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May 17 / admin

Any Color

Any Color

Color depth of the pixels or bits per pixel digital photos

Digital photos are built of pixels. Each pixel has a unique value that represents color. When we look at a digital image of your eyes and brain to combine these pixels in a digital camera continuously. Each pixel has a color value which is one of a finite number of colors available, this number is known as color depth.

Each pixel has a color value which is a unique color palette. The number unique color known as potential depth of color. Color depth is also known as bit depth or bits per pixel, since a number of bits used to represent a color and there is a direct correlation between the number of bits and the number of unique colors possible. For For example, if a pixel color is represented by a bit – a bit per pixel or bit depth of 1 – pixel values can only have two single or two colors only these colors are usually black or white.

Color depth is important in two areas: the entry or graphic source and the output device when the source is shown. Each source of digital photos or graphic sources are listed in output devices such as computer screens and printed paper. Each source has a color depth. For example, a digital camera can have a color depth of 16 bits. Font color depth depends on how it was created, for example, the color depth sensor camera used to take Digital camera. Color depth is independent of the output device is used to display digital photography. Each output device has a depth of color maximum support and can also be set at the lower color depth (usually to save resources such as memory). If an output device has a depth color greater than the output of the source device is not used fully. If an output device has a color depth below the power output of the device shows a version lower quality of the source.

Many times you hear a deep color expressed in number of bits (or bits per pixel bit depth). Here is a table bits of the common values of pixels and the number of colors that represent:

  • A little: only two colors are compatible. In general, it is black and white, but can be any two colors. Used for fonts in black and white and in rare cases of black and white screens.
  • 2 bits: 4 colors are compatible. Hardly used.
  • 4 bits: 16 colors are compatible. Hardly used.
  • 8-bit: 256 colors are supported. It uses simple graphics and icons. Digital photos are displayed in 256 colors of low quality.
  • 12-bit: 4096 colors are supported. Not used with a computer screen, but sometimes the color depth is used by devices such as PDAs and mobile phone. The reason is that the color depth of 12-bit is the limit of high-quality viewing of digital photos. Less than 12-bit sample of distorting the colors of photography also digital. The lower the color depth of less memory and resources are required and these devices are limited recourse.
  • 16 bits: 65536 colors are compatible. Offers color photos of high quality digital display. This deep color is used by many computer screens and portable devices. 16-bit color depth is sufficient to show the colors of the photo Digital, which are very close to real life.
  • 24-bit: 16,777,216 (about 16 million) colors are compatible. This is also known as "true color". The reason that the name is Nick is considered 24-bit depth color more than the number of unique color to our eyes and brain can see. So, using the color depth of 24 bits can display digital photos on the actual colors real life.
  • 32-bit contrary to what some people believe that 32-bit color depth is not compatible with 4,294,967,296 (approximately $ 4 million) colors. In fact, the color depth of 32 bits 16,777,216 colors is the same number as the 24-bit color. The reason for the existence of a depth of 32-bit color is mainly to accelerate the performance optimization. Like most teams use the bus 32-bit multiplications, which are more efficient from 32 pieces of data bits. 24-bit 32 are used to describe the color of the pixel. The 8 additional bits are left blank or used for other purposes such as transparency indicating or some other effect.
  • About the Author

    Information about photography and photo prints is on printrates.com – your home for cameras and printing This article can be reprinted only if the resource box including the backlink is included. Ziv Haparnas writes about practical technology issues.

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