Changing the values of the cells in a raster.
8
votes
2answers
2k views
How to perform Raster Reclassification in QGIS?
Is there a way to do reclassify a raster image to Qgis?
In Arcgis you can do that in Spatial analyst Tools-->Reclass-->Reclassify
Any ideas?
4
votes
1answer
445 views
How to reclassify in Rastercalc?
I now need to reclassify, I'm using rastercalc... but I can't get the syntax right!!
I need that values >0 become 1
I found this example...
eq( [relief]@1, [mask]@4, 150 )
so I tried:
( [raster A ...
8
votes
2answers
358 views
How to reclassify a very large land cover dataset?
Consider the NLCD2001 Land Cover dataset for Alaska (download link). I need to reclassify this dataset so that only pixels of value 41, 42, and 43 are preserved; all other pixel values should become ...
5
votes
2answers
447 views
Raster to Vector: Displaying classes in Vector Layer - GRASS GIS
I use Maximum Likelihood classification to classify Landsat image into two landuse classes - one of my interest and rest including all others. Inorder to assess the accuracy I export it in vector ...
3
votes
1answer
702 views
ReClassify Vector Data Between Values
I would like to be able to take all values between 1 and 10 and have a field define them as 1, and all values between 10 and 20 and set them to 2, how do I do that with vector data?
I read how to set ...
