The Infragram Sandbox is a browser based tool for experimenting with image compositing, intended for use with Public Lab Infragram cameras.

Read this research note and watch this short video to get a quick idea of how to use it:

Infragrammar

Infragram Sandbox uses simple math expressions, which are actually written in JavaScript. Here are some examples:

• NDVI = (R-B)/(R+B) for -1..1, or for 0..1 (((R-B)/(R+B))+1)/2
• ENDVI = ((R+G)-(2B))/((R+G)+(2B)) which MaxMax uses for its vegetation stress cameras
• (add yours here)

Math

Infragrammar can use JavaScript math functions. These include:

• Math.log() - logarithms
• Math.abs() - absolute value
• Math.sin() - sine

Sliders

You can also link an equation to a slider; for now we are using the letter "S" to represent this value, but in the future, any string represented as {mystring} will generate a slider called "mystring". Move the slider to try different values in real time.