DIGITAL POSITIVES INDUCTION

layer1 (image)

levels

threshold (simplify) 

hue/ saturation > decide/ visualise color

layer2 (shapes)

hue saturation

knock out (dun want colours to overlap)

press layer 2 shape

command+ click 

magic wand select the shape

press later 1 

delete 

x threshold, keep tone n variety of layer1(image) : halftone >for screen printing

replicate diff gradients > dots 

PS

greyscale tiff

ILLUSTRATOR

print 

output

mode: separation 

printer: bnw

image: positive

ink options: black 

• frequency (high:fine dots, low:big dots)

lpi= frequency

CMYK(for print): ink on paper

• C: cyan(blue), M:magenta(red), Y: yellow, K:key(black)

= 4 colors overprinted to print colour

RGB(for screens): light on monitor

SPOT

= one spot ink is used to print a colour

= as a screen print ink

PANTONE

= spot colour reference system

> accurate colours for branding

> cheaper cuz less colours used

> for colours that are not reproducible using cmyk (fluorescent, metallic)

CMYK separations 

PHOTOSHOP

channels palette (right click> large thumbnails) = channel=positive

save cmyk image 

>ILLUSTRATOR 

place

print

PHOTOSHOP

new doc grayscale

new spot channel > name with 'spot'

solidity= transparency 

add colour> tint (black= darkest tint)

can apply knock out > del> white

command backspace> del objects in channel

add image in channel> blue hue

add text 

select letter

add tint

save as psd

> Ai

print> separations

> turn off cmyk