Color and Images. Color The natural colors we see and the colors we see on computer monitors are...
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Transcript of Color and Images. Color The natural colors we see and the colors we see on computer monitors are...
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