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@marcan
marcan / canon-ef-protocol-notes.md
Last active June 3, 2024 16:55
Canon EF protocol notes

Testing done using a Canon EOS 600D and a Canon EF-S18-55mm f/3.5-5.6 IS II.

Pinout

  1. VBAT
  2. DET (common with P-GND on lens side)
  3. P-GND
  4. VDD
  5. DCL
  6. DLC
@yohhoy
yohhoy / ff2cv.cpp
Last active April 12, 2024 06:49
Read video frame with FFmpeg and convert to OpenCV image
/*
* Read video frame with FFmpeg and convert to OpenCV image
*
* Copyright (c) 2016 yohhoy
*/
#include <iostream>
#include <vector>
// FFmpeg
extern "C" {
#include <libavformat/avformat.h>
@rglastra
rglastra / gist:3ef9582c6292470a1743
Last active September 2, 2022 16:23
Check available certs in ca-certificates.crt by subject.
#!/bin/bash
echo "All certificates in ca-certificates.crt, listed by subject:"
awk -v cmd='openssl x509 -noout -subject' '/BEGIN/{close(cmd)};{print | cmd}' < /etc/ssl/certs/ca-certificates.crt
echo "All certificates in ca-certificates.crt, listed by subject, check for presence of VeriSign's 'Class 3 Public Primary - G5':"
awk -v cmd='openssl x509 -noout -subject' '/BEGIN/{close(cmd)};{print | cmd}' < /etc/ssl/certs/ca-certificates.crt | grep "G5"
@KrisKusano
KrisKusano / AUC.m
Created June 24, 2014 16:26
compute AUC for Kaggle Competition results
function auc = AUC(pred, act)
%% compute the AUC for Kaggle competitions
% auc = AUC(pred, act) returns the AUC value on [0, 1]. pred is the predicted
% class membership, {0, 1}, and act is the actual class membership, also {0, 1}
%
% Sources:
% http://link.springer.com/article/10.1023%2FA%3A1010920819831
% http://www.kaggle.com/c/SemiSupervisedFeatureLearning/forums/t/919/auc-implementation/6130
%
% Kristofer D. Kusano - 6/24/14
@grenade
grenade / 01-generate-ed25519-ssh-key.sh
Last active July 11, 2024 10:06
generate ed25519 ssh and gpg/pgp keys and set file permissions for ssh keys and config
#!/bin/bash
# generate new personal ed25519 ssh keys
ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_ed25519 -C "rob thijssen <rthijssen@gmail.com>"
ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_robtn -C "rob thijssen <rob@rob.tn>"
# generate new host cert authority (host_ca) ed25519 ssh key
# used for signing host keys and creating host certs
ssh-keygen -t ed25519 -f manta_host_ca -C manta.network