Introduction - If you have any usage issues, please Google them yourself
Remove Cloud
1. Combine 7 bands of Landsat image
Interpreter\Utilities\Layer Stack
Input file\Add
Output file
2. Open two images for remove cloud: two images with nearly time means that landuse has not much change (Ex: Jan 2000 and May 2000)
3. Create AOI:
Choose AOI tool\ choosing the symbol on AOI toool
Draw the Area of Interesting (that you want to remove cloud in the image jan 2000)
Save AOI: File\Save\AOI as Layer\File name: AOI_2000