It really depends on the context of how you use the image again. If your content centers around that image and it's shared more than once as the only focus i would say yes. But, i used to use and image of a Mushroom that i shot in the shape of a heart as my closing image. If you go back far enough in my posts you can't miss it. I didn't center my content around that image except for the one time i posted about it. Reusing that image wasn't recycling because it wasn't really the content being reused in a recycling kind of taking advantage of the rewards kind of way. I hope that made sense.