Newsprint

Digital halftoning with optional modulations.
Color Model
How many inks to use just black, rg, rgb (additive), or cmyk
name: color-model type: enum
Red and cyan pattern
Halftoning\/dot pattern to use
name: pattern2 type: enum label:[color-model {rgb} : rgb-label, color-model {cmyk} : cmyk-label] visible:color-model {rgb, cmyk} rgb-label:Red pattern cmyk-label:Cyan pattern
Red and cyan period
The number of pixels across one repetition of a base pattern at base resolution.
name: period2 type: double default: 12.00 minimum: 0.00 maximum: 200.00 ui-minimum: 0.00 ui-maximum: 200.00 ui-gamma: 1.00 ui-step-small: 1.00 ui-step-big: 10.00 ui-digits: 2 label:[color-model {rgb} : rgb-label, color-model {cmyk} : cmyk-label] visible:color-model {rgb, cmyk} rgb-label:Red period cmyk-label:Cyan period
Red and cyan angle
name: angle2 type: double default: 15.00 minimum: -180.00 maximum: 180.00 ui-minimum: -180.00 ui-maximum: 180.00 ui-gamma: 1.00 ui-step-small: 1.00 ui-step-big: 15.00 ui-digits: 2 label:[color-model {rgb} : rgb-label, color-model {cmyk} : cmyk-label] visible:color-model {rgb, cmyk} direction:ccw unit:degree rgb-label:Red angle cmyk-label:Cyan angle
Green and magenta pattern
Halftoning\/dot pattern to use
name: pattern3 type: enum label:[color-model {rgb} : rgb-label, color-model {cmyk} : cmyk-label] visible:color-model {rgb, cmyk} rgb-label:Green pattern cmyk-label:Magenta pattern
Green and magenta period
The number of pixels across one repetition of a base pattern at base resolution.
name: period3 type: double default: 12.00 minimum: 0.00 maximum: 200.00 ui-minimum: 0.00 ui-maximum: 200.00 ui-gamma: 1.00 ui-step-small: 1.00 ui-step-big: 10.00 ui-digits: 2 label:[color-model {rgb} : rgb-label, color-model {cmyk} : cmyk-label] visible:color-model {rgb, cmyk} rgb-label:Green period cmyk-label:Magenta period
Green and magenta angle
name: angle3 type: double default: 45.00 minimum: -180.00 maximum: 180.00 ui-minimum: -180.00 ui-maximum: 180.00 ui-gamma: 1.00 ui-step-small: 1.00 ui-step-big: 15.00 ui-digits: 2 label:[color-model {rgb} : rgb-label, color-model {cmyk} : cmyk-label] visible:color-model {rgb, cmyk} direction:ccw unit:degree rgb-label:Green angle cmyk-label:Magenta angle
Blue and Yellow pattern
Halftoning\/dot pattern to use
name: pattern4 type: enum label:[color-model {rgb} : rgb-label, color-model {cmyk} : cmyk-label] visible:color-model {rgb, cmyk} rgb-label:Blue pattern cmyk-label:Yellow pattern
Blue and Yellow period
The number of pixels across one repetition of a base pattern at base resolution.
name: period4 type: double default: 12.00 minimum: 0.00 maximum: 200.00 ui-minimum: 0.00 ui-maximum: 200.00 ui-gamma: 1.00 ui-step-small: 1.00 ui-step-big: 10.00 ui-digits: 2 label:[color-model {rgb} : rgb-label, color-model {cmyk} : cmyk-label] visible:color-model {rgb, cmyk} rgb-label:Blue period cmyk-label:Yellow period
Blue and Yellow angle
name: angle4 type: double default: 0.00 minimum: -180.00 maximum: 180.00 ui-minimum: -180.00 ui-maximum: 180.00 ui-gamma: 1.00 ui-step-small: 1.00 ui-step-big: 15.00 ui-digits: 2 label:[color-model {rgb} : rgb-label, color-model {cmyk} : cmyk-label] visible:color-model {rgb, cmyk} direction:ccw unit:degree rgb-label:Blue angle cmyk-label:Yellow angle
Black pattern
Halftoning\/dot pattern to use
name: pattern type: enum label:[color-model {white-on-black, black-on-white} : bw-label, color-model {cmyk} : cmyk-label] visible:color-model {white-on-black, black-on-white, cmyk} bw-label:Pattern cmyk-label:Black pattern
Black period
Angle offset for patterns
name: period type: double default: 12.00 minimum: 0.00 maximum: 200.00 ui-minimum: 0.00 ui-maximum: 200.00 ui-gamma: 1.00 ui-step-small: 1.00 ui-step-big: 10.00 ui-digits: 2 label:[color-model {white-on-black, black-on-white} : bw-label, color-model {cmyk} : cmyk-label] visible:color-model {white-on-black, black-on-white, cmyk} bw-label:Period cmyk-label:Black period
Black angle
Angle offset for patterns
name: angle type: double default: 75.00 minimum: -180.00 maximum: 180.00 ui-minimum: -180.00 ui-maximum: 180.00 ui-gamma: 1.00 ui-step-small: 1.00 ui-step-big: 15.00 ui-digits: 2 label:[color-model {white-on-black, black-on-white} : bw-label, color-model {cmyk} : cmyk-label] visible:color-model {white-on-black, black-on-white, cmyk} direction:ccw unit:degree bw-label:Angle cmyk-label:Black angle
Black pullout
How much of common gray to pull out of CMY
name: black-pullout type: double default: 1.00 minimum: 0.00 maximum: 1.00 ui-minimum: 0.00 ui-maximum: 1.00 ui-gamma: 1.00 ui-step-small: 0.00 ui-step-big: 0.10 ui-digits: 3 visible:color-model {cmyk}
Anti-alias oversampling factor
Number of samples that are averaged for antialiasing the result.
name: aa-samples type: int default: 16 minimum: 1 maximum: 128 ui-minimum: 1 ui-maximum: 128 ui-gamma: 1.00 ui-step-small: 1 ui-step-big: 10
Turbulence
Color saturation dependent compression of period
name: turbulence type: double default: 0.00 minimum: 0.00 maximum: 1.00 ui-minimum: 0.00 ui-maximum: 1.00 ui-gamma: 1.00 ui-step-small: 0.00 ui-step-big: 0.10 ui-digits: 3
Blocksize
Number of periods per tile, this tiling avoids high frequency anomaly that angle boost causes
name: blocksize type: double default: -1.00 minimum: -1.00 maximum: 64.00 ui-minimum: -1.00 ui-maximum: 64.00 ui-gamma: 1.00 ui-step-small: 1.00 ui-step-big: 10.00 ui-digits: 2
Angle Boost
Multiplication factor for desired rotation of the local space for texture, the way this is computed makes it weak for desaturated colors and possibly stronger where there is color.
name: angleboost type: double default: 0.00 minimum: 0.00 maximum: 4.00 ui-minimum: 0.00 ui-maximum: 4.00 ui-gamma: 1.00 ui-step-small: 0.00 ui-step-big: 0.10 ui-digits: 3
name: gegl:newsprint
pads: input output
parent-class: GeglOperationPointFilter
categories: render
position-dependent: true
GEGL This page is part of the online GEGL Documentation, GEGL is a data flow based image processing library/framework, made to fuel GIMPs high-bit depth non-destructive editing future.