Carving Thumbnail/s and Embedded JPEG Files Using Image Pattern Matching
نویسندگان
چکیده
منابع مشابه
Carving Thumbnail/s and Embedded JPEG Files Using Image Pattern Matching
Images (typically JPEG) are used as evidence against cyber perpetrators. Typically the file is carved using standard patterns. Many concentrate on carving JPEG files and overlook the important of thumbnail in assisting forensic investigation. However, a new unique pattern is used to detect thumbnail/s and embedded JPEG file. This paper is to introduce a tool call PattrecCarv to recognize thumbn...
متن کاملAccess and Retrieval from Image Databases Using Image Thumbnails
The emerging role of thumbnail images in the selection of images for display from large image databases and via network access requires that the characteristics of thumbnails be seriously studied. We introduce a measure of effective compression Ceff(p) that is a function of the probability p that thumbnail access will be followed by the display of a full-scale image. For credible values of p, w...
متن کاملLine Extraction Using Image Carving
A line extraction method based on image carving is presented in this paper. The gradient magnitude of a pixel is taken as the point-importance of the pixel. The length of the line where the pixel lies, is considered as the lineimportance of the pixel. Iteratively, those pixels, whose point-importance value is less than an updated pointimportance threshold and whose line-importance value is less...
متن کاملText Image Compression Using Soft Pattern Matching
We present a method for both lossless and lossy compression of bi-level images that consist mostly of printed or typed text. The key feature of the method is soft pattern matching, a way of making use of the information in previously encountered characters without risking the introduction of character substitution errors. We can obtain lossless compression which is about 20% better than that of...
متن کاملVehicle Logo Recognition Using Image Matching and Textural Features
In recent years, automatic recognition of vehicle logos has become one of the important issues in modern cities. This is due to the unlimited increase of cars and transportation systems that make it impossible to be fully managed and monitored by human. In this research, an automatic real-time logo recognition system for moving cars is introduced based on histogram manipulation. In the proposed...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Software Engineering and Applications
سال: 2013
ISSN: 1945-3116,1945-3124
DOI: 10.4236/jsea.2013.63b014