INTRODUCTION TO PHOTOSHOP 4.0 (Continued)

---

HOW TO SCAN, ADJUST AND SAVE A COLOR PHOTOGRAPHIC IMAGE USING PHOTOSHOP 4.0

1. Align the photo / artwork properly on the scanner. 2. Select FILE > IMPORT > TWAIN32 3. The Scanning Applet for your scanner will open. 4. Using the mouse, select the area to scan. You should select an area slightly larger than needed. If unsure, use the entire scanner area. 5. Select RGB, 24-bit, 30-bit, or 36-bit color, Reflective, and the scale desired. If unsure, use 100% 6. Select a scanning resolution. If the image is meant for a Web Page, use 72 ppi, or 96ppi. Otherwise try a resolution between 100 and 250ppi. (Refer to the Scanning Resolution Table under "Scanning Basics".) Remember, the more pixels per inch, and the more colors, the larger the resulting file. See the table below:

Scanned Pixels Per Inch (ppi)	Pixels contained in a 1-inch square image	PSD File Size of a 1 Square Inch Image scanned at 30-bit True Color	PSD File Size of a 4 X 6 Inch Image scanned at 30-bit True Color(ppi)
72ppi	5,184	20 KB	285 KB
144ppi	20,736	71 KB	1.2 MB
300ppi	90,000	288 KB	4.83 KB
600ppi	360,000	1.15 MB	19.18 MB

7. Perform a Preview Scan. Perform any final alignment and re-select the area to be scanned, if necessary. 8. Once the scan is complete, close the scanning applet 9. Save the image as a Photoshop PSD File. Remember, Photoshop 4.0 can only perform one level of undo on an image. Select FILE > SAVE AS, then select a directory / Filename. 10. Crop the image, then Resize the image as necessary. a) If destined for Print, select IMAGE > IMAGE SIZE. Then enter a desired width or height in "Print Size". DO NOT select "Constrain Proportions". Crop the image instead. b) If destined for Screen Output (i.e., Web Page or PowerPoint presentation), enter a desired pixel width or height. 11. Save the image again. Select FILE > SAVE 12. Adjust Tonal Range. Either select IMAGE > ADJUST > AUTO LEVELS, or IMAGE > ADJUST > LEVELS, and manually set the White Point, Black Point and Midrange Point (Gamma Level). 13. Save the image again. Select FILE > SAVE 14. If no further adjustments are necessary, Sharpen the image using Unsharp Mask. Select FILTER > SHARPEN > UNSHARP MASK At the dialog box, select an amount from 40% to 50% to start. Experiment using the Preview option to get the desired level. 15. Save the image in its final format. Use either PSD or TIFF; or for Web images, save as a JPG file, Medium to High Quality, and do not save the Thumbnail, or Paths with the image. A good rule of thumb is to keep the total size of all images on a Web page to 50KB or less.