Know term "Bit Depth"

The term "Bit Depth" for you are often associated with computer graphics would be familiar, or at least you've heard even utter the term above when conversing with colleagues about the graphics card, display monitor, or an image file format. In this article we will know more about what it is "Bit Depth".



Yes and No
Bit is the smallest unit of information that can be understood by computers. Bits represent 2 state; "Yes" and "No" (in other terms Positive / negative, or the notation 0/1). The information in the computer is handled by way of explaining things with "Yes" or "No", including the monitor screen. The monitor was developed by small squares (pixels / cell) which contains information / bits that determine what color will ditampilkan.Untuk understand bits, we take the example of a monitor screen in black and white (1 bit), if the pixel states "Yes" then a box will be white, if the pixel states "No" then the box will be black.

In the pixel is capable of displaying 2-bit color, meaning there are two statements "Yes" and the second statement "No", then the number of colors can be displayed two bits x 2 = 4 color statement. Pixels capable of displaying 3-bit means 2 x 2 x 2 = 8 colors, 4 bits means 2 x 2 x 2 x 2 = 24 = 16 colors and seterusnya.Jadi can be concluded that the pixel bit depth is the ability to store bits of information or, in this will affect the number of colors can be displayed.

Bit and File Format
Any image file format that we use on the Web has the ability to store different colors. As we know, a common image format used on the Web are GIF, JPEG, and PNG. GIF can display colors 8 Bit (256 colors), JPEG displays up to 24 Bit color or more than 16 million colors, and PNG can display up to 32 Bit color.

However, how many colors you use for the image, the display is determined by the fixed end computer ability screen displays colors.