system performs significantly better and faster than existing ones. The system is fairly robust to image alterations.

with image contrast reflecting the blood oxygen level. This blood oxygenation level-dependent (BOLD) contrast follows blood oxygen changes induced by anesthetics, by insulininduced hypoglycemia, and by inhaled gas mixtures that alter metabolic demand or blood flow. The results suggest that BOLD contrast can

change the expression of the content. In this paper we describe a semi-fragile watermark for still images that can detect information altering transformations even after the watermarked content is subjected to information preserving alterations.

, before proposed a technique for image validation by detection of four basic image manipulation operations with overcome the challenge of copy-move forgery detection, first, discussed how to detect basic image alteration operations that are often applied on forged images and challenges of copy

This paper discusses methods for assigning codewords for the purpose of fingerprinting digital data (e.g., software, documents, and images). Fingerprinting consists of uniquely marking and registering each copy of the data. This marking allows a distributor to detect any unauthorized copy

Objective: Although there have been case reports suggesting a relationship be-tween treatment with the acne medica-tion isotretinoin and the development of depression and suicide, this topic remains controversial. In order for isotretinoin to cause depression, it must have an effect on the brain; however, the effects of isotretinoin on brain functioning in acne patients have not been established. The purpose of this study was to assess the ef-fects of isotretinoin on brain functioning in acne patients. Method: Brain functioning in adults was measured with [18F]fluorodeoxyglucose

imaging (fMRI) to investigate whether activity in place area (PPA) during binocular rivalry in which a human extrastriate cortex is correlated to visual aware- face and a house stimulus were presented to different ness during binocular rivalry, and, more specifically, eyes. Though retinal

Figure 1: Global distribution of BC sources and radiative forcing. a, BC emission strength in tons per year from a study by Bond et al. Full size image (42 KB) Review Nature Geoscience 1, 221 -227 (2008 Black carbon in soot is the dominant absorber of visible solar radiation in the atmosphere

With the advent of low-cost and high-resolution digital cameras, and sophisticated photo editing software, digital images can be easily manipulated and altered. Although good forgeries may leave no visual clues of having been tampered with, they may, nevertheless, alter the underlying statistics

The unique stature of photographs as a definitive recording of events is being diminished due, in part, to the ease with which digital images can be manipulated and altered. Although good forgeries may leave no visual clues of having been tampered with, they may, nevertheless, alter the underlying