PanoTools NG:
Re: Re: stitch overlapping screenshots
Nils Holmberg nils.holmberg@... 2020-Apr-21 13:55:45
Hi again, thank you for relevant info, and apologies for late reply. I get the point that panotools was not originally designed for the simpler mosaic use case. Unfortunately, my application environment does not provide the PTGUI to perform these settings:
- Go to the Lens Settings tab and set the Lens type to Rectilinear. Set the Focal Length to a high value (e.g. 1000mm).
- In the Control Points menu choose 'Generate Control Points'
- Go to the Optimizer tab. Deselect the 'Optimize lens focal length' checkbox. At 'Minimize lens distortion', choose 'Heavy'.
So using the bash commands from the wiki (https://wiki.panotools.org/Panorama_scripting_in_a_nutshell#Example_work...), would it be possible for you to indicate where and how the commands would need to modified to reflect the PTGUI settings above?
# install dependencies#sudo apt install hugin-tools enblend
# convert screen recording to framesffmpeg -i vid/fb.mp4 -vf fps=2 img/frame-%04d.png
# rotate images for panorama row
mogrify -rotate -90 img/frame-00*
# hugin project, page 7 in tmp/moz.pdf
pto_gen -o tmp/project.pto img/*.png
# find control points
cpfind -o tmp/project.pto tmp/project.pto
# clean control points
cpclean -o tmp/project.pto tmp/project.pto
# find vertical lines
linefind -o tmp/project.pto tmp/project.pto
# position, photometric optimization
autooptimiser -a -m -l -s -o tmp/project.pto tmp/project.pto
# calculate optimal crop, size
pano_modify --canvas=AUTO --crop=AUTO -o tmp/project.pto tmp/project.pto
# create output
hugin_executor --stitching --prefix=fb- tmp/project.pto
# remap, render images
nona -m TIFF_m -o tmp/fb- tmp/project.pto
# blend remapped images
enblend -o img/project.tif tmp/fb-00*.tif
# remove overlapping images
rm tmp/fb-0000.tif
enblend -o img/project.tif tmp/fb-00*.tif
# no working result
Best wishesNils
#removed#
On Wednesday, April 1, 2020, 10:27:15 AM GMT+2, Erik Krause #removed# [PanoToolsNG] <#removed#> wrote:
Am 01.04.2020 um 08:06 schrieb Nils Holmberg:
> Hi, I'm wondering if panotools can be used to stitch multiple images
> with overlapping identical pixels, e.g. screenshots? The question is
> explained in this stack overflow post: Stitch together images with
> exactly matching (pixel to pixel) overlaps
Yes, could work. Since the images don't have any perspective distortion
this is the same situation like for scanned images are a long mural shot
from different viewpoints. This is called orthographic projection. You
would need to choose a very long focal length to simulate orthographic
projection and set control points on identical features between images.
Overlap should be more than only a few pixels for this to work.
Please note that current GUIs have extended old original panotools to
allow the direct use of multi-viewpoint images. In Hugin this is called
Mosaic Mode, in PTGui Viewpoint Correction.
See: https://wiki.panotools.org/Stitching_a_photo-mosaic or
https://www.ptgui.com/support.html#6_5
--
Erik Krause
http://www.erik-krause.de
#yiv9460662179 #yiv9460662179 -- #yiv9460662179ygrp-mkp {border:1px solid #d8d8d8;font-family:Arial;margin:10px 0;padding:0 10px;}#yiv9460662179 #yiv9460662179ygrp-mkp hr {border:1px solid #d8d8d8;}#yiv9460662179 #yiv9460662179ygrp-mkp #yiv9460662179hd {color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px 0;}#yiv9460662179 #yiv9460662179ygrp-mkp #yiv9460662179ads {margin-bottom:10px;}#yiv9460662179 #yiv9460662179ygrp-mkp .yiv9460662179ad {padding:0 0;}#yiv9460662179 #yiv9460662179ygrp-mkp .yiv9460662179ad p {margin:0;}#yiv9460662179 #yiv9460662179ygrp-mkp .yiv9460662179ad a {color:#0000ff;text-decoration:none;}#yiv9460662179 #yiv9460662179ygrp-sponsor #yiv9460662179ygrp-lc {font-family:Arial;}#yiv9460662179 #yiv9460662179ygrp-sponsor #yiv9460662179ygrp-lc #yiv9460662179hd {margin:10px 0px;font-weight:700;font-size:78%;line-height:122%;}#yiv9460662179 #yiv9460662179ygrp-sponsor #yiv9460662179ygrp-lc .yiv9460662179ad {margin-bottom:10px;padding:0 0;}#yiv9460662179 #yiv9460662179actions {font-family:Verdana;font-size:11px;padding:10px 0;}#yiv9460662179 #yiv9460662179activity {background-color:#e0ecee;float:left;font-family:Verdana;font-size:10px;padding:10px;}#yiv9460662179 #yiv9460662179activity span {font-weight:700;}#yiv9460662179 #yiv9460662179activity span:first-child {text-transform:uppercase;}#yiv9460662179 #yiv9460662179activity span a {color:#5085b6;text-decoration:none;}#yiv9460662179 #yiv9460662179activity span span {color:#ff7900;}#yiv9460662179 #yiv9460662179activity span .yiv9460662179underline {text-decoration:underline;}#yiv9460662179 .yiv9460662179attach {clear:both;display:table;font-family:Arial;font-size:12px;padding:10px 0;width:400px;}#yiv9460662179 .yiv9460662179attach div a {text-decoration:none;}#yiv9460662179 .yiv9460662179attach img {border:none;padding-right:5px;}#yiv9460662179 .yiv9460662179attach label {display:block;margin-bottom:5px;}#yiv9460662179 .yiv9460662179attach label a {text-decoration:none;}#yiv9460662179 blockquote {margin:0 0 0 4px;}#yiv9460662179 .yiv9460662179bold {font-family:Arial;font-size:13px;font-weight:700;}#yiv9460662179 .yiv9460662179bold a {text-decoration:none;}#yiv9460662179 dd.yiv9460662179last p a {font-family:Verdana;font-weight:700;}#yiv9460662179 dd.yiv9460662179last p span {margin-right:10px;font-family:Verdana;font-weight:700;}#yiv9460662179 dd.yiv9460662179last p span.yiv9460662179yshortcuts {margin-right:0;}#yiv9460662179 div.yiv9460662179attach-table div div a {text-decoration:none;}#yiv9460662179 div.yiv9460662179attach-table {width:400px;}#yiv9460662179 div.yiv9460662179file-title a, #yiv9460662179 div.yiv9460662179file-title a:active, #yiv9460662179 div.yiv9460662179file-title a:hover, #yiv9460662179 div.yiv9460662179file-title a:visited {text-decoration:none;}#yiv9460662179 div.yiv9460662179photo-title a, #yiv9460662179 div.yiv9460662179photo-title a:active, #yiv9460662179 div.yiv9460662179photo-title a:hover, #yiv9460662179 div.yiv9460662179photo-title a:visited {text-decoration:none;}#yiv9460662179 div#yiv9460662179ygrp-mlmsg #yiv9460662179ygrp-msg p a span.yiv9460662179yshortcuts {font-family:Verdana;font-size:10px;font-weight:normal;}#yiv9460662179 .yiv9460662179green {color:#628c2a;}#yiv9460662179 .yiv9460662179MsoNormal {margin:0 0 0 0;}#yiv9460662179 o {font-size:0;}#yiv9460662179 #yiv9460662179photos div {float:left;width:72px;}#yiv9460662179 #yiv9460662179photos div div {border:1px solid #666666;min-height:62px;overflow:hidden;width:62px;}#yiv9460662179 #yiv9460662179photos div label {color:#666666;font-size:10px;overflow:hidden;text-align:center;white-space:nowrap;width:64px;}#yiv9460662179 #yiv9460662179reco-category {font-size:77%;}#yiv9460662179 #yiv9460662179reco-desc {font-size:77%;}#yiv9460662179 .yiv9460662179replbq {margin:4px;}#yiv9460662179 #yiv9460662179ygrp-actbar div a:first-child {margin-right:2px;padding-right:5px;}#yiv9460662179 #yiv9460662179ygrp-mlmsg {font-size:13px;font-family:Arial, helvetica, clean, sans-serif;}#yiv9460662179 #yiv9460662179ygrp-mlmsg table {font-size:inherit;font:100%;}#yiv9460662179 #yiv9460662179ygrp-mlmsg select, #yiv9460662179 input, #yiv9460662179 textarea {font:99% Arial, Helvetica, clean, sans-serif;}#yiv9460662179 #yiv9460662179ygrp-mlmsg pre, #yiv9460662179 code {font:115% monospace;}#yiv9460662179 #yiv9460662179ygrp-mlmsg * {line-height:1.22em;}#yiv9460662179 #yiv9460662179ygrp-mlmsg #yiv9460662179logo {padding-bottom:10px;}#yiv9460662179 #yiv9460662179ygrp-msg p a {font-family:Verdana;}#yiv9460662179 #yiv9460662179ygrp-msg p#yiv9460662179attach-count span {color:#1E66AE;font-weight:700;}#yiv9460662179 #yiv9460662179ygrp-reco #yiv9460662179reco-head {color:#ff7900;font-weight:700;}#yiv9460662179 #yiv9460662179ygrp-reco {margin-bottom:20px;padding:0px;}#yiv9460662179 #yiv9460662179ygrp-sponsor #yiv9460662179ov li a {font-size:130%;text-decoration:none;}#yiv9460662179 #yiv9460662179ygrp-sponsor #yiv9460662179ov li {font-size:77%;list-style-type:square;padding:6px 0;}#yiv9460662179 #yiv9460662179ygrp-sponsor #yiv9460662179ov ul {margin:0;padding:0 0 0 8px;}#yiv9460662179 #yiv9460662179ygrp-text {font-family:Georgia;}#yiv9460662179 #yiv9460662179ygrp-text p {margin:0 0 1em 0;}#yiv9460662179 #yiv9460662179ygrp-text tt {font-size:120%;}#yiv9460662179 #yiv9460662179ygrp-vital ul li:last-child {border-right:none !important;}#yiv9460662179