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@dwf
dwf / patches.py
Created April 14, 2010 19:49
Some patch extraction code I'm using to process images.
import os
import numpy as np
import scipy.ndimage as ndimage
import matplotlib
import matplotlib.pyplot as plt
def frac_eq_to(image, value=0):
return (image == value).sum() / float(np.prod(image.shape))
def extract_patches(image, patchshape, overlap_allowed=0.5, cropvalue=None,
@marcetcheverry
marcetcheverry / mapread.c
Created May 25, 2011 14:05
mmap and read/write string to file
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <unistd.h>
int main(int argc, const char *argv[])
{
@ashelly
ashelly / mediator.c
Created May 28, 2013 20:36
Running Median. Finds the median of the last K inputs in O(lg K). See http://stackoverflow.com/q/5527437/10396 for some details.
//Copyright (c) 2011 ashelly.myopenid.com under <http://www.opensource.org/licenses/mit-license>
#include <stdlib.h>
//Customize for your data Item type
typedef int Item;
#define ItemLess(a,b) ((a)<(b))
#define ItemMean(a,b) (((a)+(b))/2)
typedef struct Mediator_t
@Madsy
Madsy / gist:6980061
Last active June 1, 2024 08:57
Working multi-threading two-context OpenGL example with GLFW 3.0.3 and GLEW 1.8
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#include <vector>
#include <cmath>
#include <cstdio>
#include <limits>
#include <chrono>
#include <thread>
#include <mutex>
@Integralist
Integralist / GitHub curl.sh
Last active June 18, 2024 23:31 — forked from madrobby/gist:9476733
Download a single file from a private GitHub repo. You'll need an access token as described in this GitHub Help article: https://help.github.com/articles/creating-an-access-token-for-command-line-use
curl --header 'Authorization: token INSERTACCESSTOKENHERE' \
--header 'Accept: application/vnd.github.v3.raw' \
--remote-name \
--location https://api.github.com/repos/owner/repo/contents/path
# Example...
TOKEN="INSERTACCESSTOKENHERE"
OWNER="BBC-News"
REPO="responsive-news"
set set target.max-string-summary-length 10000
@protrolium
protrolium / ffmpeg.md
Last active June 15, 2024 01:28
ffmpeg guide

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

You can get the list of installed codecs with:

@junzis
junzis / lowpass.py
Last active December 6, 2022 08:16
Python Lowpass Filter
# https://stackoverflow.com/questions/25191620/
# creating-lowpass-filter-in-scipy-understanding-methods-and-units
import numpy as np
from scipy.signal import butter, lfilter, freqz
from matplotlib import pyplot as plt
def butter_lowpass(cutoff, fs, order=5):
nyq = 0.5 * fs
@waveacme
waveacme / DecodeActivity.java
Created January 15, 2016 08:30
MediaCodec decode h264 example
//from https://github.com/vecio/MediaCodecDemo
package io.vec.demo.mediacodec;
import java.nio.ByteBuffer;
import android.app.Activity;
import android.media.MediaCodec;
import android.media.MediaCodec.BufferInfo;
@subfuzion
subfuzion / curl.md
Last active July 3, 2024 11:43
curl POST examples

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.