Another problem comes when doing image processing: whenever two images with different color maps are added to each other, the resulting image has to have a new color map created, meaning another quantization operation has to occur, making the resulting image an imperfect version of the expected result.
#8 BIT S FULL#
In practice, in order to avoid this problem, most images don't use the full range of 256 colors. Since an 8-bit color display can't display two images with different color maps at the same time, it is usually impossible to display two different 8-bit images on the same such display at the same time. Issues ĭue to the nature of the 8-bit system, most images have different color maps.
For example, both Mars Exploration Rovers used an 8-bit grayscale format for navigation imaging. Many different image types such as GIF and TIFF use an 8-bit color system to store data.Įven though it is now outdated for most consumer applications, 8-bit color encoding can still be useful in imaging systems with limited data bandwidth or memory capacity. Developed in 1987 by IBM, the VGA interface supported a maximum resolution of 640x480 pixels.
Most notably, the VGA standard for graphical interface uses an 8-bit color.