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Graphics

Graphics. AGCJ 407 Web Authoring in Agricultural Communications. Overview. Discuss the importance of graphics in a Web site. Determine the basic components of graphical files. Understand the difference in saving psd versus Web files Create images for Mouseover effects using Photoshop.

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Graphics

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  1. Graphics AGCJ 407 Web Authoring in Agricultural Communications

  2. Overview • Discuss the importance of graphics in a Web site. • Determine the basic components of graphical files. • Understand the difference in saving psd versus Web files • Create images for Mouseover effects using Photoshop. • Comprehend the javascript coding for Mouseover effects.

  3. Graphic Files • Binary files • Graphic files have specific file extensions • Many graphic formats or standards on the Net • Most common format for pictures are: • .gif • .jpeg or .jpg

  4. Graphic Interchange Format • .gif • 256 colors • used for high resolution graphics • displayed on a variety of software • intended as an exchange and display mechanism for graphic images

  5. When to use GIF Small, icons and images Graphics, logos, logotype Flat color areas When you absolutely want to support every browser When not to use GIF Photographic continuous-tone images When .gif is bigger than a .jpeg Lots and lots of colors General Rules

  6. Joint Photographic Experts Group • .jpg or .jpeg • designed for compressing either full-color or gray-scale images of natural, real-world scenes. • works well on photographs, naturalistic artwork, and similar material; not so well on lettering, simple cartoons, or line art. • handles only still images

  7. Shrinking the Web • File size directly relates to download speed; the “general rule” is that every kilobyte of data takes about one second to download over average Web viewer’s modem. • Both JPEG and GIF files formats support impressive compression for slimming files. http://www.zdnet.com/macuser/mu_0896/dtm/shrinking.html

  8. Creating Images in Photoshop

  9. Saving Images to the Web

  10. Saving Images to the Web

  11. Saving Images to the Web

  12. Creating Images for Mouseover

  13. Creating Images for Mouseover

  14. Creating Images for Mouseover

  15. Saving Photoshop Images

  16. Saving Photoshop Images

  17. Coding Images for Mouseover atm.gif atm2.gif <a onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image1','','Images/atm2.gif',1)" target="_blank" href="http://www.tamu.edu"> <img src="Images/atm.gif" name="Image1" border="0" alt="Texas A&M University" width="90" height="86"></a>

  18. Coding Images for Mouseover

  19. Coding Images for Mouseover

  20. Coding Images for Mouseover

  21. Coding Images for Mouseover atm.gif atm2.gif <a onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('Image1','','Images/atm2.gif',1)" target="_blank" href="http://www.tamu.edu"> <img src="Images/atm.gif" name="Image1" border="0" alt="Texas A&M University" width="90" height="86"></a> <body onLoad="MM_preloadImages('atm2.gif','ace2.png','coals2.gif','act2.gif','agc2.gif','aged2.gif')" bgcolor="#808080">

  22. The Final Result

  23. That’s All Folks!

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