Protecting Images by Blurring Them

Digital blur is mathematical, so if the math that created the blur is known (or correctly guessed), it can be reversed digitally to some extent. Gaussian Blur is one of the most common and basic types of blur, so it should be one of the easiest to reverse. Do a web search for “unblur” or “reverse blur” and you’ll see many potential solutions, although they are not all equally effective.

If you wanted more secure obfuscation using Photoshop, you could try techniques like running an image through multiple blur types, inserting a non-blur distortion step such as the Mosaic filter (that blocky effect), or applying different blurs or filters to different regions of the image. That would make it harder to successfully reverse it, because someone would have to figure out the technique used in every step, and in the correct sequence. Photoshop has tools such as actions and scripts that can automate multi-step processes, and it also has batch processing so you can apply a multi-step process to many photos, such as an entire folder.

Hi,

I am wondering why you are putting your images of products up on the web, if you are concerned about them being taken?

If you wan to blur the image, using Gaussian Blur would work well because as Babara said above, with enough blurring the "unblurring" programs can't detect how to sharpen it. 

Michelle