Hi Folks
Does anyone have a script to calculate the histogram of an image and then perform a linear contrast stretch using either pixel values or percentage clips values.
At present using a per pixel min/max stretch but this is not the usual way to enhance imagery.
Grateful of any ideas. My javascript experience is limited (but growing) any python non-exsitent.
You can do a statistical API request first to find out the min/max/historgram values
Then use stretch function.
Some further ideas can be found here:
Medium – 27 Oct 17
Poor Man’s Atmospheric Adjustment for a Pretty Glacier Picture
Reading time: 10 min read
If you want to go into more scientific details, read this paper:
sciencedirect.com
The true color composite is a widely used Earth observation product for displaying satellite imagery. As it is often used in communication with non-ex…
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.
©
Planet Labs PBC. All rights reserved.
|
Privacy Policy
|
California Privacy Notice
|
California Do Not Sell
Your Privacy Choices
|
Cookie Notice
|
Terms of Use
