I have attached a test image in original 1000x1000 pixels and a 4 tiles cut with 800x800 pixels: T00.tif: TrX 0 TrY 0 [pix]. T01.tif: TrX 200 TrY 0 [pix]. T02.tif: TrX 0 TrY 200 [pix]. T03.tif: TrX 200 TrY 200 [pix]. I want to show 4 issues:
1. On site *Optimizer* in table *Image Orientation*, column *Trx*, *TrY*, *TrZ* show only rounded to integer values. 2. On site *Stitcher*, edit fields *Horizontal* and *Vertical* show only rounded to integer values. 3. On site *Stitcher*, button *Calculate field of view*: Calculate for *Vertical* a value that is *Horizontal*-1 (this is reported on my first post). 4. For the correct values, you have to reduce the images FoV. Smaller values result in more accuracy. But values <1.0 does not support by all panotools. This is perhaps not a bug, but I cannot find any better settings, which operate independently of FoV. *Step by step instructions to reproduce the issues* Per default the *-–fullscale* option for *cpfind.exe* is not set. Without this option *cpfind* work not correct (find lesser CPs and misplace this). In the following, I assume that this has been set. Look at *Files* | *Preferences* | *site Control Point Detectors* | *Hugin’s CPFind (Default)*. I have saved the resulting state in the file v10.pto. You can leave out the following steps by simply loading this file. - Open hugin, switch to Expert Interface - With Add images.. load the 4 images T00.tif..T03.tif. Enter in HFOV (v): 10 - Right Click in image table, for rows/images 1..3, Popup menu: Lens |New lens - Select *Optimise* – *Geometric*: Custom parameter - Select *Optimise* – *Photometric*: Custom parameter - On *Optimiser* tab: Select *TrX* and *TrY* and unselect all other parameters - On *Exposure* tab: Unselect all parameters - On *Stitcher* tab: Select *Projection*: Rectilinear - On *Photos* tab: Click *Create control points* button (this creates 6x25=150 CPs) - On Optimiser tab, click the *Optimise now!* button. The result is not show in the table, because Trx and TrY is rounded to an integer! (Issue 1). Now to the error, reported on my first post: - On Stitcher tab, click the *Calculate field of view* button: Hugin calculated: *Horizontal*: 15 *Vertical*: 14 (Issue 3) - Click *Calculate optimal size*, Hugin calculate *Width*: 1204 *Height* 1123 (Issue 3 & 4) - Click *Fit crop to images*, Hugin calculate *Left*: 201 *Top*: 161 *Right*: 1202 * Bottom* 1123 (Issue 3 & 4) - Save as v10err1.pto Click *Stitch!* and look at the generated image: It size is 1001x962 pixels, has left and right a one pixel margin and the red crosses have shadows. The vertical error is significant greater as in X direction. Now we correct issue 3: - Enter *Vertical* 15 - Click *Calculate optimal size*, Hugin calculate *Width*: 1204 *Height* 1204 (Issue 4) - Click *Fit crop to images*, Hugin calculate *Left*: 201 *Top*: 201 (Issue 4) *Right*: 1203 * Bottom:* 1203 (Issue 4) - Save as v10err2.pto Click *Stitch!* and look at the generated image: It size is 1001x1001 pixels. It has on all sites a one pixel margin. The red crosses are OK. Now let us reduce the Issue 5: - Load v1.pto this is the same as v10.pto but the images has HFOV (v)=1 - On *Stitcher* tab, click the *Calculate field of view* button: Hugin calculated: *Horizontal*: 1.5 *Vertical*: 0.5 but show 2 and 1 (Issue 2) - Enter *Vertical*: 1.5, *Horizontal*: 1.5 - Click *Calculate optimal size*, Hugin calculate *Width*: 1200 *Height* 1200 - Click *Fit crop to images*, Hugin calculate *Left*: 200 *Top*: 200 *Right*: 1200 * Bottom*: 1200 - Save as v1ok.pto Click *Stitch!* and look at the generated image: Now we have the expected result! The current pano_modify.exe has the same issues. I think hugin using this program or the same source code. If is fixed then pano_modify.exe --projection=0 --fov=AUTO --canvas=AUTO --crop=AUTO -o out.pto in.pto provides the correct values to the p line in out.pto. -- A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ --- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group. To unsubscribe from this group and stop receiving emails from it, send an email to hugin-ptx+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/hugin-ptx/70df381b-0ff9-4eaf-9f8d-cd5b43d1cc93%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
