NAME¶

Lookup - Translate colors through an xicc.

DESCRIPTION¶

Lookup ICC or CAL colors, Version 1.6.3

SYNOPSIS¶

xicclu [-options] profile_or_cal

-v level

Verbosity level 0 - 2 (default = 1)

-g

Plot slice instead of looking colors up. (Default white to black)

-G s:L:a:b

Override plot slice start with Lab or Jab co-ordinate

-G e:L:a:b

Override plot slice end with Lab or Jab co-ordinate

-f function

f = forward, b = backwards, g = gamut, p = preview if = inverted forward, ib = inverted backwards

-i intent

a = absolute, r = relative colorimetric p = perceptual, s = saturation

-o order

n = normal (priority: lut > matrix > monochrome) r = reverse (priority: monochrome > matrix > lut)

-p oride

x = XYZ_PCS, X = XYZ * 100, l = Lab_PCS, L = LCh, y = Yxy j = CIECAM02 Appearance Jab, J = CIECAM02 Appearance JCh

-s scale

Scale device range 0.0 - scale rather than 0.0 - 1.0

-e flag

Video encode device input as:

-E flag

Video decode device output as:

n

normal 0..1 full range RGB levels (default)

t

(16-235)/255 "TV" RGB levels

6

Rec601 YCbCr SD (16-235,240)/255 "TV" levels

7

Rec709 1125/60Hz YCbCr HD (16-235,240)/255 "TV" levels

5

Rec709 1250/50Hz YCbCr HD (16-235,240)/255 "TV" levels

2

Rec2020 YCbCr UHD (16-235,240)/255 "TV" levels

C

Rec2020 Constant Luminance YCbCr UHD (16-235,240)/255 "TV" levels

-k [zhxrlv]

Black value target: z = zero K, h = 0.5 K, x = max K, r = ramp K (def.) l = extra PCS input is portion of K locus v = extra PCS input is K target value

stle: K level at White 0.0 - 1.0 stpo: start point of transition Wh 0.0 - Bk 1.0 enpo: End point of transition Wh 0.0 - Bk 1.0 enle: K level at Black 0.0 - 1.0 shape: 1.0 = straight, 0.0-1.0 concave, 1.0-2.0 convex

Transfer extra PCS input to dual curve limits

-K parameters

Same as -k, but target is K locus rather than K value itself

-l tlimit

set total ink limit, 0 - 400% (estimate by default)

-L klimit

set black ink limit, 0 - 100% (estimate by default)

-a

show actual target values if clipped

-u

warn if output PCS is outside the spectrum locus

-m

merge output processing into clut

-b

use CAM Jab for clipping

-c viewcond

set viewing conditions for CIECAM97s, either an enumerated choice, or a parameter:value changes

pp - Practical Reflection Print (ISO-3664 P2) pe - Print evaluation environment (CIE 116-1995) pc - Critical print evaluation environment (ISO-3664 P1) mt - Monitor in typical work environment mb - Bright monitor in bright work environment md - Monitor in darkened work environment jm - Projector in dim environment jd - Projector in dark environment tv - Television/Film Studio

pcd - Photo CD - original scene outdoors

ob - Original scene - Bright Outdoors cx - Cut Sheet Transparencies on a viewing box

s:surround

n = auto, a = average, m = dim, d = dark, c = transparency (default average)

w:X:Y:Z

Adapted white point as XYZ (default media white, Abs: D50)

w:x:y

Adapted white point as x, y

a:adaptation

Adaptation luminance in cd.m^2 (default 50.0)

b:background

Background % of image luminance (default 20)

l:imagewhite

Image white in cd.m^2 if surround = auto (default 250)

f:flare

Flare light % of image luminance (default 0)

g:glare

Flare light % of ambient (default 1)

g:X:Y:Z

Flare color as XYZ (default media white, Abs: D50)

g:x:y

Flare color as x, y

The colors to be translated should be fed into standard in, one input color per line, white space separated. A line starting with a # will be ignored. A line not starting with a number will terminate the program. Use -v0 for just output colors.