Digital compression of video images is a common occurrence. There are legitimate and laudatory reasons for such compression. Among those reasons are the fact that more data can be stored…
Editing of Images: When Do You Cross the Line?
Related to concerns with authentication, one of the most pervasive suspicions regarding digital image evidence is that the images have been surreptitiously edited in such a manner as to present…
Image Accuracy: Why the Correct Aspect Ratio Matters
Part of the process of authenticating a video image is to show that the image is an accurate depiction of what the camera recorded. One important technical issue bearing upon…
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