celoyd

Pansharpening notes, mid-2021

First posted in August 2021. This is basically a snapshot of my thinking about pansharpening at that time; I’m not making any substantial updates. Last typo and clarity fixes in February 2023.

Preface

This is a collection of notes on how I’ve been approaching convolutional neural networks for pansharpening. It’s an edited version of an e-mail to a friend who had asked about this tweet, so it’s informal and somewhat silly; it’s not as polished as, say, a blog post would be. It’s basically the advice I would give to an image processing hobbyist before they started working on pansharpening.

If you want a more serious introduction, start with the literature review in Learning deep multiresolution representations for pansharpening. Most of the academic work I would recommend is mentioned there.

ian-whitestone

"""
Read accompanying blog post: https://ianwhitestone.work/Zappa-Zip-Callbacks
"""
import os
import re
import shutil
import tarfile
import zipfile

miguelgrinberg

import asyncio
loop = asyncio.get_event_loop()

async def hello():
    await asyncio.sleep(3)
    print('Hello!')
    
if __name__ == '__main__':
    loop.run_until_complete(hello())
    

bobbytables

#!/usr/bin/env bash
# This script is meant to build and compile every protocolbuffer for each
# service declared in this repository (as defined by sub-directories).
# It compiles using docker containers based on Namely's protoc image
# seen here: https://github.com/namely/docker-protoc

set -e

REPOPATH=${REPOPATH-/opt/protolangs}
CURRENT_BRANCH=${CIRCLE_BRANCH-"branch-not-available"}

kelseyhightower

// Compile with:
//   GOOS=linux go build -a --ldflags '-extldflags "-static"' -tags netgo -installsuffix netgo -o dns-example main.go
//
// Run on Kubernetes. Example resolv.conf
//
// # /etc/reslov.conf
// search default.svc.cluster.local svc.cluster.local cluster.local google.internal c.hightowerlabs.internal
// nameserver 10.179.240.10
// options ndots:5
//

fntlnz

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

subfuzion

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.

hirobert

from flask import abort, make_response, jsonify
abort(make_response(jsonify(message="Message goes here"), 400))

pfigue

Connect and Select

connect()

The shortest connect:

from psycopg2 import connect
psql_conn = connect("dbname=XXX user=XXX password=XXX host=localhost sslmode=require")
psql_conn.close()

9point6

#!/usr/bin/env bash

# Check we've got command line arguments
if [ -z "$*" ] ; then
    echo "Need to specify ssh options"
    exit 1
fi

# Start trying and retrying
((count = 100))