.html

Last active October 17, 2020 18:41

SpeechSynthesisUtterance-working-1

	<html>
	<head>
	</head>
	<body>
	<form>
	<input type='text'></input>
	<select id='voiceSelect'></select>
	<input type="submit"></input>
	</form>
	<script>

sharkdeng / detect_duplicates.py

Last active October 14, 2020 10:15

using imagehash to detect duplicates

sharkdeng / multiprocessing.py

Last active October 14, 2020 08:45

use multiprocessing to speed up

	# you have run this code in .py file (cannot be in .ipynb)
	# you have to add the head `if __name__ == '__main__':`

	if __name__ == '__main__':
	start = time.time()


	img_ids = df.image_id.values # a list
	pool = Pool(processes=multiprocessing.cpu_count())
	pool.map(crop_all_img, img_ids) # (function, list)

sharkdeng / crop.py

Created October 14, 2020 05:26

crop white of an image

	# Source: https://www.kaggle.com/lopuhin/panda-2020-level-1-2


	def crop_white(image: np.ndarray, value: int = 255) -> np.ndarray:
	assert image.shape[2] == 3
	assert image.dtype == np.uint8
	ys, = (image.min((1, 2)) < value).nonzero()
	xs, = (image.min(0).min(1) < value).nonzero()
	if len(xs) == 0 or len(ys) == 0:
	return image

sharkdeng / naviation1.swift

Created October 13, 2020 04:07

	import SwiftUI

	struct ContentView: View {
	var body: some View {
	NavigationView {
	NavigationLink(destination: Text("Second View")) {
	Text("Hello, World!")
	}
	.navigationBarTitle("Navigation")
	}