Horizontal (and vertical) lines are bowed by it. Lens, but it is a frequent problem in shooting wide-angle shots, That's called "barrel distortion" - it can get better or worseĭepending on which camera you use, or which wide-angle adapter I'll see if I can find software to correct this problem. I didn't know that there was something like barrel distortion. Straight so that it can be stitched together in a panorama better? How can I manipulate my image so that the horizon look more Near the top or bottom of the photo, the line is straight but But in those shots where the horizon appear In some photos where the horizon appears in the middle of the photo These photos is not a straight line but an arc. I took photos for making a panorama, but the horizon in each of On the other hand, if centering your horizon avoids the problem, and also prevents the horizon from becoming and S curve in a 360 degree panorama, then maybe you should just keep centering your horizon line - your stitched pano will be a very big file, so you could crop some of the sky or ground out of it later if you didn't like the symmetrical composition. You can also buy photoshop plug-ins like "Debarrelizer" which fix this. I know panaview image assembler lets you type in a number for the amount of barrel (or pincushion) distortion, and fixes it as it stitches. Luckily, many panorama stitching programs have a built-in function to correct for different levels of barrel distortion. That's called "barrel distortion" - it can get better or worse depending on which camera you use, or which wide-angle adapter lens, but it is a frequent problem in shooting wide-angle shots, horizontal (and vertical) lines are bowed by it.
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