Nice calm scene
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Nice Calm Scene. PowerPoint PPT Presentation


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Nice Calm Scene. (You’ll need it.). Skills. Getting files off of the camera or scanner Archiving Choosing and adjusting image file type Editing Scaling size/resolution for web/e-mail Scaling size/resolution for print. Terms and Concepts. Pixels Image Resolution

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Nice Calm Scene.

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Nice Calm Scene.

(You’ll need it.)


Skills

  • Getting files off of the camera or scanner

  • Archiving

  • Choosing and adjusting image file type

  • Editing

  • Scaling size/resolution for web/e-mail

  • Scaling size/resolution for print


Terms and Concepts

  • Pixels

  • Image Resolution

  • “Output” or “Physical” Image Size

  • Color Depth

  • File Formats


To the drawing board…


From the drawing board…

File Formats


“Web Friendly” File Formats

  • JPEG images (*.jpg, *.jpeg, *.jpe, *.jfif) - many compression levels (lossy)

  • CompuServe images (*.gif)- compression format: LZW (lossless)

    - special: interlaced, non-interlaced

  • Portable network graphic images (*.png)- compression format: LZ77


JPEG/JPG “Photographical”

  • JPEG is designed for compressing either full-color or grey-scale digital images of "natural", real-world scenes. It does not work so well on non-realistic images, such as cartoons or line drawings.

  • Remember, the 'P' in JPEG stands for 'Photographic'. It was designed to be used to compress photographic image data.

    (Joint Photographic Experts Group)


GIF “Solid colors and lines”

  • GIF images can contain a maximum of 256 colors (8 bits) or less… (Graphics Interchange Format)

    …if you create a GIF image of a red arrow, you can customize the file to have only two colors, red and white.


PNG

  • PNG: Essentially ‘Extended’ GIF Images.

    Allows for up to 24-bit color including control of opacity. Saving, restoring and re-saving a PNG image will not degrade its quality. PNG does not support animation like GIF does. “Patent-Free”


“Edit Friendly”

  • Uncompressed or lossless compression

    • Saved, edited, saved, edited without penalty

    • Good for archives… (Why?)


“Edit Friendly” (web poor) file formats(Either uncompressed or lossless compression)

  • TIFF images (*.tif, *.tiff)

    - uncompressed (Compressed: packed bits, LZW*, CCITT T.4, Deflate, new style JPEG…)

  • Standard Windows bitmap images (*.bmp)- uncompressed

  • Photoshop images (*.psd, *.pdd)- uncompressed

  • RAW images (*.raw)

    - shockingly uncompressed


Step A.

  • Archive your important photos in their BIRTHDAY SUITS. (native, un-edited, un-resaved, happy, naked state)

  • (Meaning, make a copy and DON’T work on the copy…)


Step B

  • If you will be doing lots of

    saving, editing, saving, editing…

    FIRST, convert to a

    lossless or un-compressed form.


Step C

  • Edit and Adjust

    • For appropriate pixel size

    • Cropping, color, orientation…


Terms

  • Pixels

  • Image Resolution

  • Image Size

  • Color Depth

  • File Formats


Step D.

  • Save in the desired production format…

    Done!


On to software…


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