Get raster values for points in a map with QGIS
To get raster values you need to install "Point sampling Tool" from plugins list.
Next, you must create a layer with points over the pixels from your raster layer.
If you click on "Point sampling Tool" icon or from Plugins/Analyses option you would get raster values from each vectorial points.
As you see in the image, each point is in a different raster color, therefore each one has an own value.