Comparing File Sizes of Image File Formats
This section provides a quick comparison of file sizes of 3 image file formats, BMP, XCF and JPEG, of the same reg gradient spiral image.
Now we have a single image saved in 3 file formats. Let's compare them by their file sizes:
Open a command line window and go to the folder where those image files are saved:
File sizes tell us that:
- BMP format with 24-bit colors: 62,262 bytes - The image data is about 144 x 144 x 24 bits = 497,664 bits
= 62,208 bytes. So there is no compression in BMP format.
- XCF format: 41,767 bytes - Comparing to the image data size, 62,208 bytes, XCF format has a 33% compression rate.
- JPEG format with 100% quality level: 10,914 bytes - Comparing to the image data size, 62,208 bytes, JPEG format has a 82% compression rate.
Last update: 2008.
Table of Contents
About This Book
Introduction to Microsoft Windows
Introduction to Windows Explorer
Introduction to Internet Explorer
"Paint" Program and Computer Graphics
GIMP - GNU Image Manipulation Program
►JPEG Image File Format Quality and Size
Saving Images in JPG/JPEG Format
Saving Images in BMP (Windows Bitmap) Format
►Comparing File Sizes of Image File Formats
Comparing JPEG High Quality Levels
Comparing JPEG Low Quality Levels
GIF Image File Format and Transparent Background
"WinZip" - ZIP File Compression Tool
"WinRAR" - RAR and ZIP File Compression Tool
FTP Server, Client and Commands
"FileZilla" - Free FTP Client and Server
Web Server Log Files and Analysis Tool - "Analog"
Spyware Adware Detection and Removal
IE Addon Program Listing and Removal
Vundo (VirtuMonde/VirtuMundo) - vtsts.dll Removal
Trojan and Malware "Puper" Description and Removal
VSToolbar (VSAdd-in.dll) - Description and Removal
Spybot - Spyware Blocker, Detection and Removal
Setting Up and Using Crossover Cable Network
Home Network Gateway - DSL Modem/Wireless Router
Windows Task Manager - The System Performance Tool
"tasklist" Command Line Tool to List Process Information
"msconfig" - System Configuration Tool
Configuring and Managing System Services
Windows Registry Key and Value Management Tools
Startup Programs Removal for Better System Performance
Winsock - Windows Sockets API
Java on Windows
Glossary of Terms
PDF Printing Version