Photoshop_Resolution

include component="page" page="menu-photoshop" editable="1" =What is RESOLUTION?= The term **Resolution** is typically used to describe TWO things about a digital image:
 * 1) The **CANVAS SIZE**: The total number of "Dots" or "Pixels" that the total area of the image takes
 * 2) The **OUTPUT RESOLUTION**: How tightly packed together the "Pixels" are programmed to appear when finally printed
 * 3) This is expressed as **"Dots Per Inch" or DPI**. It can also be described as PPI (Pixels per inch) or PPC (Pixels per Centimeter)


 * >  ||= VERY Low Res ||= Low Res ||= "Screen" Res ||
 * >  ||= [[image:Resolution-Happy-Faces01.png]] ||= [[image:Resolution-Happy-Faces02.png]] ||= [[image:Resolution-Happy-Faces03.png]] ||
 * > **Canvas Size:** ||= 20 x 20 px ||= 40 x 40 px ||= 200 x 200 px ||
 * > **Output Resolution:** ||= 9 DPI ||= 18 DPI ||= 90 DPI ||
 * > Total Pixels: ||= 400 ||= 1600 ||= 40,000 ||
 * > Filesize: ||= Very very Low ||= Very Low ||= Low ||

Photoshop stores BOTH of these "measurements" under IMAGE - IMAGE SIZE
 * "Low Res" images
 * Use relatively few pixels that are loosely packed together (ie 20x20 pixels @ 9 DPI)
 * Can be stored in VERY small file space
 * Can appear very crude, jaggy or blurry if enlarged
 * "High Res" images
 * Use MORE pixels to record higher detail
 * Require much more file space
 * Can appear smooth if displayed at their ideal output resolution

Typical Media Resolutions Media** || More can be found on the [|Wikipedia]
 * < **[[image:_Filler100.gif width="132" height="18"]]
 * Canvas Size** || [[image:_Filler100.gif width="132" height="18"]]
 * Output Resolution** ||
 * < Computer Screen || 1024x768 || 90 DPI ||
 * < IPod [|Touch] || 480x320 || 163 DPI ||
 * < 4x6" Photograph || 1200x1800 || 300 DPI ||
 * < 11"x17" Poster || 2200x3400 || 200 DPI ||

When creating a new Photoshop "Canvas" - you need to choose your RESOLUTION first
 * [[image:Photoshop_New01.png]] || You are asked to define the RESOLUTION
 * CANVAS SIZE: Define the HEIGHT and WIDTH in pixels (note - you may need to change the units from inches to pixels)
 * Define the output resolution in "Pixels per inch" (also known as PPI or DPI)
 * The COLOUR MODE should be set as "RGB colour" ||

If you understand all this, you're ready to try the Happy Face exercise