jdhao’s gists

jdhao / Install-feh-on-centos.sh

Last active September 2, 2024 07:20

This script will install feh -- the simple image viewer, on your CentOS 7 system. Please make sure that you are using CentOS 7. See https://jdhao.github.io/2017/05/06/install-feh-image-viewer-on-centos/ for more details.

	echo "Installing dependency packages..."
	# install packages which can be found by yum
	yum -y install libcurl-devel libX11-devel libXt-devel libXinerama-devel libpng-devel

	# download and install packages which are not in yum repo
	wget ftp://ftp.pbone.net/mirror/ftp5.gwdg.de/pub/opensuse/repositories/home:/Kenzy:/modified:/C7/CentOS_7/x86_64/imlib2-1.4.6-2.1.x86_64.rpm
	wget ftp://ftp.pbone.net/mirror/ftp5.gwdg.de/pub/opensuse/repositories/home:/Kenzy:/modified:/C7/CentOS_7/x86_64/imlib2-devel-1.4.6-2.1.x86_64.rpm
	wget https://jaist.dl.sourceforge.net/project/libjpeg-turbo/1.5.1/libjpeg-turbo-official-1.5.1.x86_64.rpm
	yum --nogpgcheck localinstall imlib2-1.4.6-2.1.x86_64.rpm imlib2-devel-1.4.6-2.1.x86_64.rpm libjpeg-turbo-official-1.5.1.x86_64.rpm

jdhao / max_pooling.py

Last active October 25, 2022 07:41

A naive implementation just for illustrating how forward and backward pass of max-pooling layer in CNN works

	import numpy as np
	import numba

	class MaxPooling(object):

	def __init__(self, X, kernel_size=(2,2), stride=(2,2)):

	if len(X.shape) != 4:
	raise ValueError("Input must have be a tensor of shape NCH*W!")

jdhao / C++.sublime-build

Last active September 5, 2024 10:26

Sublime text 3 C++ build system to run C++ executable within sublime text or in a terminal emulator in cases that the program need input from standard input. This build system works on Linux, Windows and MacOS

	{
	"shell_cmd": "g++ -std=c++11 -Wall \"${file}\" -o \"${file_path}/${file_base_name}\" && \"${file_path}/${file_base_name}\"",
	"file_regex": "^(..[^:]):([0-9]+):?([0-9]+)?:? (.)$",
	"working_dir": "${file_path}",
	"selector": "source.c++, source.cpp, source.cc, source.cxx",

	"variants":
	[
	{
	"name": "Run in Terminal",

jdhao / gcc-5.4.0-install.sh

Last active February 20, 2024 08:46

The script will install GCC 5.4.0 on your CentOS 7 system, make sure you have root right. See https://jdhao.github.io/2017/09/04/install-gcc-newer-version-on-centos/ for more details.

	echo "Downloading gcc source files..."
	curl https://ftp.gnu.org/gnu/gcc/gcc-5.4.0/gcc-5.4.0.tar.bz2 -O

	echo "extracting files..."
	tar xvfj gcc-5.4.0.tar.bz2

	echo "Installing dependencies..."
	yum -y install gmp-devel mpfr-devel libmpc-devel

	echo "Configure and install..."

jdhao / resize_and_pad_image_to_square

Last active June 15, 2023 04:12

this script will resize and pad an image to desired square size and keep its aspect ratio unchanged. Before running the script, please change the size and image path to valid value.

	from PIL import Image, ImageOps
	import cv2

	desired_size = 368
	im_pth = "/home/jdhao/test.jpg"

	# im = Image.open(im_pth)
	# old_size = im.size # old_size[0] is in (width, height) format

	# ratio = float(desired_size)/max(old_size)

jdhao / calculate_trainset_mean_std.py

Last active September 20, 2023 06:36

This snippet will calculate the per-channel image mean and std in the train image set. It is plain simple and may not be efficient for large scale dataset.

	"""
	in this script, we calculate the image per channel mean and standard
	deviation in the training set, do not calculate the statistics on the
	whole dataset, as per here http://cs231n.github.io/neural-networks-2/#datapre
	"""

	import numpy as np
	from os import listdir
	from os.path import join, isdir
	from glob import glob

jdhao / Markdown2PDF.sublime-build

Last active December 28, 2021 02:13

This is a Sublime Text build system which converts Markdown file to PDF using Pandoc and supports both English and Chinese. Features are: numbered section; url color; highlighted inline code and code blocks; build and preview using Sumatra pdf reader

	{
	"shell_cmd": "pandoc -f markdown-raw_tex --pdf-engine=xelatex -N --highlight-style=espresso -H \"${packages}\"/User/head.tex -V CJKmainfont=\"Noto Sans CJK SC\" -V colorlinks \"${file}\" -o \"${file_path}/${file_base_name}.pdf\" ",
	"path": "C:/Users/east/AppData/Local/Pandoc/;%PATH%",
	"file_regex": "^(..[^:]):([0-9]+):?([0-9]+)?:? (.)$",
	"working_dir": "${file_path}",
	"selector": "text.html.markdown",

	"variants":
	[
	{

jdhao / autocommands.vim

Last active July 29, 2022 17:18

My Neovim configurations for both terminal and gui (using nvim-qt). Repo: https://github.com/jdhao/nvim-config

	"{ Auto commands
	" Do not use smart case in command line mode,
	" extracted from https://goo.gl/vCTYdK
	augroup dynamic_smartcase
	autocmd!
	autocmd CmdLineEnter : set nosmartcase
	autocmd CmdLineLeave : set smartcase
	augroup END

	" Set textwidth for text file types

jdhao / config.toml

Created October 10, 2018 17:50

my hugo site configuration

	baseURL = "https://jdhao.github.io/"
	theme = "even"

	# languageCode is used for rss generation,
	# see https://github.com/gohugoio/hugo/issues/349
	languageCode = "en-us"

	# do not change `en` to `en-US`, this is defined under
	# even/i18n/en.yaml, so the name must be `en`
	defaultContentLanguage = "en" # en / zh-cn / ... (This field determines which i18n file to use)

jdhao / 通用规范汉字表.txt

Last active February 16, 2019 10:40

国务院发布的《通用规范汉字表》

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