✅What is Computer Graphics?

Computer Graphics is a branch of computer science that deals with creating, storing, manipulating, and displaying images, pictures, animations, and visual objects using computers.
It is used to convert data into visual form so that people can easily understand information.
📌 Examples:
Video games, movies (VFX), mobile apps, medical imaging, CAD designs, charts, and animations.


✅ Types of Computer Graphics (with Discussion)

Computer Graphics is mainly of two types:

1. Raster Graphics (Bitmap Graphics)

Raster graphics are made up of tiny dots called pixels arranged in rows and columns.

🔹 Characteristics:

Image is stored as a grid of pixels

Quality depends on resolution

Enlarging image reduces quality (becomes blurry)

🔹 Examples:

Photos

Scanned images

JPG, PNG, BMP files

🔹 Uses:

Digital photography

Web images

Image editing (Photoshop)

2. Vector Graphics

Vector graphics are created using mathematical formulas, lines, curves, and shapes instead of pixels.

🔹 Characteristics:

Can be resized without losing quality

Smaller file size for simple images

Based on objects (line, circle, rectangle)

🔹 Examples:

Logos

Diagrams

SVG, AI, CDR files

🔹 Uses:

Logo design

Engineering drawings

Animations

✅ Other Classification (Sometimes Asked in Exams)

3. 2D Graphics

Flat images with only length and width

Example: charts, drawings, cartoons


4. 3D Graphics

Images with length, width, and depth

Looks realistic

Example: movies, games, simulations

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