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New changes to ColorQuantization() to select the correct algorithm

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This commit is contained in:
David Capello 2021-06-01 08:55:01 -03:00
parent 66e09857ac
commit 1dce35245c
1 changed files with 21 additions and 10 deletions
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31
scripts/color_quantization.lua
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@ -19,25 +19,25 @@ do
local p = s.palettes[1]
assert(#p == 256)
assert(s.colorMode == ColorMode.RGB)
app.command.ColorQuantization()
app.command.ColorQuantization{ algorithm="rgb5a3" }
assert(#p == 1)
array_to_pixels({ rgba(255, 255, 0), rgba(255, 255, 0),
rgba(255, 255, 0), rgba(255, 255, 0) }, i)
app.command.ColorQuantization()
app.command.ColorQuantization{ algorithm="rgb5a3" }
assert(#p == 1)
assert(p:getColor(0) == Color(255, 255, 0))
array_to_pixels({ rgba(255, 0, 0), rgba(255, 0, 0),
rgba(255, 255, 0), rgba(255, 255, 0) }, i)
app.command.ColorQuantization()
app.command.ColorQuantization{ algorithm="rgb5a3" }
assert(#p == 2)
assert(p:getColor(0) == Color(255, 0, 0))
assert(p:getColor(1) == Color(255, 255, 0))
array_to_pixels({ rgba(255, 0, 0), rgba(255, 0, 0),
rgba(255, 255, 0), rgba(0, 0, 255) }, i)
app.command.ColorQuantization()
app.command.ColorQuantization{ algorithm="rgb5a3" }
assert(#p == 3)
assert(p:getColor(0) == Color(255, 0, 0))
assert(p:getColor(1) == Color(255, 255, 0))
@ -46,7 +46,7 @@ do
-- Convert the background layer to a transparent layer
app.command.LayerFromBackground()
app.command.ColorQuantization{ withAlpha=false }
app.command.ColorQuantization{ algorithm="rgb5a3", withAlpha=false }
assert(#p == 4) -- One extra color for transparent layer
assert(p:getColor(0) == Color(0, 0, 0))
assert(p:getColor(1) == Color(255, 0, 0))
@ -62,14 +62,14 @@ do
array_to_pixels({ rgba(0, 0, 0), rgba(255, 0, 0),
rgba(255, 0, 0), rgba(0, 0, 255) }, i)
app.command.ColorQuantization{ withAlpha=false }
app.command.ColorQuantization{ algorithm="rgb5a3", withAlpha=false }
assert(#p == 4)
assert(p:getColor(0) == Color(0, 0, 0))
assert(p:getColor(1) == Color(0, 0, 0))
assert(p:getColor(2) == Color(255, 0, 0))
assert(p:getColor(3) == Color(0, 0, 255))
app.command.ColorQuantization()
app.command.ColorQuantization{ algorithm="rgb5a3" }
assert(#p == 4)
assert(p:getColor(0) == Color(0, 0, 0, 0))
assert(p:getColor(1) == Color(0, 0, 0))
@ -94,7 +94,7 @@ do
array_to_pixels({ rgba(0, 0, 0), rgba(0, 0, 0),
rgba(0, 0, 0), rgba(0, 0, 255) }, bg)
app.command.ColorQuantization()
app.command.ColorQuantization{ algorithm="rgb5a3" }
assert(#p == 5)
assert(p:getColor(0) == Color(0, 0, 0, 0))
assert(p:getColor(1) == Color(0, 0, 0))
@ -122,15 +122,26 @@ do
rgba(102, 91, 201), rgba(103, 92, 203) }, bg)
app.command.ChangePixelFormat{ format="indexed", rgbmap="rgb5a3" }
local bg = s.cels[1].image
-- Using the 5-bit precision of RGB5A3 will match everything with
-- the first palette entry.
bg = s.cels[1].image
expect_img(bg, { 0, 1,
1, 1 })
app.undo()
app.command.ChangePixelFormat{ format="indexed", rgbmap="octree" }
local bg = s.cels[1].image
bg = s.cels[1].image
expect_img(bg, { 0, 1,
2, 3 })
app.undo()
p:setColor(0, Color(0, 0, 0, 0))
bg = s.cels[1].image
array_to_pixels({ rgba(101, 90, 200, 0), rgba(101, 90, 200),
rgba(102, 91, 201), rgba(103, 92, 203, 0) }, bg)
app.command.ChangePixelFormat{ format="indexed", rgbmap="octree" }
bg = s.cels[1].image
expect_img(bg, { 0, 1,
2, 0 })
end