I have to translate satellite images in a file in
.txt format or another, such as Excel or
.csv, in which there are pixel values corresponding to (longitude,latitude) couples. What is the best file format to store this (in terms of dimension and limits of the file because pixels number is in the order of 10^5)?
In your experience, is a matrix format representation better or a columns representation (one column is for longitude, one for latitude and one for value, so every row of the text corresponds to a pixel)?