[vox-tech] gimp question: layers and resizing

Ken Bloom vox-tech@lists.lugod.org
Mon, 20 Jan 2003 17:37:18 -0800


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> ---ORIGINAL MESSAGE---=20
> Date: Mon, 20 Jan 2003 01:48:33 -0800
> To: vox-tech@lists.lugod.org
> Subject: Re: [vox-tech] gimp question: layers and resizing
> From: Peter Jay Salzman <p@dirac.org>
> Reply-To: vox-tech@lists.lugod.org
>=20
> aha.
>=20
> when you resize an image, it doesn't resize the layers of that image.
> that's why the selection was "clipped".  "layer to imagesize" resizes
> the layer.
>=20
> is that about right?
>=20
> thanks karsten!
> pete
>=20

No. Each pixel stores 3 bytes of color information and one byte of=20
transparency information. When you resize the canvas to make it larger,=20
all of the new pixels are transparent (except on the background layer=20
if one is present). The option "Keep Trans" option makes the GIMP's=20
tools (all of them) modify only the color information. When Keep Trans=20
is unchecked, the tools will operate on color information and=20
transparency information. (Photoshop has a similar feature.)

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