Module:Color contrast: Difference between revisions
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refactor |
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Line 16: | Line 16: | ||
end |
end |
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return v |
return v |
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end |
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local function rgbdec2lum( R, G, B ) |
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⚫ | |||
end |
end |
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Line 25: | Line 29: | ||
local m = l - c/2 |
local m = l - c/2 |
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local |
local r, g, b = m, m, m |
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if( 0 <= h and h < 60 ) then |
if( 0 <= h and h < 60 ) then |
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r = r + c |
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g = g + x |
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elseif( 60 <= h and h < 120 ) then |
elseif( 60 <= h and h < 120 ) then |
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r = r + x |
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g = g + c |
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elseif( 120 <= h and h < 180 ) then |
elseif( 120 <= h and h < 180 ) then |
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g = g + c |
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b = b + x |
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elseif( 180 <= h and h < 240 ) then |
elseif( 180 <= h and h < 240 ) then |
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g = g + x |
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b = b + c |
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elseif( 240 <= h and h < 300 ) then |
elseif( 240 <= h and h < 300 ) then |
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r = r + x |
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b = b + c |
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elseif( 300 <= h and h < 360 ) then |
elseif( 300 <= h and h < 360 ) then |
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r = r + c |
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b = b + x |
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end |
end |
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lum = rgbdec2lum(255*r, 255*g, 255*b) |
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⚫ | |||
end |
end |
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return lum |
return lum |
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Line 81: | Line 85: | ||
local cs = mw.text.split(c or '', '') |
local cs = mw.text.split(c or '', '') |
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if( #cs == 6 ) then |
if( #cs == 6 ) then |
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local R = |
local R = 16*tonumber('0x' .. cs[1]) + tonumber('0x' .. cs[2]) |
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local G = |
local G = 16*tonumber('0x' .. cs[3]) + tonumber('0x' .. cs[4]) |
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local B = |
local B = 16*tonumber('0x' .. cs[5]) + tonumber('0x' .. cs[6]) |
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return rgbdec2lum(R, G, B) |
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L = 0.2126 * R + 0.7152 * G + 0.0722 * B |
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return L |
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elseif ( #cs == 3 ) then |
elseif ( #cs == 3 ) then |
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local R = |
local R = 16*tonumber('0x' .. cs[1]) + tonumber('0x' .. cs[1]) |
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local G = |
local G = 16*tonumber('0x' .. cs[2]) + tonumber('0x' .. cs[2]) |
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local B = |
local B = 16*tonumber('0x' .. cs[3]) + tonumber('0x' .. cs[3]) |
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return rgbdec2lum(R, G, B) |
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L = 0.2126 * R + 0.7152 * G + 0.0722 * B |
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return L |
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end |
end |
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