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Step 4Preparing the photos in Hugin
Now, go to the folder in your start menu where you intalled Hugin, and open it.
When you open hugin, it may pop up with a window, asking you for the "crop factor" for your camera. I can't tell you what this is, since it's different for each camera (Unless you happen to have a Sony DSC-S40, like me, in which case, it's 6.57). This window show you how to find the crop factof for your camera. It's 43.3 divided by the diagonal size of your CCD chip, in millimeters. Search the internet, or the instruction manual, for this information about your camera. If you can only find the length and width of the imaging chip, thehn just remember back to elementary school geometry: a2+b2=c2 ;-)
Click File>Open, and open the PTO file you created in the last step.
It should now list all the photos you're using, under the images tab. You can click on a picture and it will show you a preview. Nifty.
Speaking of previews, click on the third button from the right, on the toolbar at the top of the window, and it should show you a little preview of what your panorama is going to look like. Looks pretty crappy, right? Don't worry, we'll fix it.
First thing we'll want to do is add in some vertical and horizontal guides. click on the "control points" tab, and it should bring up a window with two pictures, one on the left, and one on the right. Select make sure they're both the same picture. Next, pick out something in the picture that is obviously supposed to be a horizontal line (like the horizon) or obviously supposed to be a vertical line (like a lamp-post or a building). Click at one end of the line on the LEFT image, and then click at the other end of the line on the RIGHT image. If a window pops up, saying there's no similarity between those two points, don't worry about it, and click ok. Now, click "add" in the lower-right corner, and it should add a guide between those two lines. It should be able to automatically tell whether you were trying to make a vertical line or a horizontal line. Repeat this for every obvious vertical or horizontal line, on each photo.
Next, just go over to the "Camera and lens" tab, and click on one of the photos. Do you see anything besides 0 under "Barrel (b)"? If so, then your camera has barrel distortion; remember it.
Now, go to the "Optimizer" tag, and check "Positions (incremental from anchor" from the dropdown box, and click "Optimize now!" then click "apply" when it's done. Do the same thing for "Positions (y, p, r)" and "Positions and Barrel Distortion," if your camera has barrel distortion.
Now, click that preview icon, again. Click "center" and "fit," if your panorama is all small and off to one side. It should look alot better than it did, before. If not? Maybe add some more guides. After you do, be sure to optimize again.
Now it's time to process all of this, using Hugin.
When you open hugin, it may pop up with a window, asking you for the "crop factor" for your camera. I can't tell you what this is, since it's different for each camera (Unless you happen to have a Sony DSC-S40, like me, in which case, it's 6.57). This window show you how to find the crop factof for your camera. It's 43.3 divided by the diagonal size of your CCD chip, in millimeters. Search the internet, or the instruction manual, for this information about your camera. If you can only find the length and width of the imaging chip, thehn just remember back to elementary school geometry: a2+b2=c2 ;-)
Click File>Open, and open the PTO file you created in the last step.
It should now list all the photos you're using, under the images tab. You can click on a picture and it will show you a preview. Nifty.
Speaking of previews, click on the third button from the right, on the toolbar at the top of the window, and it should show you a little preview of what your panorama is going to look like. Looks pretty crappy, right? Don't worry, we'll fix it.
First thing we'll want to do is add in some vertical and horizontal guides. click on the "control points" tab, and it should bring up a window with two pictures, one on the left, and one on the right. Select make sure they're both the same picture. Next, pick out something in the picture that is obviously supposed to be a horizontal line (like the horizon) or obviously supposed to be a vertical line (like a lamp-post or a building). Click at one end of the line on the LEFT image, and then click at the other end of the line on the RIGHT image. If a window pops up, saying there's no similarity between those two points, don't worry about it, and click ok. Now, click "add" in the lower-right corner, and it should add a guide between those two lines. It should be able to automatically tell whether you were trying to make a vertical line or a horizontal line. Repeat this for every obvious vertical or horizontal line, on each photo.
Next, just go over to the "Camera and lens" tab, and click on one of the photos. Do you see anything besides 0 under "Barrel (b)"? If so, then your camera has barrel distortion; remember it.
Now, go to the "Optimizer" tag, and check "Positions (incremental from anchor" from the dropdown box, and click "Optimize now!" then click "apply" when it's done. Do the same thing for "Positions (y, p, r)" and "Positions and Barrel Distortion," if your camera has barrel distortion.
Now, click that preview icon, again. Click "center" and "fit," if your panorama is all small and off to one side. It should look alot better than it did, before. If not? Maybe add some more guides. After you do, be sure to optimize again.
Now it's time to process all of this, using Hugin.
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