Creating an RGB image from MER and Phoenix data in Using the Analyst's Notebook A group blog by Geo Staff in General Posted March 17, 2020 Hi Dane - You are correct...the Analyst's Notebook has changed a lot over the past 8 years. The procedure is largely the same, although the resulting image is downloaded rather than popped open, as you say. It is important to note that the RGB is created using a simple algorithm that performs a 2% linear stretch on the source images and then assigns them to the red, green, and blue channels to make the composite image. Ideally, one would want to perform custom stretches on radiometrically calibrated source images using image processing software such as ENVI. The scene content affects the Notebook's default linear stretch and thus how the simple RGB looks. What is the image you are working with? And how important is it to you to have the custom image pop up in a browser tab vs direct download?