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Here are my notes on creating photographs using Adobe Photoshop and other software.

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    Set this at top of window. Software

      The main powerhouses in this is Adobe (who acquired Macromedia).

    1. Adobe Photoshop for print images
    2. Adobe ImageReady for web images
    3. Adobe Macromedia Flash
    4. 3D Studio Max
     

     
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    Set this at top of window. Filters

      The most difficulty I've had with filters is that I need to zoom in so I lose the eyes.


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      Set this at top of window. Black and White

      I had a hard time fixing the color on the original of this photo. So I tried the "Photocopy" filter and ended up pleasantly surprised. Black and white is more appropriate for this photo because viewers can now focus on the eyes of the subjects rather than sorting through the combat of various colors in the original picture.

      Other examples: digital manipulations, combining images


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    Set this at top of window. Digital Camera Pixel Resolution

      A photograph, whether viewed on the screen or printed, is composed of tiny dots (also called pixels). The more of these dots that can fit in a one inch space, the tinier the dots and the sharper the image. Assume you take an image at 100 dpi that is one square inch in size. It is composed of 100 X 100 pixels. It may look good at one square inch. Now blow it up four times to four square inches. Since it still contains the same 100 X 100 dots, it is now only 25 dots per inch. It will now look grainy. Digital camera resolution is a very important factor to take into account when deciding what camera to buy.

      The most important features of digital cameras is its resolution — measured in Megapixels (millions of pixels/dots).

      For display on computer monitors (or on the web), photos need not be megapixels. But to create prints require more pixels per square inch to avoid obviouis "pixelation".

      Instead of photographic film, digital cameras expose images most commonly on a CCD (Charged Capacitance Device) or the less expensive CMOS (Complementary Metal-Oxide Semiconductor), which does not perform as well as the CCD chips in low light.

      The number of megapixels advertised is much larger than the actual number of picture pixels used Many pixels are wasted because the actual rectangular picture area fits within a round total sensor area.

      Not all pixels are square. Nikon D1x cameras have rectangular pixels. Fujifilm has developed a sensor using octagonal pixels.

      To truly compare resolution, resolving power should be assessed in line pairs per image height (and width) using the ISO 12233 test chart and methodology under the same conditions. The figures should be derived for each variable (resolution direction: horizontal, vertical, and diagonal; location on the image: center and corner; focal length, aperture, scene brightness, ISO setting, and file format.)

      To better measure digital camera resolution, I3A (formerly PIMA) has proposed International standard ISO 12233 "Photography-Electronic still picture cameras - Resolution measurements". based on lines per image dimension and tool Sine Pattern standards similar to "lines per image height" specifications of television and video resolution.

     

     
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    Set this at top of window. Standards

      This table reconciles the pixel resolution to various standard size prints and frames (at 72 dpi):
      Pixels Pixel
      Resolution
      Aspect
      Ratio
      Format
      Name
      Std.
      Prints
      Note
      76,800 320 x 240 1.333 Pocket PC screens - -
      - 352 x 288 1.222 Pocket PC pictures 4.889
      x4
      Crop & Stitch 2 for 4x6 prints
      - 540 x 360 1.5 screen captured CGA 2x3 -
      307,200 640 x 480 1.333 screen captured VGA 6.667 x 8.889 "Hires" Camera phones
      - - 1.619 PAL - PAL in France, etc.
      - 768 x 576 1.333 - 3.4x2.1 Canon CP-10 Card Printer
      480,000 800 x 600 1.333 (4:3) screen captured SVGA 8.333 x 11.111 -
      480,000 800 x 600 1.333 (4:3) screen captured SVGA 8.333 x 11.111 -
      - - 1.4 (5:7) - 5x7
      - - 1.335 Index cards 3x5 -
      409,920 854 x 480 1.779 (16:9) screen captured WVGA - "HD compatible" Sharp DT-100 DLP SXGA Projector
      786,432 1024 x 768   1.333 (4:3) screen captured XGA 10.667 x 14.222 (72 dpi) "Hires" screensavers & wallpapers
      1,310,720 1280 x 1024 1.25 (4:5) screen captured SXGA - InFocus LP70+ DLP XGA 1100 Projector
      1,470,000 1400 x 1050 1.33 (4:3) screen captured SXGA+ - Sony VPL-ES3 Projector
      1,920,000 1600 x 1200 1.333 (4:3) screen captured 16.667 x 22.222 (72 dpi) -
      - 1680 x 580 - - - HP 22Quot; monitor
      1 mp 1080 x 720 1.5 (2:3) 4x6 (180 dpi) Low res. on Kodak camera
      3 mp 2160 x 1440 1.5 (2:3) 4x6 (360 dpi) High res. on Kodak camera
      2.2 mp 1800 x 1200 1.50 - 6x9
      7,200,000 3000 x 2400 1.25 (4:5) "Portrait" frame 8x10 (300 dpi)
      - 1920 x 1440 1.333 (4:3) screen captured -
      - 2048 x 1536 1.333 (4:3) screen captured -
      - 1280 x 720 Widescreen
      1.777 (16:9)
      720p HDTV 15x 26.667
      2,073,600 1920 x 1080 1080p HDTV
      852 x 480 480p EDTV DVD
      2,239,488 864 x 2592 3.0 Panoramic film 12x36
      ? ? 1.294 Letter 8.5x11 (300 dpi)
      ? ? 1.5454 Portfolio 11x17 (300 dpi)
      6 mp ? 1.2727 - 11x14
      24,000,000
      8 mp
      4000 x 6000 1.25 medium print 16x20 (250 dpi)  
      11 mp ? 1.333 large print 18x24  
      11 mp ? 1.25 giant print 24x30  
      13,716,864
      14 mp
      4536 x 3024 1.5 24x36 (126 dpi) Kodak Pro 14n DCS SLR
      40,560,000 7800 x 5200 1.5 Colossal 78x52 (100 dpi) Zazzle

      Digital Camera Resolution Chart
      Resolution Internet/email 2x3" 4x6" 5x7" 8x10" 11x14" 16x20"
      <1 MP 3 2 1 1 1 1 1
      1-2 MP 4 3 2 1 1 1 1
      2-3 MP 5 4 3 3 2 1 1
      3-4 MP Overkill 5 5 4 4 3 1
      4-5 MP Overkill 5 5 5 4 4 3
      5-6 MP Overkill 5 5 5 5 4 4
      >6 MP Overkill 5 5 5 5 5 5

         Bad = 1
         Acceptable = 2
         Good = 3
         Very good = 4
         Excellent = 5
         Overkill

      The scheme above should help you when deciding what resolution you'll need.


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    Set this at top of window. Resolving Differences

      Reminder Differences in aspect ratio mean that in order to print digital images onto standard sized photgraphic paper, either the image is cropped or, to avoid cropping, white side edges appear on the paper.

    1. The screen captured graphic marks standard computer screen resolutions, which have a width/height pixels (PICture ELement) aspect ratio of 1.333 (4:3). Wallpapers for two 1024 x 768 screens are 2560 x 1024. Wallpapers for two 1600 x 1200 screens are 3200 x 1200.

      The 4:3 aspect ratio is used by 95% of digicames (DV cameras) to capture images and by American broadcast NTSC standard TV signals.

      The 4:3 aspect ratio is the smallest Pythagorean triple — a set of three integers that satisfies the relationship a^2+b^2=c^2 Its height is 60% (3/5) of the diagonal. Its width is 80% (4/5) of the diagonal.

    2. Higher resolutions are achieved by reducing the size of pixels. Therefore, higher resolution monitors display more pixels per inch. Thus, images appear smaller as resolution increases. So, the density of dots per inch displayed on computer monitors vary from 72 to 92 dpi.
    3. Similarly, printers "scale" output by varying the dots per inch at which it prints. The $100 HP Deskjet 5650 claims it can print at "4800 dpi." While this does enable a large image to squeeze onto a smaller piece of paper, assume that the "effective" resolution of a printer is 300 dpi. This is because to accurately show the color of a pixel, a printer may need to use to slightly overlap as many as 16 drops of ink. (e.g. 4 red, 3 blue, 5 green, 2 yellow and 2 black). The formula is:

        pixels / inches = Resolution dpi
        1200 pixels / 11 inches = 109 dpi
        1200 pixels /  2 inches = 600 dpi

    4. Large posters are printed at 100ppi by zazzle.
    5. Fax machines print at 200 dpi.
    6. Images in newspapers are printed at 150 to 200 ppi.
    7. 300 dpi is needed to produce a photorealistic image.
    8. High quality art books and annual reports are printed at 400 dpi.

    9. Flatbed scanners generally have resolutions ranging from 75dpi to 600 dpi or even 1200dpi.
    10. 35 mm slide or negative film —actually 24mm x 36mm (0.945 x 1.417 inches)— need to be scanned at 2700 ppi or 2880 dpi to print 8x12 inches at 300 ppi (9x enlargement).

    11. 35mm film for popular Kodak, Nikon, Canon cameras take pictures that fit into standard photo paper and store-bought 6x4, 12x8, 11x14 frames that have a 1.5 (3:2) ratio. But each different size of standard prints have a different aspect ratio.

    12. Kodak PhotoCD?

    13. Pentax 6x7 cm and Zeiss "medium format" 6x6 cm square photographic medium format enable beautiful enlargements to 11" and beyond. Mamiya, Rollei or Hasselblad

    14. Epson 2100 prints up to A3+ size (483 x 329mm).

    15. Raw formats like the Tagged Image File Format (tiff) does not correct and modify the image from the sensor. Tiff files can be compressed without any image degradation.


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    Set this at top of window. Stitching Images Together

      The advantage Adobe has is the plugins that others have written to add functionality:

    • To fit digital images on standard 8.5x11 paper: First of all, identify the unprintable portion of the paper for your printer. Some printers require less space at the bottom edge. For example, my Epson Stylus cx5200 has a max. resolution of 5760x1440 (a 4:1 ratio). Epson Stylus Photo printers can print "zero margin" on rolls of photo paper.

      Stitching softwares to create 360 degree views:

      • $500 Stitcher 3.5 from Realviz (a French company) is for the professional who can appreciate different "projections".

        Images pasted side-by-side don't line-up perfectly because of differences in exposure, camera mount level errors, and (most importantly) barrel distortion from the optical properties of the lens, especially wide-angle lenses.

      • Ulead's $40 Cool 360 compared against lesser competitors
        • Live Picture
        • EnRoute QuickStitch
        • PictureWorks Spin Panorama
        • PanaVue Visual Stitcher

        However, more worthy competitors are:

      • Photovista from iseemedia
        Panarama 3.0 $70 Standard Edition for Windows or Macs limits to x images or $186 for the unlimited Business Edition with customizable Java client viewer applet.
        The Virtual Tour assembles panoramas into virtual tours placed on Web sites. Its $250 Standard Edition and $400 Business Edition.

      • ArcSoft's
        $40 Panorama Maker 3 makes horizontal, vertical, tiled, and 360 panoramas using automatic processing and allows fine-tuning of each blend point.

      • Photoshop Elements' Photomerge function (not available in the full Photoshop package).

      • Canon's PhotoStitch software (part of Canon's Solution Disk that comes free with PowerShot and Elph cameras, or $20 separately) is said to be the easiest to use since can extract the focal length from the proprietary codes it saves with its photos.

      The ultimate professional gear suggested by Brain Lawler and Sean Wagstaff

      Digital Photography


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    Set this at top of window. Panoramics


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