hw2 (2-2-10)

1. What are web acceptable images?

GIF, PNG, JPG

2. What do the acronyms mean?

GIF - Graphics Interchange Format

PNG - Portable Network Graphics

JP(E)G - Joint Photographic Experts Group

BMP - Bitmap

3. How do they differ? In size? In DPI?

GIF - smallest size (8 bits per pixel), 256 colors.

PNG - 24-bit RGB.

JPG - 16-bit format.
BMP - large file size because of lack of compression.

4. Is one better than the other for a certain function?
GIF - Not ideal for photos, better for logos and solid areas of color. Can be transparent and support animation.

PNG - Becoming the most common format for transferring photos on the web. Lossless data compression.

JPG - Size and quality of images can be controlled. Lossy compression.

BMP - Usage in Windows operating system. Simple format.