How Photographs Infringe

How Do People Organise Their Photographs?

Increasing use of digital cameras will lead to more people having large personal collections of digital photographs. The study described in this paper set out to gain some insight into how computer-based systems to help people organise these images might be designed. Firstly, taking inspiration from earlier work by others on the management of personal documents, we interviewed people about the ...

How to measure color using spectrometers and calibrated photographs.

The measurement of color in biology has become increasingly common. These measurements are not limited to color vision research, but are also found in studies of communication, signaling, camouflage, evolution and behavior, and in the examination of environmental, artificial and biogenic light. Although the recent availability of portable spectrometers has made it simpler to measure color, guid...

Photographs

Negative emotional photographs are identified more slowly than positive photographs.

In three experiments, we investigated whether the emotional valence of a photograph influenced the amount of time required to initially identify the contents of the image. In Experiment 1, participants saw a slideshow consisting of positive, neutral, and negative photographs that were balanced for arousal. During the slideshow, presentation time was substantially limited (60 ms), and the images...

Distinguishing paintings from photographs

We addressed the problem of automatically differentiating photographs of real scenes from photographs of paintings. We found that photographs differ from paintings in their color, edge, and texture properties. Based on these features, we trained and tested a classifier on a database of 6000 paintings and 6000 photographs. Using single features results in 70–80% correct discrimination performanc...