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Color
The natural colors we see and the colors we see on computer monitors are different.
CMYK -natural RGB -monitor
Color - CMYK
Cyan, Magenta, Yellow, blacKFour color processReflective color- light from sun
(or bulb) hits an object & color is reflected to our eyes
Print Documents
Color - RGB
“Monitor” colorRed, Green, BlueTV, video, computer monitorsStraight from light source; not
reflective“RGB values” = intensity of colorsHexadecimal code- 6 numbers
Paint program: You can edit individual pixels
Draw program: You can easily resize, insert text and use layers
Bitmapped (pixel-based, paint, raster, Photoshop)
Vector (math-based, object-oriented, draw, Illustrator)
Images- JPEG
Joint Photographic Experts GroupCross platformCompressed (lossy - data removed)Maximum of 16.7 million colors Cannot be transparent, interlaced or
animatedPhotos, images with subtle color
changes, depth, lighting, etc.
Images -GIF
Graphic Interchange FormatCross platformCompressed (lossless - no data
removed)Indexed color -maximum of 256 colorsCan be transparent, interlaced and
animatedSimple illustrations, logos, cartoons
File size vs. Picture size
File Size-how much disk space is used by the file ex. 30kb
Picture Size-the dimensions of the image ex. 150 pixels wide
Both important for speed of download
Resize and/or change resolution