Welcome to this exercise. Your task is to gain feedback for the tutorial you just completed. Attempt to answer each question below, referring back to the ScanTips.Com as needed. For each item below: click in the text box, type your answer, then click on the Check button for feedback.

1. What does the acronym JPG (PC) or JPEG (Mac) stand for.? Hint: both acronyms have the same translation.

2. Which of the following image file types provides the best compression (smallest final image size)? A. JPG/JPEG B. GIF C. PICT D. BMP

3. What do we sacrifice to achieve this great compression when using file format answer given above in question 2?

4. Why should then, we not use JPG/JPEG as the master solo copy (archive original) of our graphics generated for presentations?

5. What does the GIF acronym stand for?

6. Which of the following image file types would NOT be good to save in the GIF format? A. Solid color illustrations B. Diagrams C. Clipart D. Color photographs

7. GIF incorporates LZW compression which is ____________ in value during image saving and uncompression.

8. Although the LZW compression does not loose any data when creating a GIF file, all GIF files can only save your image with up to __________ colors. Most monitors today now have the video ram to display images in thousands, or millions of colors.

9. Which image file format would be best to use for the image below? A. GIF B. JPEG/JPG

10. Which image file format would be best to use for the image below? A. GIF B. JPEG/JPG

11. If you wanted to save an image in the native format for PC's, what format would you use?

12. If the compression scheme and file format native to PC's is similar in performance to GIF files (LZW compression), then is there any degradation or loss of image quality when saving a file in this format?

13. BMP can save images with a maximum of ________________ of colors.

14. Which of the following file types is the native format for all macintosh computers? A. GIF B. TIFF C. JPEG D. PICT

15. When saving in the PICT format, is the user limited to a certain file size, color depth, or resolution?

16. If using compression is necessary when saving a PICT file, which format would be better to use? A. PICT compression B. JPEG compression

17. Is the PICT image type a "lossy" compression scheme?

18. Which image file format would be best to use for an image file type if you traditionally work on a macintosh computer and this is your original copy of this image? A. PICT B. GIF C. JPEG/JPG D. BMP

19. Which file type would you use for the image below? A. GIF B. JPEG/JPG

20. Which file type would you use for the image below? A. GIF B. JPEG/JPG

21. Which file type would you use for the image below? A. GIF B. JPEG/JPG

Congratulations, you have now completed Lesson 2. At the completion of this lesson, you should now feel comfortable with defining and knowing the differences between the following image types: GIF, PICT, JPEG, and BMP. Additionally you should be able to choose the correct file type for your image depending on the type of image your working with, i.e. illustration, color photograph, black & white drawing, etc. Having this skill under you belt will allow you to maintain image clarity when importing images into your presentations, while still maximizing appropriate image compression schemes.

Proceed to Lesson 3: Review of Image Purpose