| Graphics
can add a great look to all sorts of documents and presentations.
Whether you are creating a classroom web page, a newsletter, or a Power
Point presentation, well-created and manipulated graphics can make all the
difference. |
Graphics
Types
| Tools | Tips
& Tricks
Types :
a fairly detailed explanation of some of the
more common types of graphics and their characteristics
There are several major types of graphics -
you will recognize what type of graphics a certain image is by looking at
the file extension (*.gif, *.jpg) or by looking at the properties of an
image.
Each type of file has certain
characteristics and benefits that make it unique and the best choice in
certain situations. We will briefly take a look at each:
"GIF"
- Graphical Interchange Format
- Created for the Web by CompuServe
- cross-platform
- compressed
- interlacing
- transparency
- animation
"JPEG"
- Joint Photographic Exports Group
- best used for photos or subtle color
changes
- cross-platform
- compressed (various levels, but "lossy")
- more color options but no transparency
- interlacing with "progressive JPG's
- good for photos, watercolor, charcoal,
pencil
"PNG"
- Portable Network Graphics
- Fairly new format - not yet widely used
- cross platform
- compressed - "lossless"
- color flexibility
- gamma (brightness) information
- interlacing
"BMP"
- bitmap
- bitmapped images are generally ones
created or edited using a "paint" program
- you can edit individual
"pixels"
- usually large in file size
"TIFF"
- Tagged Image File Format
- created for scanning
- again, usually large in file size
- cross-platform
"Native File Format"
- the file format native to the
program/software
- most are only useable in the original
program
- typically have large file size
- examples are .aps, .mic
- best for original work, but then need to
be resaved as another type
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Tools :
a look at the tools, both hardware and
software, available to you to work with graphics of various types and a
chance to practice with each!
Digital Cameras
- various types - various costs
- memory cards/sticks
- Sony Mavica (in all schools)
- images stored directly on 3.5. floppy
disk
Scanners
- nice for getting images you only have in
print form
- can scan text and/or images
- can scan large items and then manipulate
them with software
- can scan photographs taken without a
digital camera
"Paint"
- a basic application
- comes with nearly all pc's
- a little rough but can be used
effectively to create and/or manipulate images
- can be used with word art
"Photo Editor"
- Microsoft product
- fairly basic, but several options for
manipulating images
- great for cleaning up photos
Other possibilities
- Microsoft Image Composer
- Adobe PhotoShop
- Quark Express
- Microsoft Picture It
Download from the Internet
- You may want to get a picture or clipart
from the web
- There are some things to keep in mind
(see copyright issues below)
- How to do it
- In IE: right click the image, select
copy, and then paste it into your application or document
- In Netscape or IE: right click the
document, select save image as, name the image and save it to the
appropriate location - then go insert a picture from file and find the
image you saved
- Go to the WEB
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Tips & Tricks
:
some tips and tricks to make your graphics
work easier and more efficient - just some things to think about
Some general tips for
working with graphics:
- file size matters -
the larger the file the better the quality - define your purpose as it
will define your file size needs
- resolution issues - the
larger the resolution, the better the print quality - 300 ppi is best
print quality but makes for a larger file - 72 ppi is all needed for
the web
- resizing, cleaning
up, etc - open Microsoft Photo Editor and use the
"image" option to balance the picture , crop it or resize it
- you can right click on the
picture to change the resolution
- working with images
in the document - you can change the size, crop pictures, change
the brightness, etc. in Word, Power Point, web editors, etc., but it
is better to do it first and then put it in the document exactly as
you want it (in most cases)
- copyright issues
- if you do not create your own graphics, be sure to use only graphics
you have permission to use or give credit where credit it due -
someone likely put a lot of time into creating it!
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