To understand how the digital camera is likely to convince you to switch to digital cameras. Digital cameras are quite similar to the traditional cameras to their activities.
They both are the focus of the lens in the image of the sizing bar of light inside the camera and photograph of a mesh size that will be the amount of the camera.
Digital and traditional photography, differences occur when light enters the camera.
The traditional camera captures on film, digital images, but the camera captures the CCD sensor of the picture.
Image sensors are an array of electrodes (or photosites) are electronic devices which measure the intensity of the light.
The CCD sensor is the most common digital cameras, CCD (CCD-sensor), although others such as Foveon CMOS and is sometimes used.
Sensor photosites of the digital camera is its megapixel (million pixels) rating.
Each photosite corresponds to the final image in pixels, so the camera, which has been classified as a six megapixel image is, for example, sensor, which is 3008 pixels (width) x 2000 pixels.
When the light hits a CCD sensor is converted into electrical signals on it by the monitoring measures and the analog to digital (A/D) converter into the food.
A/D converter changes the electrical signal as binary, which deals with computer housed in a camera body.
Photosites can be measured only in the colour of the light-to-no color. The color image to produce each photosite is covered with a colored filter, which may be red, blue or green.
These are the three primary colors that can be combined to produce other colours including white.
Coloured filters, arranged in a grid, so that is two times the Green filters, which are red or blue. This is due to the human eye is twice as sensitive to green light.
The filters are arranged is called the Bayer pattern-one row of red, green, red, green, (etc.) and the blue, green, blue, green (etc) the following line in the pattern.
How a digital camera works: data processing
Because each photosite can cover only a single colored filters, computer processing is necessary to produce the whole picture in coloured.
This is done in each of the analysed and the pixel to its immediate neighbors and producing these calculations on the composite color.
For example, if a bright red pixel is surrounded by the bright green and bright blue pixels, bright red pixel is actually be white, because white is a combination of red, blue, and green.
This process is called demosaicing.
The camera's image will be adjusted after Demosaicing in accordance with the regulations.
Most of the cameras is the brightness, contrast, and saturation settings.
After these adjustments at some cameras may also relate to the algorithm to make clearer image-sharpening.
How a digital camera works: file format
Before you save the image to the Flash memory card on the last step is to collapse.
Most cameras use the JPEG compression format. This reduces the file size by removing redundant information. These data cannot be restored to, so called "yhteysorientoituneet" (JPEG) format.
Many of the cameras is the ability to save images in uncompressed TIFF files or raw data.
Raw data is the original information, even before the photosite demosaicing. It can be moved to a special processing software, which runs all the camera's processing functions, but much to control your computer.
I hope this article gives a clearly to understand how digital digital camera works.
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