The purpose of our study is to introduce a new method for depth of field blur simulation used for compositing real and synthetic images in a realistic way. Existing methods do not simulate accurately the depth of field blur produced by photographic equipment. The problem is twofold: photometric and geometric. Existing methods based on convolution do not produce a realistic photometric rendering...

The waste photographic films/X-ray contains 1.5 2 % (w/w) black metallic silver which is recovered and reused. Around 18-20% of the world's silver needs are supplied by recycling photographic waste. Silver is a precious metal, further silver has wide uses like in jewellery, dentistry, photography, mirrors, optics, industries, etc. So the recovery of silver is beneficial in industrial, chemical ...

The unique results produced by simple studies of the Shroud of Turin sets this particular artifact apart from all other known artifacts. When photographed, the Shroud image appears more clearly to the human eye in the photographic negative than in the photopositive. When image-processed by a VP-8 Image Analyzer, the Shroud image produces a three-dimensional response unlike any other image so pr...

The traditional photographic process has been guided by a relatively fixed workflow: capture, develop, and print. With the advent of digital photography, however, the photographic print has largely become a relic of the past. Yet modern digital photography continues to focus on creating a single, final still image suitable for printing. This implicit association between a display pixel and a st...

Lith Printing is a photographic technique that overexposes negatives onto special purpose paper. Lith prints are becoming increasing popular because their visual appearance is considered to be: “Beautiful, different and personal. Its flexibility offers almost limitless ways of interpreting a negative” [TR98]. But, there are various problems associated with lith printing. It is difficult to dupl...

In most crimes where bite marks are discovered, photographic accuracy is crucial to the investigative process since in many instances the bite mark(s) may be the only evidence linking a particular suspect to the crime. Therefore, the rationale for employing superior photographic principles is mandatory for the investigation team. This paper will discuss current standards, best practice, and arm...

A means and apparatus for covert capture of extremely high-resolution photorealistic images is presented. The apparatus embodies a new form of user-interface – instead of the traditional “point and click” metaphor which was thought to be the simplest photography had to offer, what is proposed is a “look” metaphor in which images are generated through the natural process of looking around, in a ...