|
Paint - Graphics Tool
Part:
1
2
This chapter describes:
- Paint - Graphics Tool
- Graphics Basic Concepts
- Reducing Graphics Size
- Converting GIF to JPEG
Paint - Graphics Tool
Paint is graphics tool included in Windows systems. It is simple, but useful for handling graphics files with
the following features:
- Support multiple graphics file formats, including MBP, JPEG, and GIF.
- Support graphics rotating and flipping.
- Support graphics stretching and skewing.
- Support basic graphics editing features.
Here is how to run Paint:
1. Go to Start > All Programs > Accessories > Paint. Paint program starts with a blank graphic.
2. Select menu File > Exit to exit Paint.
Graphics Basic Concepts
Computer graphics is organized as a matrix of rows and columns of dots. Each dot carries a color value.
The resolution of a graphics is measured by 3 parameters:
1. Horizontal resolution: The number dots within an inch in the horizontal direction.
2. Vertical resolution: The number dots within an inch in the vertical direction.
3. Color resolution: The number of colors supported on a dot.
For example, if a graphics of 5 inches by 3 inches is stored in computer with a resolution of
72 DPI (Dots Per Inch) in both directions and 256 colors per dot, it will be stored with a matrix
3 x 72 = 216 rows and 5 x 72 = 360 columns of dots. A color value in the range of 0 and 255 is used
on each dot.
A dot is also called pixel.
(Continued on next part...)
Part:
1
2
| 