| Cropping
Image |
Tool box:
marquee tool  then
crop tool 
Drag to box out desired area, use handle bars
and rotate options, hit return key when marching ants
are positioned.
|
| Adjusting Overall Picture |
|
| Sharpening Image |
Filter Menu > Sharpen > Sharpen
or for more control
Filter Menu > Sharpen > Unsharp Mask |
| Brightness and Contrast |
Image Menu > Adjust brightness/contrast
Image Menu > Levels
Image Menu > Curves
Select white eyedropper then what should be the white paper
  |
| Adjust Color |
Image Menu > Adjust > Variations
Image Menu > Adjust > Color Balance
Image Menu > Adjust > Hue Saturation |
| Rotating Image |
Image Menu/ Rotate Canvas |
| Adjustingspecific areas of image |
|
| Lighten area |
Tool box-
Dodge tool, select appropriate brush
 |
| Darken area |
Tool box-
Burn tool, select appropriate brush
 |
| Increase color saturation |
Tool box-
Sponge tool, select appropriate brush
 |
| Copy and Paste area of Image to new file |
Select area of image
Tool box: Marquee tool; click/drag to select area
Copy area to clip board
Edit Menu > Copy (or apple + c)
Create new file in which to paste image
File Menu > New ok through default settings
Paste Image
Edit Menu > Paste (or apple/v)
|
Isolating figure (or area) of an image for Pasting or Transparency
|
Enter Quickmask mode Tool box (bottom left)
Draw mask: black creates mask, white (or eraser) removes mask. One
strategy is to draw around inside edge of object with paint
brush then fill inside with paint bucket
Return to standard mode
Make figure current selection rather than background Select
Menu > Inverse
Copy figure to the clipboard
Edit Menu > Copy
Select desired destination image in which to paste figure
Edit Menu > Paste
or for figure on transparent background
Create new file with unique color as background and export as gif89
(see below).
|
Resizing Image for use on the
Web
Resize image to fit in screen for main page or for use as a thumbnail
|
Image Menu > Image size
Enter values in Pixel Dimension area
Make sure constrain proportions is checked.
Average Inline images-
limit size of width and height to below 580x350
640x480 screen resolution: 72dpi,
600 x 300 after menus
832x624 screen resolution: 72dpi,
765 x 420 after menus
1024x768 screen resolution: 72dpi,
980 x 580 after menus
Thumbnails- ~150x150 works well
Hires Images for detail:
just keep an eye on the file size; below 50k is recommended for web
delivery
|
Reducing the
Color Depth
(number of Colors) |
Options:
1. Image Menu > Mode > Indexed Color
Mode; Adaptive, no dithering
or enter desired number of colors
2. File Menu > Save for web...
Select GIF, no dithering, use 4-up view to experiment with various settings
and resulting image quality
3. Image Ready |
|
|
| Saving Files for use on the Web |
Save file in Photoshop format for future editing.
Save scanned images as JPEG format;
don't resave JPEG files- deterioration from compression is cumulative.
Save graphics in Gif format
Image Menu > Mode > Indexed Color
Adaptive Palette/ 8 bit/ 256 Colors
File Menu > Save > Format: Compuserve Gif
or to turn areas to clear
File Menu> Export > Gif89 select color for clear
|
