Paint Shop Pro

CS 102

Mar. 31, 1999

Paint Shop Pro

Experiment with Paint Shop Pro. Grab a GIF or JPEG file and edit it. Try painting your own image. Try each of the following:

  1. Start off by creating an Images folder in which to keep this lab's work.

  2. Open Internet Explorer, go to a page with an image, and right-click on the image to save it into your folder.

  3. Start Paint Shop Pro.

  4. Open the file you saved in Internet Explorer.

  5. Changing foreground and background colors: Along the right edge of the Paint Shop Pro Window you'll see a color spectrum with two rectangles below. The foreground rectangle shows the foreground color while the background rectangle shows the background color. Clicking the left mouse button within the spectrum changes the foreground color; use the right mouse button to change the background color.

    You can use the dropper tool to change foreground and background colors by clicking within an open image.

  6. Saving an image file. For each of the following, use Save As, double-check that the image is being saved into your Images folder, and choose a different name. Save your image in interlaced GIF89a format with no transparency information. Next, use the dropper tool to change the background color to a color within your image (don't use white). Now, save the image with a transparent background.

  7. Using the browser to view results. Return to Internet Explorer. From the File menu choose Open and browse to your Images folder. Open and observe each of the images. How does the image with a transparent background look?

  8. For most of the image manipulation functions, Paint Shop Pro must be working at a depth of 16-million colors. To increase the color depth, open the Colors menu, choose Increase Color Depth, and choose 16 Million Colors.

  9. Using one of your images, experiment with the flip, mirror, and rotate choices under the Image menu.

  10. Next, experiment with the deformation and filter browsers under the Images menu. Apply a few and see what happens. (You can return to your original by using the undo button.

  11. Cropping. Often you'll only want part of an image. Use the selection tool to mark the part of the image you want to cut out. Open the Edit menu and choose Copy. Open the Edit menu again, choose Paste, then choose As New Image. A cropped version of the original image should appear.

  12. Resampling. Copy the two 30--- JPEG images in S:\Kelliher\Images to your Images folder. One is 60x82, while the other is 600x820. Under the Image menu, you'll find Resample. Resample each image so that it is the size of the other image. (Hint: Within the Resample dialog box, click Custom size and enable Maintain aspect ratio. Then, you need only enter the new image width.)

    This demonstrates that it's not a good idea to resample to a larger size, but it's fine to resample to a smaller size. So, remember, when scanning it's better to use too large a DPI because you can resample down later.

  13. Brightness and contrast adjustment. Copy the image tigger.jpg from my Images folder to your Images folder. Open it in Paint Shop Pro. From the Colors menu, choose Adjust, then choose Brightness/Contrast. Preview the following settings of (brightness, contrast): (0, 0), (25, 0), (25, -25), (50, -25), (50, -50), (50, -90). By suitably adjusting the brightness and contrast of an image, you can make it usable as a background image on a web page.

  14. Painting and sign-making. This is a paint program. Click the new button to get yourself a fresh canvas. Use a black background and 256 colors. Experiment with the painting tools: paint brushes, air brush, flood fill, line, and shapes. (Hints: When you choose a painting tool, some parameter boxes will open beneath the tool bar. Experiment with different parameter values.) Add some text (Hints: When adding text, make sure Floating is enabled. After placing the text, there's a marquee around it to allow you to position it precisely. To turn the marquee off, open the Selections menu and choose Select None.) Use several colors. Are you the next Van Gogh? Try different things. Go ahead, knock yourself out. (You can look at sign.gif in my Images directory for a silly example. It's transparent, so compare it in Paint Shop Pro and Internet Explorer.)

    Make sure black is the background color, save the image in GIF89a format with background transparency, and look at your image in Internet Explorer. Is the background transparent?

Thomas P. Kelliher
Wed Mar 31 06:50:57 EST 1999
Tom Kelliher