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Layers

Jul 4, 2011, 23:57
Post: #1
Layers
When trying to open layers in order to make a stitched together panorama, the layers open as too big for the canvas (800 by 600 canvas size). The first attached screenshot shows the actual size of the image when opened as a normal image, and the second screenshot shows the too-large size of the image when opened as a layer in the 800 by 600 canvas... what am I doing wrong?


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Jul 5, 2011, 00:10
Post: #2
RE: Layers
The first screen shot is being shown at 18.2% of it's actual size and the second is at 66.7%

If you look near the bottom left you will see where to change the display to what you would like it to be.

Hope that is helpful Smile
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Jul 5, 2011, 03:16
Post: #3
RE: Layers
OK, I reduced the image using the settings on the lower left, and the screen shot shows what I got. There's go to be something simple that I'm doing wrong, but I'm new to this stuff and I don't know what it could be. Huh


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Jul 5, 2011, 03:33
Post: #4
RE: Layers
I have a lot to learn with it too.

Where you changed the size you can type in a number too instead of choosing from the drop down. Does that help?
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Jul 5, 2011, 05:06
Post: #5
RE: Layers
When I type in my own numbers and hit enter, GIMP shuts down. There's gotta be something simple that I'm missing....
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Jul 5, 2011, 08:17
Post: #6
RE: Layers
You have to give the image a "canvas" big enough to contain the final image. If you stitch together two images that are 4000x3000, you will need a canvas roughly 8000x3000 (actually even 8000 by 4000 ot get some margin for the vertical mismatch). This is done with Image/Canvas size.

It's better to work on the original size and scale down afterwards since the scaling down will usually decrease the visibility of the stitches. If working on full-size image is too much for your computer, use half-size images, this will still give some scale-down room.

This said, stitching images taken handheld with Gimp is a very perilous task if you want good results: slight differences in camera tilt will create differences that are very hard to compensate by hand. I would only consider Gimp if the images are near perfect: taken with the camera on a tripod, with the camera in a special panoramic head.

There is a very good free software for panoramas called "Hugin".

Now answering your questions on
https://Gimp-Forum.net
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Jul 5, 2011, 14:33
Post: #7
RE: Layers
Ah, that's the ticket - make the canvas bigger. I tried it and it works beautifully. I had read a couple of tutorials in regard to canvas size, and in the tutorials they were using smaller canvas numbers, so that's what I thought I needed to be doing.

Alright then, thank you so much for your help ofnuts and Brian, and thanks for the Hugin recommendation... I'll give it a try.
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