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randomly swap fg/bg color in dots/gen

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nagadomi 2016-06-08 06:38:26 +09:00
parent d0630d3a20
commit 3b09bff8cf
1 changed files with 28 additions and 8 deletions
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36
image_generators/dots/gen.lua
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@ -49,26 +49,46 @@ local function dot()
for i = 1, n do
local block = torch.Tensor(3, s, s)
local margin = torch.random(1, 3)
local size = torch.random(1, 4)
local size = torch.random(1, 5)
local mod = gen_mod()
local fg = color(true)
local bg = color()
local swap_color = torch.uniform() > 0.5
local fg, bg
if swap_color then
fg = color()
bg = color(true)
else
fg = color(true)
bg = color()
end
local use_cross_and_skip = torch.uniform() > 0.5
for j = 1, 3 do
block[j]:fill(bg[j])
end
for y = margin, s - margin do
local b = 0
if use_cross_and_skip and torch.random(0, 1) == 1 then
b = torch.random(0, 1)
end
for x = margin, s - margin do
local yc = math.floor(y / size)
local xc = math.floor(x / size)
if mod(yc, xc) then
block[1][y][x] = fg[1]
block[2][y][x] = fg[2]
block[3][y][x] = fg[3]
if use_corss_and_skip then
if torch.uniform() > 0.25 and mod(yc + b, xc + b) then
block[1][y][x] = fg[1]
block[2][y][x] = fg[2]
block[3][y][x] = fg[3]
end
else
if mod(yc + b, xc + b) then
block[1][y][x] = fg[1]
block[2][y][x] = fg[2]
block[3][y][x] = fg[3]
end
end
end
end
block = image.scale(block, s * 2, s * 2, "simple")
if size >= 3 and torch.uniform() > 0.5 then
if (not use_corss_and_skip) and size >= 3 and torch.uniform() > 0.5 then
block = image.rotate(block, math.pi / 4, "bilinear")
end
blocks[i] = block