On Tue, Dec 06, 2005 at 07:17:43PM -0800, Carol Spears wrote: > On Tue, Dec 06, 2005 at 03:22:41PM -0800, [EMAIL PROTECTED] wrote: > > On Tue, Dec 06, 2005 at 02:48:57PM -0800, Carol Spears wrote: > > > On Tue, Dec 06, 2005 at 02:21:18PM -0800, [EMAIL PROTECTED] wrote: > > > > > > > > I ended up with two images based on my mask, one with all black in > > > > overexposed areas, one with all black in underexposed areas. > > > > > > > adding a mask should only give you transparency or not transparent > > > > It is confusing to me as to *what* is transparent though, as the actual > > image is not modified until until I paste in my black/white mask (at least > > the way I used it, and I thought you explained it). > > > well, i did not say anthing about layer mode. my idea of what you might > have done is very confused by the introduction of this word into the > description of what you did.
Well you explained how to apply the mask. But yeh, I could not figure out a way to combine the resulting two masked images with a mask. Reading gimp documentation/help about masks has not helped so far :-( > > > > I copied one to a new layer in the other, and selected "addition" as the > > > > layer mode. > > > > > > > a layer mode is not a layer mask. the mask is an easy way to have > > > transparency. the mode mixes the pixels of two layers mathematically. > > > > So, is the best way to combine these images to use layers? > > > it might be a good time to put the image online. below ... > after the mask introduces the transparency to one layer, the mode can be > used to change how the remaining pixels interact with the layer below > it. transparency occurs to one layer. you can see the layer below, but > it is visual only. mode involves two layers. it is much more > complicated to explain and the introduction of it here makes the > discussion almost uselessly complicated. > > > > I have to clean up the mask edges (they are blurred already but need > > > > more > > > > changes) and/or etc. > > > > > > > the levels tool has been useful to me for making blurry images less > > > blurred. > > > > The image is sharp, I mean I used the gaussian blur to avoid hard edges on > > my mask. > > > so are you saying that you successfully cleaned up the mask images or > that you still need to? I'm saying I cleaned it up some, but it might need further cleanup. I did just did everything again (on 1/4 size images ... so I need one another take), and cleaned out specks in the mask. Here's an image showing the two images I started with (using the Canon raw image, I created the two images on the left with different exposures), and the mask I created using the threshold: http://www.aracnet.com/~patman/gimp/gimp-snapshot.jpg Using the above with layer masks, (plus the invert of the threshold mask), I can create the following two (below on left and right), and then combine these in two layers with "addition" mode to create the final image on the far right: http://www.aracnet.com/~patman/gimp/gimp-final.jpg The final image is not much better than the darker image I started with :-( Anyway, it's just hard to get good photos with a snow background, especially white-on-white of the dog and snow. I have another image I want to try this on, even if this didn't get much improvment. -- Patrick Mansfield _______________________________________________ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
