Sunday, October 16, 2011

Image printing and file sizes/types

This is a graph showing the differences between what you can see, what you can see on a computer, and what you can print. Martha talked about this, but the graph helps me to see whats really going on. Before this I always thought red was red, turns out there's a big difference!

Heres some more random information about Printing, Photoshoping, etc. I have a whole powerpoint from my Photography class I anyone wants to see it.

  • JPEG- is a graphic image created  by choosing from a range of compression qualities
  • PSD- native file format of the Adobe Photoshop, enables editing
  • RAW- A image file that contains minimally processed data from the camera
  •  Resolution- determines width and height of the image in pixels and he size and density of pixels within a square inch- how large the pixels will be when you print
  • SPI- samples per inch- scanners
  • DPI- dots per inch- printers
  • PPI- pixels per inch- computers
  • Resampling/interpolating- when you try to increase your resolution- magically go from 72 PPI to 200 PPI
  •  Printers and Computers also don't look the same because they use different light (transmitted vs. reflected light)
  • Glossy Paper- gives a deeper, more brilliant, saturated color
  • Matte Paper- will not produce good strong blacks unless you have a printer that can use special black ink for matte papers
  • Copy Paper- absorbs a lot of ink and, thus, produces muted flat colors
I could keep going but you probably stoped reading already so just ask me (Shannon) if you have any questions.

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