Do you? I don't. I'm using google.co.uk on PC, with both Chrome and Firefox, and can always freely get the image this way.

You do have to wait for the image to have fully loaded, mind, but otherwise it's quite literally embedding the image anyway - right-click, View Image, and you've got it.

You're right clicking the tiled image on the results page.

If you left click a result first to give it focus, and then right click->open in new tab you'll get the original, full size, image.