Seminar Techniques and Technology (HS 601)

Handout - Digital Imaging

Photoshop: Example Session

1. Acquire digital image
   • (slide scanner, digital camera, PhotoCD)
2. Duplicate, then open into Photoshop (work on duplicate)
3. Crop, straighten, rotate
   • (Select area with cropping tool; then IMAGE - CROP;
   • then IMAGE - ROTATE CANVAS)
4. Save
   • (SAVE AS - PHOTOSHOP)
   • makes high quality image that can be edited further
5. Get image size and resolution
   • (IMAGE - IMAGE SIZE)
   • Large print: 7"x10" with 300 (or 600) dpi
   • Small print: 5"x7" with 150 dpi
   • Large web: 640 (or 320) x ? pixels with 72 dpi
   • Small web: 224 (or 192) x ? pixels with 72 dpi
6. Adjust image range
   • (IMAGE - ADJUST - LEVELS)
7. Adjust image color
   • (IMAGE - ADJUST - COLOR BALANCE)
8. Adjust image brightness
   • (IMAGE - ADJUST - BRIGHTNESS/CONTRAST)
9. Adjust image hue
   • (IMAGE - ADJUST - HUE/SATURATION)
10. Add text
    • (Use text tool to write in a second layer)
11. Sharpen image
    • (FILTER - SHARPEN - UNSHARP MASK)
12. Flatten layers before saving as TIFF
    • (LAYER - FLATTEN IMAGE)
13. Save as TIFF for archiving
    • (SAVE AS - TIFF - MACINTOSH - LZW COMPRESSION)
14. Save a second file as JPEG for web use
    • (SAVE AS - JPEG - MEDIUM - PROGRESSIVE)
15. Store images
    • (save on hard disk; burn onto a CD-R or DVD-R disk)