For the most accurate results from NormalizeScaleGradient, you need to purchase a license for the C++ module NSGXnml. This runs in the background and enables all of NSG's extra capabilities.
Customer reviews are available on the Home page.
A single user license for NSGXnml costs £20 GBP (UK Sterling). This is approximately equivalent to €22.50 Euros, or $24 US dollars (February 2023). The license can be used on all of your computers, and on any of the supported operating systems. All future updates are included. Your purchase will help fund the development and support of both NormalizeScaleGradient (NSG) and PhotometricMosaic (PMM).
If you have previously supported my hard work via https://ko-fi.com/jmurphy, this will be discounted from the price. Be sure to mention this in your purchase email. Thank you for your support!
Send me an email with 'Purchase NSG' in the title.
Please include your full name in the email.
Email: johnastro.info[at]gmail.com
Replace [at] with @ (I used [at] to avoid automatic spam).
I will then send you a PayPal request.
Credit Card:
Use the Support me
button at the bottom of this page to pay
£20 (Donate 4 x £5 'coffees').
Your name: Provide your full name.
Your message: Purchase NSG Ref: Your Name
Send me an email with 'Purchased NSG (ko-fi)' in the title.
Please include your full name in the email so that I can match it with the ko-fi payment.
I will then reply to your email to send you the license key
Email: johnastro.info[at]gmail.com
Replace [at] with @ (I used [at] to avoid automatic spam).
There is a PixInsight install bug that only affects macOS. My website describes an install workaround which usually works. However, if you use macOS, please install the NSGXnml C++ module before you purchase NSG to ensure the install works. See: Repository
To download and install, see the Repository page.
To activate the license, see the License page.