image repository with noise for testing [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. 开发者_StackOverflow中文版 Closed 11 years ago.

I need set of gray scale images with random noise to do some testing.

I have searched and found many images but without noise.

Or maybe some easy way to add a random noise to an image.

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For image processing you could use The Gimp which is a great image processing tool (There are another alternatives like Photoshop and Paint Shop Pro).

Also, if you want to add the noise programatically you should state what environment are you working with so we can help you.