How to Extract Land Use Classes using QGIS Raster Calculator

You can use the Raster Calculator to perform various operations on a Land Use/Land Cover (LULC) raster dataset.
Also, you can use the Raster Calculator to extract specific classes from a Land Use/Land Cover (LULC) raster dataset. Here's how you can do it:
1. Identify Classes: First, identify the classes you want to extract from the LULC raster. These could be individual land cover types such as forest, water bodies, urban areas, etc.
2. Build Expression: Use the Raster Calculator to create an expression that selects pixels corresponding to the classes you want to extract. The expression will typically involve a conditional statement that evaluates each pixel's value and assigns a new value (e.g., 1 for the class of interest and 0 for all other classes).
3. Run Calculation: Execute the expression in the Raster Calculator to generate a new raster layer where only the selected classes are represented.
4. View Results: Once the calculation is complete, you can visualize the extracted classes in the resulting raster layer.

[@traveauxdinstallation6017]

Hi sir .
Do you have any ideas how to make analyse AHP on qgis 2.18.15please

[@SurveyingSolution]

It's something I can look into, if possible.

[@traveauxdinstallation6017]

@@SurveyingSolution can i have your email to give details please?

[@SurveyingSolution]

​@traveauxdinstallation6017
Please reach out via this email [e-mail]
Thank you.