I need to calculate the quartile value (e.g. 75%) of the pixels of a raster layer within a polygon file. I try to do that using QGIS, and found that the zonal statistics might be able to do that. But I only find the below options with the zonal statistics: Count; Sum; Mean; Median; StDev; Min; Max; Range; Minority; Majority; Variety.
Any solution to calculate the quartile value in QGIS?