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New Function ---- Invert

forums.ps2dev.org Forum Index -> PSP Lua Player Development

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flattspott

Joined: 22 Aug 2005
Posts: 22

Posted: Mon Oct 17, 2005 11:01 am Post subject: New Function ---- Invert

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Code:

function invertImage(theImage)
newImage = Image.createEmpty(theImage:height(), theImage:width())
for x = 1, theImage:width()-1 do
   for y = 1, theImage:height()-1 do
      p = theImage:pixel(y, x)
      c = Color.new(255-p:colors().r,255-p:colors().g,255-p:colors().b)
      newImage:pixel(y, x, c)
   end
end
return newImage
end

test = Image.load("test.png")
p = test:pixel(0, 0)
screen:blit(40, 36, test)
screen:blit(240, 36, invertImage(test))
screen:print(40, 26, "Original", Color.new(255, 255, 255))
screen:print(240, 26, "Inverted", Color.new(255, 255, 255))
screen:print(207, 244, "Invert Function by flattspott", Color.new(255, 255, 255))
screen:flip()
screen.waitVblankStart(600)

The test image:

The screenshot:

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Zenurb

Joined: 30 Sep 2005
Posts: 106
Location: United Kingdom

Posted: Mon Oct 17, 2005 10:04 pm Post subject:

Are you going to add rotate to your image functions library? _________________ Proud Dvorak User US 1.5 PSP (Original)

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