Unit 5 PDA 304  :  prepared by Ben Matthews  :  October 23 and 25, 2000 | February 27, March 1, 2001  :  NCHS room 161

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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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graphicsbasics  |  digitalcameras  scanners  |  wordart practice  |  evaluation  |  home