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relative-luminance
Version:
latest (2.0.1)
2.0.1
2.0.0
1.0.2
1.0.1
1.0.0
0.0.2
0.0.1
0.0.0
calculate relative luminance
github.com/tmcw/relative-luminance
tmcw/relative-luminance
relative-luminance
/
dist
/
index.m.js
3 lines
(2 loc)
•
272 B
JavaScript
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1
2
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var
r=
.2126
,t=
.7152
,n=
.0722
,u=
1
/
12.92
;
function
a
(
r
){
return
Math
.
pow
((r+
.055
)/
1.055
,
2.4
)}
export
default
function
(
e
){
var
o=e[
0
]/
255
,f=e[
1
]/
255
,c=e[
2
]/
255
,i=o<=
.03928
?o*
u
:
a
(o),p=f<=
.03928
?f*
u
:
a
(f),v=c<=
.03928
?c*
u
:
a
(c);
return
i*r+p*t+v*n};
//# sourceMappingURL=index.m.js.map