Image
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Description
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Properties
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paletteRef
symbol like #systemWin, #rainbow etc..
Documented in DIR MX04 for bitmap cast members only.
Image objects do not offer the #palette property, use #paletteRef instead.
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Methods
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copyPixels()
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floodFill()
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Description
see: http://www.macromedia.com/devnet/mx/director/articles/imaging_lingo_06.html (http://www.macromedia.com/devnet/mx/director/articles/imaging_lingo_06.html)
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Gamma Correction
a global handler to gamma-correct an image is here:
on imgGammaCorrect(afGamma, aImg)
--@returns img newImage
--@params float gamma, image
--@descr returns a new, gamma corrected image. does not change orig image
--@author based on Joachim Baur (medienwerkstatt)
--@xmp member(1).image = imgGammaCorrect( 0.9, member(1).image )
invGamma = 1/float(afGamma)
reScale = 255/power(255,invGamma)
h = aImg.height -1
w = aImg.width -1
tImg = image(w+1, h+1,aImg.depth)
repeat with y = 0 to h
repeat with x = 0 to w
origRGB = aImg.getPixel(x,y)
origRGB.colorType = #rgb
corrRed = integer(power(origRGB.red, invGamma)*reScale)
corrGreen = integer(power(origRGB.green,invGamma)*reScale)
corrBlue = integer(power(origRGB.blue, invGamma)*reScale)
tImg.setPixel(x,y,rgb(corrRed, corrGreen, corrBlue))
end repeat
end repeat
return tImg
end imgGammaCorrect
see: medienwerkstatt (http://www.medien-werkstatt.com/joa/gamma/gamma_e.htm)
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