Panorama Tools FAQ: Though I locked exposure of my camera, my photos show brightness differences

	Panorama Tools FAQ : Techniques and equipment : Though I locked exposure of my camera, my photos show brightness differences
	Even if you lock exposure, you may experience brightness mismatch between images. The main cause is lens flare, multiple light reflexions in your lens when there is a bright light source (i.e. sun) in front of you. It is sometimes possible to avoid this effect - hide the sun behind a tree, wait for a small cloud... BTW, moving clouds can be annoying too ! You may also get problems with your own shadow as you move between shots. Though this is obvious in direct light, effect can be more subtle in a room with diffuse light... What you can do when assembling your pano: - Try to use the new PTstitcher k parameter (brightness/color matching). - Generate a layered PSD file and match photos with levels and/or curves - Widen the blending region. This doesn't work well in detailed zones (ghosts appearing in less-than-perfect stitches) but is fine for more uniform regions (sky). Philo www.philohome.com 2003-Jul-08 08:39 address-suppressed, address-suppressed
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	2003-Jul-08 08:39

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