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imageinterlace
imageinterlace

imageinterlace() active ou désactive le bit d 'entrelacement.
if interlace is 1 the image will be interlaced, and if interlace is 0 the interlace bit is turned off.

imageinterlace() retourne l'état courant d'entrelacement de l 'image.
this function returns whether the interlace bit is set for the image.

si vous voulez générer des images jpeg progressive, vous devez choisir l'entrelacement à l'aide de la fonction imageinterlace().
if you want to output progressive jpegs, you need to set interlacing on with imageinterlace().