COLOR TEST

green

associated with money, wealth, serenity, nature, freshness, healing, fertility and inexperience

green

strong emotional correspondence with safety

green

most restful color to the human eye

culture

influences color meaning

bitmap, greyscale, RGB color, CMYK color, lab color, indexed color, duotone, multichannel

color modes in Photoshop

color modes

determines how a digital image will be represented on screen or in print

RGB

(red, green, blue) color mode used for digital and web

CMYK

(cyan, magenta, yellow, black) color mode used for print

Spot

color mode used for offset print

1

minimum amount of channels in an image

channel

stores information about color elements in an image

bitmap, grayscale, duotone and indexed

color modes that have 1 channel

rgb and lab

color modes that have 3 channels

cmyk

color mode that has 4 channels

channels

grayscale images that represent each of the color components of the image

alpha channels

channels used for storing and editing selections as masks

spot color channels

channels used to add spot color plates for printing

bit depth

specifies how much color information is available for each pixel

8-bit per pixel

256 possible values for each channel and over 16 million possible color values

24-bit images

RGB images with 8-bit per channel

True color images

RGB images with 24-bit

HDR

High Dinamic Range

High Dinamic Range Images

16-bpc or 32-bpc images

bits in a bitmap

1 bit

bits in grayscale

8 bit, 16 bit, 32 bit

bits in RBG

8 bit, 16 bit, 32 bit

bits in CMYK

8 bit, 16 bit

bits in Lab

8 bit, 16 bit

use for indexed color mode

web page design

use for grayscale color mode

image processing

10-bit depth is visually identical to

14 bit or more

bitmap color mode

mode with two colors, black&white, 1 bit color depth

Bitmap or Raster image

the way the drawing package draws the graphic

Microsoft Bitmap

the raster image file format .bmp used to store bitmap digital images, independently of the display device, especially on Microsoft Windows and OS/2 operating systems

Scanners

can capture images with 1.200 – 9.600 ppi

Pantone

standardized color reproduction system

Gestalt

German term for unified whole, refering to the way in which humans, when looking at a group of objects, will see the whole before individual parts

Emergence

Our minds tend to see simple, strong objects faster than the detailed ones. We tend to see elements in the general form first.

Reification

We are able to see or deduct the whole object even if there are missing element or it is incomplete.

Multistability

There is always more than one way we can perceive a particular object. However, our mind always decides one point of view to be dominant after a while.

Invariance

The human brain creates a simplified projection of the particular object in mind. Thanks to this we can recognize thing independently of its size changes, rotation or other transformations.

Proximity Principle

Elements that are close to each other tend to be related.

Similarity Principle

Elements that have similar visual appearance seems to be more related or grouped than the ones not sharing the same attributes.

Continuity Principle

Our perception tends to see object arranged in lines or curves as more related or grouped.

Clousure Principle

Objects are often perceived as a whole thing, even when they are incomplete. Our mind quickly fills the gaps and helps us to find the meaning and intention of a particular thing.

Symmetry Principle

Our mind perceives symmetrical objects as parts of the same group. They create an impression of stability and order.

Common Fate Principle

When the elements tend to move in the same direction we perceive them as part of the same group.

Figure-Ground Principle

The human eye is able to separate object on different plans of focus. We know which elements are placed in the foreground and with ones are in the background intuitively.

Common Region Principle

Objects placed within the same region are perceived to be in the same group.

Periodicity Principle

Elements that appear multiple times in similar distances are perceived as related.

Penrose's Impossible Staircase

Klein Bottle

Moebius Strip

Bezold Effect

Blivet

Cafe Wall Illusion

Ebbinghaus Illusion

Fraser Spiral

Hering Illusion

Hermann Grid Illusion

The Chubb Illusion

Poggendorff Illusion

Isometric Illusion

Jastrow Illusion

Kanizsa Triangle

Lilac Chaser (Pacman Illusion)

Necker Cube

Orbison Illusion

Impossible Cube Illusion

Synesthesia

2 or more senses are connected (ex: hearing colors)

Color

visual effect caused by the spectral composition of the light emitted, transmitted or reflected by objects

Hue

A pure color, one without tint or shade, added white or black pigment, respectively

Value/Brightness

The quality lightness or darkness. Black is a dark value or low value. White is a light value or high value

Saturation/Chroma

The quality of a color's purity, intensity or saturation

HSL

Color mode: Hue, saturation and luminosity

Byte

smallest unit of digital information, normally consisting of 8-bit