[Pkg-phototools-devel] Bug#927851: hugin: performance in finding image control-points is quite poor

Sat May 11 13:14:46 BST 2019

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Too long, did not read, but I guess NO!

> andrew at a68n:~$ curl
> http://hugin.sourceforge.net/docs/manual/Hugin_Assistant_tab.html <!DOCTYPE
> html> <html class="client-nojs" lang="en" dir="ltr">
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> <body class="mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject
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>                 <div id="content" class="mw-body" role="main">
>                         <a id="top"></a>
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> <h1 id="firstHeading" class="firstHeading" lang="en">Hugin Assistant
> tab</h1>         <div id="bodyContent" class="mw-body-content"> <div
> id="siteSub" class="noprint">From PanoTools.org Wiki</div>
> 
>                                 <div id="mw-content-text" lang="en"
> dir="ltr" class="mw-content-ltr"><div class="mw-parser-output"><p>The <a
> href="Hugin.html" title="Hugin">Hugin</a> assistant automates nearly
> everything needed to create a panorama; just follow the three steps
> described below the partial screen capture of the top half of the screen:
> </p><p><img alt="Hugin2013 assistant tab tophalf.png"
> src="Hugin2013_assistant_tab_tophalf.png" width="820" height="123" /><a
> class="external"
> href="https://wiki.panotools.org/File:Hugin2013_assistant_tab_tophalf.png">[*]</a>
> <br style="clear:both;" /> </p> <h1><a name="1._Load_images..."><span
> class="mw-headline">1. Load images...</span></a></h1> <p>Click on the
> <b>Load images...</b> button to select the photos you want to use in your
> panorama. </p><p>This tries to identify the field of view<a
> class="external" href="https://wiki.panotools.org/Field_of_view">[*]</a> of
> your photos by looking at (EXIF) information stored by the camera itself.
> If this fails, you need to enter the <b>field of view</b> manually, or let
> <a href="Hugin.html" title="Hugin">Hugin</a> calculate it from the <a
> href="Focal_Length.html" title="Focal Length">Focal Length</a> and <a
> href="Crop_factor.html" title="Crop factor">Focal length multiplier</a>.
> </p><p>Also select a <a href="Hugin_Photos_tab.html#Lens_type" title="Hugin
> Photos tab">matching <i>Lens type</i></a> from the drop-down list. If you
> are unsure, try the default <b>Normal (rectilinear)</b>. </p> <h1><a
> name="2._Align..."><span class="mw-headline">2. Align...</span></a></h1>
> <p>Clicking on <b>Align...</b> will use an automatic tool (the one set as
> <i>Default</i> in the <a
> href="Hugin_Preferences.html#Control_Point_Detectors" title="Hugin
> Preferences">Control Point Detectors tab</a> of the Preferences) to match
> images, then use the internal <a href="Hugin.html" title="Hugin">Hugin</a>
> optimiser to align them, correct exposure and white balance. </p><p>A
> preview of the result will be displayed in the bottom half of this screen.
> If this preview looks good, proceed with the third step (the <b>Create
> panorama...</b> button), otherwise you will need to make some changes to
> the images and optimisations of the project in the other tabs. </p> <h1><a
> name="3._Create_panorama..."><span class="mw-headline">3. Create
> panorama...</span></a></h1> <p>Finally, use <b>Create panorama...</b> to
> stitch the panorama to an image file with standard quality settings. If you
> click the <b>Create panorama</b> button the new stitch popup sub-screen
> will be displayed. This will give you an easy to understand overview of the
> options. </p> <div class="thumb tleft"><div class="thumbinner"
> style="width:302px;"><img alt="" src="300px-SimpleGui_stitch_popup.png"
> width="300" height="220" class="thumbimage" /><a class="external"
> href="https://wiki.panotools.org/File:SimpleGui_stitch_popup.png">[*]</a>
> <div class="thumbcaption"><div class="magnify"><a class="external"
> href="https://wiki.panotools.org/File:SimpleGui_stitch_popup.png">[*]</a></div>Screenshot
> of the Create Panorama popup; click for larger versions</div></div></div>
> <p><br style="clear:both;" /> </p><p>Note that in <b>Simple</b> User
> interface mode only the top option <i>Exposure corrected, low dynamic
> range</i> is enabled. </p> <h1><a name="Settings"><span
> class="mw-headline">Settings</span></a></h1> <p>A tab in the
> <i>Preferences</i> dialog (available from the menu) allows you to customise
> some <a href="Hugin_Preferences.html#Assistant" title="Hugin
> Preferences">settings</a> of the assistant. </p> <h1><a
> name="Overview_and_Preview"><span class="mw-headline">Overview and
> Preview</span></a></h1> <p>Both the Overview and the Preview canvas will be
> displayed on all tabs of the Simple Interface, being this <i>Hugin
> Assistant tab</i>, the <a href="Hugin_Preview_tab.html" title="Hugin
> Preview tab">Hugin Preview tab</a>, the <a
> href="Hugin_Main_window.html#Layout" title="Hugin Main window">Hugin Layout
> tab</a>, the <a href="Hugin_Projection_tab.html" title="Hugin Projection
> tab">Hugin Projection tab</a>, the <a href="Hugin_move_drag_tab.html"
> title="Hugin move drag tab">Hugin move drag tab</a> and the <a
> href="Hugin_Crop_tab.html" title="Hugin Crop tab">Hugin Crop tab</a>.
> </p><p><br /> </p> <h2><a name="Overview"><span
> class="mw-headline">Overview</span></a></h2> <div class="thumb tleft"><div
> class="thumbinner" style="width:202px;"><img alt=""
> src="200px-Hugin2013_overview.png" width="200" height="297"
> class="thumbimage" /><a class="external"
> href="https://wiki.panotools.org/File:Hugin2013_overview.png">[*]</a>  <div
> class="thumbcaption"><div class="magnify"><a class="external"
> href="https://wiki.panotools.org/File:Hugin2013_overview.png">[*]</a></div>Screenshot
> of Overview in Panosphere mode</div></div></div> <p>The <b>Overview</b>
> represents an interactive preview of the panorama. </p><p><b>Note:</b>
> Slightly above the image of the sphere you see a dropdown currently
> mentioning <i>mode: Panosphere</i> (which is the default mode). This
> dropdown menu is only available in <b>Expert</b> mode. In <b>Expert</b>
> mode you can choose between the default <i>Panosphere</i> and the <i>Mosaic
> plane</i> mode. </p><p>To show or hide the docked Overview window, check or
> uncheck the "Overview" checkbox option from the "View" menu. Zoom it by
> dragging the handle located at the center of the border to the preview
> canvas. </p><p>To hide or show the grid in both the overview and the
> preview canvas, check or uncheck the "Grid" checkbox option from the "View"
> menu. </p><p>Clicking the small pin icon in the header of the docked
> Overview area (or dragging the Overview title bar) will switch to a
> floating window instead. To put that floating window back in a docked
> position, just drag it in either the top, bottom, left or right boundary of
> the preview's actual image area. </p><p>The default mode is a Panosphere to
> display typical panoramas and can be used to e.g. easily check for errors
> in the nadir or zenith regions. <br style="clear:both;" /> </p> <h2><a
> name="Preview"><span class="mw-headline">Preview</span></a></h2> <p>The
> preview canvas displays a representation of the final stitched output
> panorama. Use the scroll bars to change the horizontal and vertical Field
> of View. </p>
> 
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> </div>                                  <div class="printfooter">
>                                                 Retrieved from "<a
> dir="ltr"
> href="https://wiki.panotools.org/index.php?title=Hugin_Assistant_tab&oldid=15003">https://wiki.panotools.org/index.php?title=Hugin_Assistant_tab&oldid=15003</a>"
> </div> </div></div></body></html>andrew at a68n:~$ 

On Fri, 3 May 2019 16:02:05 +0200
Alexis Murzeau <amubtdx at gmail.com> wrote:

> Hi,
> 
> On Wed, 24 Apr 2019 08:59:18 +0200 andrew glaeser
> <bugs at irregulaire.info> wrote:
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> >
> > Package: hugin
> > Version: 2018.0.0+dfsg-3+b1
> > Severity: normal
> >  
> 
> I'm not a hugin user myself so I don't know much about it but will try
> to understand.
> 
> > [...] Hugin now works fine for me on Debian Testing, and I am
> > looking forward to the Buster release, so I won't have to rely on
> > Jessie-oldstable anymore [...]
> > But, big but, the next day there was a systemd-upgrade and
> > Hugin is now about as bad as it used to be for two years in finding
> > the control-points and making the pto-files.  
> 
> If I understand correctly, the issue is that:
> - while running testing/buster, hugin was working fine
> - after some systemd update in testing/buster, hugin performance
> decreased significantly
> 
> Is this correct ?
> 
> 
> Can you provide a step by step listing of what you do to reproduce the
> issue ?
> Are you using this tool and procedure ?
> http://hugin.sourceforge.net/docs/manual/Hugin_Assistant_tab.html
> 
> If yes, the issue is that when clicking the button "3. Create Panorama",
> hugin takes a longer time to produce the output in testing/buster than
> it used to in jessie + backports ?
> 

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