Linefind - Revision history

Bruno: categorise

2011-12-13T15:46:52Z

categorise

Bruno: typos

2011-09-18T21:28:27Z

typos

Thomas: /* General and description */

2011-09-18T12:13:57Z

‎General and description

Thomas: Inital linefind description

2011-09-11T09:15:26Z

Inital linefind description

New page

= General and description =
'''Linefind''' is a detector for vertical features in images. It tries to find vertical lines using the same algorithm as [[Calibrate lens gui#Line detection|Calibrate_lens_gui]] and assign [[Vertical control points|vertical control points]] to them.
It using the [[roll|roll value]], saved in the pto project file, to determine what is "top" and "bottom". So before running '''linefind''' check that your [[roll|roll values]] are correct (E.g. when using images straight from the camera, use a roll value of 0 for landscape and a value of 90 or 270 for portrait images. If your camera has an orientation sensor, [[Hugin]] can detection this information automatically and sets the roll value accordingly when adding such images into Hugin.

= Usage =

The general usage is
linefind -o output.pto input.pto
If the --output/-o switch is missing then the suffix "_line" is added to the filename.

The maximal number of lines added per image can be given with the --lines switch (or short -l):
linefind --lines=10 -o output.pto input.pto
By default maximal 5 lines per image are added to the project file.

'''Attention:''' Keep in mind that more [[Vertical control points|vertical control points]] will dominate the optimisation in favour of [[Control points|"normal" control points]].

Normally '''linefind''' tries to find vertical lines in all images of the project file. If you want to limit the detection to some selected images, you can use the --image/-i switch, e.g.
linefind --image=0 --image=4 -o output.pto input.pto
will only search for vertical lines in image 0 and 4.

← Older revision		Revision as of 15:46, 13 December 2011
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	linefind --image=0 --image=4 -o output.pto input.pto		linefind --image=0 --image=4 -o output.pto input.pto
	will only search for vertical lines in image 0 and 4.		will only search for vertical lines in image 0 and 4.
		+
		+	[[Category:Software:Platform:Windows]]
		+	[[Category:Software:Platform:Linux]]
		+	[[Category:Software:Platform:Mac OS X]]
		+	[[Category:Software:Hugin]]

@@ Line 1: / Line 1: @@
 = General and description =
-'''Linefind''' is a detector for vertical features in images. It tries to find vertical lines using the same algorithm as [[Calibrate lens gui#Line detection|Calibrate_lens_gui]] and assign [[Vertical control points|vertical control points]] to them. The detection runs on the source images, if the input images are [[Rectilinear Projection|rectilinear images]]. In the other cases (e. g. [[Fisheye Projection|fisheye images]]) the input images are reprojected to a [[Equirectangular Projection|equirectangluar projection]] and the detection works on the reprojected images.
+'''Linefind''' is a detector for vertical features in images. It tries to find vertical lines using the same algorithm as [[Calibrate lens gui#Line detection|Calibrate_lens_gui]] and assigns [[Vertical control points|vertical control points]] to them. The detection runs on the source images, if the input images are [[Rectilinear Projection|rectilinear images]]. In the other cases (e. g. [[Fisheye Projection|fisheye images]]) the input images are reprojected to an [[Equirectangular Projection|equirectangular projection]] and the detection works on the reprojected images.
-It using the [[roll|roll value]], saved in the pto project file, to determine what is "top" and "bottom". So before running '''linefind''' check that your [[roll|roll values]] are correct (E. g. when using images straight from the camera, use a roll value of 0 for landscape and a value of 90 or 270 for portrait images. If your camera has an orientation sensor, [[Hugin]] can detection this information automatically and sets the roll value accordingly when adding such images into Hugin.
+It uses the [[roll|roll value]], saved in the pto project file, to determine what is "top" and "bottom". So before running '''linefind''' check that your [[roll|roll values]] are correct (E. g. when using images straight from the camera, use a roll value of 0 for landscape and a value of 90 or 270 for portrait images. If your camera has an orientation sensor, [[Hugin]] can detect this information automatically and sets the roll value accordingly when adding such images into Hugin.
 = Usage =