2. Sources of Photos and Graphics
1. Personal and Professional Photos :
these are photos taken by amateur or professional photographers
using a digital camera. These images are stored in the computer.
They are sources of images for any project that you may embark.
They are original and definitely something one would like to work on
3. 2. Scanned Images
these are photos that you transfer from printed
photos and graphics using scanning devices which
you can transfer to your computer for further
improvement and modification.
4. 3. Stock Photo Library
These are several photographs and created images that
are available for sale. They come in CD or DVD format and
many of these are royalty-free, which means that they can
be used without additional fees.
5. 4. Online Stock Photos
These are found in the World Wide Web or the
internet.
6. 2. Open Formats
these are means and ways for storing digital information
that are free, can be used by the public and are not
encumbered by copyrights or patents. These formats are also
called free file formats and the specifications for these formats
are usually sustained and maintained by a group of individuals
or organizations.
7. Online Digital File Formats for Images
and Text
1. Proprietary Formats
These are owned and controlled by individuals or
corporations and the file format specifications are not
available to the public.
8. 3. File Format
It uses suffixes that are added to the end of a
filename, called filename extensions.
9. Digital File Formats
1. Uncompressed or raw format – used for storing original
format, it is a flexible form but needs bigger memory to store
2. Lossless file format – compressed to replicate original quality
but a reduced file size.
10. 4. Lossy file format
A file format that was compressed as an approximation of
the original file but is good enough.
11. Image File Formats
Image file formats are means of storing and organizing digital images,
photos and illustrations.
12. A. Raster Image Files
Raster image or bitmap image is a means of representing
digital images in bits information for storage, which translates into
pixels when viewed on the screen. Majority of the raster files are
lossy.
Pixel is the smallest information of an image. The word pixel
comes from the words picture (pix) and element (el)
Raster Image Format is the most common formats we can observe
throughout the Internet and with many digital image files.
13. Types of Raster Image Formats
.bmp – Bitmap Image File is an image file format developed and
used on Microsoft Windows environment and is stored in a graphics
file format called device-independent bitmap (DIB). (.bmp or .dib)
14. Types of Raster Image Formats
.gif – Graphical Interchange Format File is a popular image format
because of its small size and support for animation. It supports only a
small 8-bits per pixel color scheme.
15. Types of Raster Image Formats
.jpg – Joint Photographic Experts Group (JPEG) is a common file
format since it supports 24-bits.
16. Types of Raster Image Formats
.png – Portable Network Graphic File is an open source bitmap image
format but can handle more colors and supports 24-bits per pixel
color scheme and supports true color (16 million colors). PNG is
lossless.
17. Types of Raster Image Formats
.psd – Photoshop Document (PSD) is a native file format for Adobe
Photoshop.
18. B. Vector Image or Vector Graphics
Files
Vector images are lossless files created using mathematical
geometric equations to represent images in digital computer graphics.
Vector graphics can retain its quality at any desired image size, unlike
raster images that appear pixelated.
Vector Format or Graphic is the preferred format for those who desire
quality prints and display of images.
19. Types of Vector Image Formats
.ai – Adobe Illustrator File is the file extension for graphics created
using Adobe Illustrator.
20. Types of Vector Image Formats
.drw – Drawing File is a generic drawing created and stored in a
vector format that uses liens or paths to represent images. (Apple
Appleworks, Microsoft Picture It, CorelDRAW and Corel Paint Shop
Pro)
21. Types of Vector Image Formats
.dxf – Drawing Exchange Format File is a drawing format developed
and introduced by Autodesk in the manner of AutoCAD and is used
for computer-aided design (CAD)
22. Types of Vector Image Formats
.ps – PostScript File is a page description language (PDL) developed
by Adobe, basically a language for printing documents on later
printers and image setters (high resolution printers). There is no
quality reduction or pixilation on this format.
23. Types of Vector Image Formats
.svg – Scalable Vector Graphics (SVG) is the most common vector
graphic format, it was developed by The World Wide Web Consortium
(W3C)
24. Types of Vector Image Formats
Other file formats include TIFF (Tagged Image File Format), RAW (
Raw Image Format), GIF (Graphics Interchange Format) and the PSD
(Photoshop Document)
