Digital Camera II Advanced Photo Editing Ann Howden

Digital Camera II Advanced Photo Editing Ann Howden UEN Professional Development

Steps to Digital Photography: Creating a Digital Workflow ¢ Input: Taking Pictures l ¢ Image Processing l l ¢ Digital camera, Scanner, Digital Video Organization • Transfer to computer, Back up photos, Sort by category Edit or manipulate the image with editing software Output (and Organization) l Print, display, and share images

Digital Image Basics ¢ Digital Images are made up of Pixels l l Pixels are small units of light that make up the image. Each range of light is given a number to represent a color. • White = 0 • Black = 255 • All other colors fall in between this range l When you edit a photo in Photoshop, most of the work you will do is “pixellevel editing”.

Image segment enlarged to 3200%

Digital Image Basics ¢ Quality and Size of Image Depends on the amount of pixels used to create the image l Referred to as Resolution • The amount of pixels per inch determines the resolution • Example: 300 ppi means there are 300 pixels per square inch of picture

A tip to remember… ¢ No matter the size of picture file, a digital image will usually look good on a computer screen. l ¢ A 1 megapixel camera will display pictures on a computer screen as big as 8 x 10 that look great. Megapixels really matter when you want to print your images. l A 2 megapixel camera will make beautiful 4 x 6 prints, but really should not be printed any bigger.

Photo And Pixel Size Final Size Web, E-mail or Presentation 72 ppi Home Printing 4 x 6 288 x 432 = 124, 416 pixels 600 x 900= 540, 000 pixels 1, 200 x 1, 800 =2, 160, 000 pixels (2 mp) 5 x 7 360 x 504 = 181, 440 pixels 750 x 1, 050 = 787, 500 pixels 1, 500 x 2, 100 =3, 150, 000 pixels (3 mp) 8 x 10 576 x 720 = 414, 720 pixels 1, 200 x 1, 500 =1, 800, 000 pixels (2 mp) 2, 400 x 3, 000 =7, 200, 000 pixels (7 mp) 150 ppi Professional Printing 300 ppi

Resolution Guidelines Photo output Photo dpi Web/on-screen use 72 dpi Screen printing 70 -130 dpi Inkjet printer on copy paper 150 dpi Photo quality inkjet paper 240 -300 dpi Laser printer(300 -1200 dpi) 100 -200 dpi Offset printing-newsprint 150 -200 dpi Offset printing-coated paper 240 -300 dpi Stitzer

Megapixel Printing Chart (If printing at home) Camera Resolution 1. 3 megapixels Max High Quality Print Size 4 x 6 print 2 megapixels 5 x 7 print 3. 3 megapixels 8 x 10 print 4 megapixels 11 x 14 print 5 megapixles 12 x 16 print 6. 3 megapixels 14 x 20 print 8 megapixels 16 x 22 print

Editing Pictures l Editing/Compressing a digital image alters the amount of pixels in an image. • Cropping an image reduces the amount of pixels. Depending on the amount of pixels cropped and the print size, you may or may not see a difference in the image. • Enlarging an image requires the computer to add pixels where none existed. This will cause a pixelation or distortion in your image.

Enlarging a small file When you try to enlarge a small file, there isn’t enough information so the computer tries to comepnsate. This leads to your image becoming pixelated

Cropping a large file 1376 wide x 1341 high 3008 pixels wide x 2000 pixels high Cropping a photo removes information. Once you crop and save, you cannot go back to the original file size.

Tips to Remember with Photoshop Elements 3 Tip #1: Tip #2: Tip #3: Tip #4: Plan your project before you start editing. Remember that Photoshop works with your ORIGINAL photo. Always do a “save as” or a “duplicate layer” before starting a project. Practice, does indeed, make better.

Photoshop Project Examples There are many different types of projects you can complete using Photoshop Elements. ¢ Photo Editing ¢ Collages ¢ Advertisements, brochures, flyers ¢ Scrapbook pages ¢ Creative notes home to parents

Curriculum Links with Photoshop Elements ¢ ¢ Applied Technology (career and Technical) Curriculum Improve communication with students, parents, faculty and staff l l l ¢ Flyers, brochures, project announcements Websites Student spotlights Student generated projects as well as teacher generated

Digital Camera II Advanced Photo Editing Ann Howden UEN Professional Development