Digital Cameras

The development of inexpensive digital cameras and easy-to-use image editing software has brought digital photography capability into mainstream use. Hand-in-hand with the proliferation of digital cameras is the emergence of associated software and services that allow users to organize and catalog the sometimes hundreds of digital photographs stored on their PCs, as well as to share the photos with friends, family, and customers over the Internet or as traditional prints. These software packages and services are typically separate, un-integrated services that can be difficult to set up and use. In response to this customer need, Dell recently launched the Dell Picture Studio, a complete, integrated digital photography solution that is factory-installed on new consumer Dell Dimension desktop and Inspiron portable computer systems. This whitepaper provides a short overview of Dell Picture Studio and the functions it performs. tech news

This white papers describes the various modes of operation common to digital still cameras with audio-video capabilities on the market today. It also uncovers the common embedded development challenges many DSC manufacturers face when designing digital cameras. tech news

Digital still cameras (DSC) are rapidly proliferating as technology adds new capabilities and improves image quality and utility by allowing pictures to be printed after taking them, as well as reducing power consumption, cost, and increasing picture storage. This article explores the more complex design of a consumer camera, the technologies being applied today to improve DSC quality and utility, and new methodologies needed to address these complex design issues. tech news

Spectral based color image editing systems include methods for generating spectral representations of surfaces and illuminants from input signals of image capture devices (such as digital cameras and scanners), editing spectral representations of surfaces and illuminants in a scene, and transforming spectral representations of surfaces and illuminants to output signals of image devices (such as CRT and LCD displays and color printers). tech news

This report describes and verifies response models for digital color cameras. We investigated two specific cameras, the Kodak DCS-200 and the Kodak DCS-420. For each camera, we measured the RGB camera responses for various combinations of source wavelength, source intensity, and camera exposure duration. We also measured the dark noise for each camera. We found that the DCS-200 is characterized by a linear intensity-response function, while the DCS-420 requires the addition of a static non-linearity. Our models may be used to process raw camera responses when intensity-calibrated sensor data are required. Possible applications include color balancing, demosaicing, and image restoration. tech news