And the color computer
Raster and vector graphics
Raster graphics
Type of mosaic, the picture consists of multi-colored squares.The quality of the image depends on the resolution of the DPI-points per inch, the more points per inch, the less the point and quality is higher, but not everything is so simple, there are some features.
Vector Graphics.Plus vector graphics - the quality does not change from increasing the size of the picture.
The principle of format is the points connected by a curve (or a straight line) with a different angle and bend depth.
Example - the fonts we use are always clear, no matter how much they increase.
If we need a logo or a clear picture with an even fill, then vector graphics are better. Images can be mixed, that is vector formats contain bitmap fragments and vice versa.
Color modes
Bitmap
Black and white, without shades of gray, ex. A new format for WBMP mobile phones.Grayscale (Grayscale).
Black and white photo ... It uses up to 256 shades of gray.
Indexed Color (Indexed Color).
In indexed palettes, there are no more than 256 colors. The fewer colors in the palette, the smaller the image file size. This mode is used to store files in GIF-format.
CMYK
Each point is coded with four components that roughly correspond to the turquoise (Cyan), magenta (Magenta), yellow (Yellow), black (blacK).The standard application of the CMYK mode is the preparation of images intended for viewing in reflected light, such as photographic prints and color reproductions, reproduced by four-layer printing.
This encoding is used in printing for printing on white paper.
RGB
It is based on three colors Red (Red), Green (Green) and Blue (Blue). It is in this mode that images intended for viewing on the monitor screen or for demonstrating to the lumen slides, frames of films, video fragments.So, it is important to understand the difference between CMYK and RGB, reflected color and light.
For example, to get a yellow on white paper, you need to mix the blue and yellow color or apply the green glass to red, but not vice versa.
So, if we have prepared a drawing in RGB and print it, the color gamut will be distorted. In order to work in Photoshop all functions, you must set the mode RGB.