Tuesday, December 17, 2013

file formats Images, Videos and Audio

Images
jpeg (Joint Photographic Expert Group)
  -> base line
  -> optimized (the image will place a blank space and show up after it has finished downloading.
  -> progressive (means that the file will load pieces by pieces)

gif (Graphic interface Format)
  -> used for moving photos and supports transparency.

PNG
  -> 16.8 m colors suports animation and transparency more big files size.

tiff
  -> flat image and only understand layered tiff files

BMP
  -> Bit map
2 types of file images lossless(high res files) and lossy (jpeg and gif)



lossless and lossy
lossless files are files that even if you save it many times. the file will never loss its quality.

lossy files are files that losses its quality every time you save it,



raster and vector
raster or bitmap is a composed of tiny rectangular shaped color boxes thats makes the whole image. unlike vector. it is composed of a single colored space that even if you stretch it larger. the file will ever lose its quality.


Videos
mp4 or MPEG-4
 -> is much more used that .MOV
avi
 -> much bigger file size and used for HD videos
3gp
 -> used for phones and has small file size
mov
 -> uses quicktime to play.
mpeg (Moving picture experts group)
 -> like Jpeg its low in quality
flv
 -> used for web.

Audio
mp3
 -> used for cell phones
wav (Waveform Audio File Format)
  -> is used by microsoft
aac (Advanced Audio Coding)
  -> is a lossy file but is more better that MP3
ogg
  ->
midi
  -> used for web,  more faster to load because its small
wma (Windows Media Audio)
  -> is used on windows



Tuesday, December 3, 2013

Learning color space

The color space

there are a wide variety of color space for graphic designing, photography and other color related arts. By mixing the colors Red, Blue and Green and the shades of white and black. the computer monitor is able to connect with us using colors.

Lab(cielab)
 -is a range of colors that has the lightness in it. it can show you the neon or luminance of the color. unlike the CMYK and sRGB they can't bring up luminosity. a device dependent color space.



Pro Photo RGB
 -is the most used color space in photography because unlike sRGB it has a most wide range of colors. it was developed by kodak.


Adobe RGB (1998)
 -is an RGB space that was developed by the Adobe in 1998. it was designed to overpass the CMYK printing colorspace.


sRGB
 -is much smaller color space than Adobe RGB (1998) used for web designing


CMYK
  -a color space that is used for printing. Although it is smaller than other color spaces it is still used because of its relation to printers.


source: http://graphicdesign.about.com/od/colorbasics/a/cmyk.htm
http://www.luminous-landscape.com/tutorials/prophoto-rgb.shtml
http://en.wikipedia.org/wiki/Adobe_RGB_color_space
http://www.kenrockwell.com/tech/adobe-rgb.htm
http://www.lzxindustries.net/?post_type=module&p=1115



Contrast
Repetition
Alignment
Proximity
Tricks and Tips