Hey presently I am making niche sites and writing the whole content after researching from different sites. Since I am writing everything myself, the content is 100% unique and i checked it on copyscape it found no duplicate pages at all. Its high quality content. I am spending some good time on it. But to make content interesting I am getting images from google images and uploading them on my wordpress blog. Ofcourse they are duplicate images (no i cant create images on my own that would be almost impossible, I'm not a photographer) I am concerned if using duplicate images taken from other sites will hurt my rankings? Will it attract duplicate content penalty? Content is 100% unique but only the images are scraped. I do change the image pixel size a bit before uploading. I tried adding watermark , compressing adding few colors to image. none helps it is still detected as copy in "tineye". Any ideas? do i need to worry for images or not?