Practice with PaintShop Pro

People Picture

  1. Copy this picture into PaintShop Pro :  http://www.psych.lancs.ac.uk/people/images/staff2004.jpeg
  2. What kind of a picture is it (what format)?
  3. How many colors does it have? ____________      The color depth is ____________ bits.
  4. How much memory does it require to store this picture?
  5. What is the resolution of the picture (width pixels x height pixels)?
  6. Is the resolution good enough that you can see the colors of the peoples' eyes (use the ZOOM tool)?
  7. Is it possible to increase the color depth so that you can see the peoples' eyes?
  8. Save the picture in Compuserve GIF format.  You will see a warning question.
    What does "reduce color depth" mean?
  9. After you have saved the GIF picture, OPEN it again and compare it to the original picture.
    Is the quality worse, better, or about the same?
  10. How much memory does it take to store the GIF version?
    How much memory is "saved" by changing to .GIF format?

Sports

img1.gifimg2.gif
  1. Which of these pictures is in grey scale?
  2. Copy the other picture into PaintShop Pro and use a transformation (filter) to make it look like the grey-scale image.
    Before performing transformations, you will need to change the format of the picture.  Why?
  3. Use other transformations to exaggerate the light and dark spots to make it look
    even more like the other image.
  4. When you have done the best job you can, show the result to the teacher.

Cartoons

Cartoons are very simple pictures.  They don't use very many different colors.  For example:

        img3.gif

  1. Guess how many different colors are actually used in this image.
  2. Copy the cartoon into PaintShop Pro and check your answer to #1.
  3. Use the zoom tool to look at the pictures in the blonde hair.
    Are they all the same color, or are there slight differences?
  4. Use the color selection tool to fill in the chart below, showing how 2 colors
    can be mixed to make a new color:

    5.  

    RED

    GREEN

    BLUE

    RED

    red + red
    = red

     red + blue
    = purple

    GREEN


     

     green + green
    = green

     

    BLUE

     

     

    blue + blue
    = blue
  1. Find out what colors must be mixed to make brown.

Image Filters

Look at this page to see some examples of transformations :
     http://ibcomp.fis.edu/graphics/2d/filters/filters.htm

For each pair of pictures, find the transformation that was used.
(Don't do the backgrounds assignment at the bottom).