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Acquisition des images numériques

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Digital Photography Tutorials. Learn how to take and edit digital photographs using visual tutorials that emphasize concept over procedure, independent of specific digital camera or lens. This is a complete listing of all tutorials on this site; click the drop-down links in the top menu to see particular topics. Photography is going through an exciting transition period as many film photographers are beginning to explore the new capabilities of digital cameras. While the fundamentals have remained similar, other aspects are markedly different. This is a great time to get involved with digital photography. These tutorials are rarely influenced by changes in image editing software and camera equipment — due to their unique concept-based approach. Most tutorials therefore apply to both compact and digital SLR cameras. View in other languages: Português Русский Deutsch Français Italiano. The Scientist and Engineer's Guide to Digital Signal Processing.

ShortCourses- How a Digital Camera Works. Digital cameras are very much like all earlier cameras. Beginning with the very first camera all have been basically black boxes with a lens to gather the light, a wheel you turned to focus the image, an aperture that determines how bright the light is, and a shutter that determines how long the light enters. Both the earliest cameras and the most state-of-the-art models available today are really just black boxes.

The big difference between traditional film cameras and digital cameras is how they capture the image. Instead of film, digital cameras use a solid-state device called an image sensor. In some digital cameras the image sensor is a charge-coupled device (CCD), while in others it's a CMOS sensor. Both types can give very good results. On the surface of these fingernail-sized silicon chips are millions of photosensitive diodes, each of which captures a single pixel in the photograph to be. It's All Black and White After All There's a Computer in Your Camera. Image Sensors and Signal Processing for Digital Still Cameras. Single-Sensor Imaging: Methods and Applications for Digital Cameras.