Raster values shows no data when using identify features tool

How do I identify a raster in Qgis?

You can identify a raster by clicking the icon Identifier (i<- icon) and clicking on the somewhere on a layer in the working area. A (docked) panel Identifying results should appear with a list of elements placed under the pointer.
 

How do I remove no data values from raster Qgis?

Step 1: Right-click on the raster layer and select Properties. Step 2: Go to the Transparency tab, and add “0” as an Additional no data value, since in our case the unnecessary portion of the image is black. That is it!
 

How do I identify a feature in Qgis?

In the layers panel, Single left click where it says “Acess_deprivationLeeds”. This will allow us to identify features from that layer. Press the ‘Identify features button’/. It allows you to interrogate features on the map by clicking on them (see Figure 4.1).