[oS-en] How to stitch scanned papers?
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 How to stitch scanned papers? I have a map that is larger than my scanners, so I took 3 partial scans. I want to stitch them into one single png file. Google says to use Hugin. I can't. The thing insists in asking about type of lenses and panosphere mode. Heck, it is flat paper, not a camera! Is there something that works? - -- Cheers Carlos E. R. (from 15.4 x86_64 at Telcontar) -----BEGIN PGP SIGNATURE----- iHoEARECADoWIQQZEb51mJKK1KpcU/W1MxgcbY1H1QUCZf4CTRwccm9iaW4ubGlz dGFzQHRlbGVmb25pY2EubmV0AAoJELUzGBxtjUfV4UsAn2fSMLKpcrfXtMUJsMDL u/TC41qjAJwLESLK8sJW6FMmX/Ud5VsIsiy/qg== =WpcP -----END PGP SIGNATURE-----
Op vrijdag 22 maart 2024 23:12:29 CET schreef Carlos E. R.:
How to stitch scanned papers?
I have a map that is larger than my scanners, so I took 3 partial scans. I want to stitch them into one single png file. Google says to use Hugin. I can't.
The thing insists in asking about type of lenses and panosphere mode. Heck, it is flat paper, not a camera!
Is there something that works?
-- Cheers
Carlos E. R. (from 15.4 x86_64 at Telcontar) Use Libreoffice Draw, and export that to pdf. Done that really often, works fine
-- Gertjan Lettink a.k.a. Knurpht openSUSE Board openSUSE Forums Team
On 2024-03-22 23:16, Knurpht-openSUSE wrote:
Op vrijdag 22 maart 2024 23:12:29 CET schreef Carlos E. R.:
How to stitch scanned papers?
I have a map that is larger than my scanners, so I took 3 partial scans. I want to stitch them into one single png file. Google says to use Hugin. I can't.
The thing insists in asking about type of lenses and panosphere mode. Heck, it is flat paper, not a camera!
Is there something that works?
Use Libreoffice Draw, and export that to pdf. Done that really often, works fine
Can you move each scan and adjust them till the edges match? Including tilting them a bit. I hoped for something that detects the matching edges. -- Cheers / Saludos, Carlos E. R. (from 15.5 x86_64 at Telcontar)
Op vrijdag 22 maart 2024 23:49:20 CET schreef Carlos E. R.:
Can you move each scan and adjust them till the edges match? Including tilting them a bit.
I hoped for something that detects the matching edges. You can adjust whatever. I've done it by giving each png it's own page,
If you want one long png file use Gimp -- Gertjan Lettink a.k.a. Knurpht openSUSE Board openSUSE Forums Team
On 2024-03-22 23:55, Knurpht-openSUSE wrote:
Op vrijdag 22 maart 2024 23:49:20 CET schreef Carlos E. R.:
Can you move each scan and adjust them till the edges match? Including tilting them a bit.
I hoped for something that detects the matching edges. You can adjust whatever. I've done it by giving each png it's own page,
No, that's not what I want. I want a single png file.
If you want one long png file use Gimp
That's the tool I have used other times, but there must be something specific for the task.
-- Cheers / Saludos, Carlos E. R. (from 15.5 x86_64 at Telcontar)
Carlos, et al -- ...and then Carlos E. R. said... % % How to stitch scanned papers? % % I have a map that is larger than my scanners, so I took 3 partial scans. I [snip] ImageMagick Or I use BimoStitch on my Android phone; it seems pretty good at edge matching. HTH & HAND :-D -- David T-G See http://justpickone.org/davidtg/email/ See http://justpickone.org/davidtg/tofu.txt
On 2024-03-23 02:29, David T-G wrote:
Carlos, et al --
...and then Carlos E. R. said... % % How to stitch scanned papers? % % I have a map that is larger than my scanners, so I took 3 partial scans. I [snip]
ImageMagick
It can join photos, yes, edge to edge; but I need to position the edges manually, one or two centimetres overlap. For this a GUI is needed.
Or I use BimoStitch on my Android phone; it seems pretty good at edge matching.
No, I can not work with such a small display to join the scans.
HTH & HAND
:-D
-- Cheers / Saludos, Carlos E. R. (from 15.5 x86_64 at Telcontar)
Carlos, et al -- ...and then Carlos E. R. said... % On 2024-03-23 02:29, David T-G wrote: % > % > ...and then Carlos E. R. said... % > % % > % How to stitch scanned papers? % > % % > % I have a map that is larger than my scanners, so I took 3 partial scans. I % > [snip] % > % > ImageMagick % % It can join photos, yes, edge to edge; but I need to position the edges % manually, one or two centimetres overlap. For this a GUI is needed. Ah. I thought I recalled it doing edge detection, but I haven't played with it (like about 90% of the amazing functionality :-) Are you sure, or have you checked with the Magick support folks? % % > % > Or I use BimoStitch on my Android phone; it seems pretty good at edge % > matching. % % No, I can not work with such a small display to join the scans. You don't have to; you select from your pile all of the pictures that touch each other and it figures out how they overlap and comes up with one final [huge] image. Way better than trying to do so by hand, too. Good luck! :-) :-D -- David T-G See http://justpickone.org/davidtg/email/ See http://justpickone.org/davidtg/tofu.txt
On 2024-03-23 05:10, David T-G wrote:
Carlos, et al --
...and then Carlos E. R. said... % On 2024-03-23 02:29, David T-G wrote: % > % > ...and then Carlos E. R. said... % > % % > % How to stitch scanned papers? % > % % > % I have a map that is larger than my scanners, so I took 3 partial scans. I % > [snip] % > % > ImageMagick % % It can join photos, yes, edge to edge; but I need to position the edges % manually, one or two centimetres overlap. For this a GUI is needed.
Ah. I thought I recalled it doing edge detection, but I haven't played with it (like about 90% of the amazing functionality :-) Are you sure, or have you checked with the Magick support folks?
I have joined pngs, but I knew the edge was exactly at the limit of the png, there was no overlapping. I can not imagine how to do it with ImageMagic with unknown overlap.
% > % > Or I use BimoStitch on my Android phone; it seems pretty good at edge % > matching. % % No, I can not work with such a small display to join the scans.
You don't have to; you select from your pile all of the pictures that touch each other and it figures out how they overlap and comes up with one final [huge] image. Way better than trying to do so by hand, too.
Good luck! :-)
Ok, I may try. Each of the three photos are about 60 Megs, very big for a tiny procesor.
:-D
-- Cheers / Saludos, Carlos E. R. (from 15.5 x86_64 at Telcontar)
On 2024-03-23 13:49, Carlos E. R. wrote:
On 2024-03-23 05:10, David T-G wrote:
Carlos, et al --
% > % > Or I use BimoStitch on my Android phone; it seems pretty good at edge % > matching. % % No, I can not work with such a small display to join the scans.
You don't have to; you select from your pile all of the pictures that touch each other and it figures out how they overlap and comes up with one final [huge] image. Way better than trying to do so by hand, too.
Good luck! :-)
Ok, I may try. Each of the three photos are about 60 Megs, very big for a tiny procesor.
For some reason, XFCE refuses to connect to my two phones. I will try on other computer later, dunno if broken or needs reboot. I managed to connect with Dolphin and transfer the 3 photos. I told the BimoStitch app the three photos, and it joined two of them automatically, but not the third one. The tool is very intrusive, it pops up video adverts and I have to put away the phone till they end. It asked permission to share my data. I will uninstall it after being done. I try again to join the resulting panorama and the third photo, and it says that it finds no way to do it. So, I'm stuck, this method promises but doesn't work fully. Uninstalled. Hugin should be able to do it, if there is a way to tell it that they are scans, not photos, and that there is no focal length. Huh, google today helps. https://hugin.sourceforge.io/tutorials/scans/en.shtml Hugin tutorial - Stitching flat scanned images -- Cheers / Saludos, Carlos E. R. (from 15.5 x86_64 at Telcontar)
On 2024-03-23 14:36, Carlos E. R. wrote:
On 2024-03-23 13:49, Carlos E. R. wrote:
On 2024-03-23 05:10, David T-G wrote:
Carlos, et al --
Hugin should be able to do it, if there is a way to tell it that they are scans, not photos, and that there is no focal length.
Huh, google today helps.
https://hugin.sourceforge.io/tutorials/scans/en.shtml
Hugin tutorial - Stitching flat scanned images
Doesn't work, it loads corrupted images. See: https://paste.opensuse.org/pastes/c141512d5937 The photos should be visible in hugin, but they are not. Huh! It can load them correctly when converted to jpg! Ok, added the control points. I get to the "Switch to the Photos tab." line, and do as in the screenshot there. https://hugin.sourceforge.io/tutorials/scans/shot-4new.jpg Now it says: Still in the Photos tab we go to Optimize, Where is "Optimize"? I don't have it. See screenshot: https://paste.opensuse.org/pastes/83bf99b17c07 In the "Edit" menu there is an "optimize" entry, but it runs something and asks me to apply or not. Not what the web instructions describe. There is a "panorama preview" button. If I use it, the result is rubbish, it joins the scans on the wrong edge. This is way too complicated :-/ It should be trivial. The android app joins two of the photos automatically and correctly, it just can't manage the third photo. -- Cheers / Saludos, Carlos E. R. (from 15.5 x86_64 at Telcontar)
Am 23.03.24 um 13:49 schrieb Carlos E. R.:
On 2024-03-23 05:10, David T-G wrote:
Carlos, et al --
...and then Carlos E. R. said... % On 2024-03-23 02:29, David T-G wrote: % > % > ...and then Carlos E. R. said... % > % % > % How to stitch scanned papers? % > % % > % I have a map that is larger than my scanners, so I took 3 partial scans. I % > [snip] % > % > ImageMagick % % It can join photos, yes, edge to edge; but I need to position the edges % manually, one or two centimetres overlap. For this a GUI is needed.
Ah. I thought I recalled it doing edge detection, but I haven't played with it (like about 90% of the amazing functionality :-) Are you sure, or have you checked with the Magick support folks?
I have joined pngs, but I knew the edge was exactly at the limit of the png, there was no overlapping.
I can not imagine how to do it with ImageMagic with unknown overlap.
% > % > Or I use BimoStitch on my Android phone; it seems pretty good at edge % > matching. % % No, I can not work with such a small display to join the scans.
You don't have to; you select from your pile all of the pictures that touch each other and it figures out how they overlap and comes up with one final [huge] image. Way better than trying to do so by hand, too.
Good luck! :-)
Ok, I may try. Each of the three photos are about 60 Megs, very big for a tiny procesor.
If it's only one image I'd simply do it with the Gimp, easy and probably faster than searching for a software, install, try... Open one image in the gimp. Enlarge canvas to the full end size or larger. Load the other images as layers. Show only first layer and an adjoining one. Make the adjoining one semi-transparent and move it around until it fits. Make it nontrasparent again. Continue with the remaining layers. Save as jpg, png or whatever (or as xcf if you want to preserve layers) Done. -- Daniel Bauer photographer Basel Málaga Twitter: @Marsfotografo (often explicit nudes) https://www.patreon.com/danielbauer https://www.daniel-bauer.com (nudes)
On 2024-03-23 14:44, Daniel Bauer wrote:
Am 23.03.24 um 13:49 schrieb Carlos E. R.:
On 2024-03-23 05:10, David T-G wrote:
If it's only one image I'd simply do it with the Gimp, easy and probably faster than searching for a software, install, try...
Open one image in the gimp. Enlarge canvas to the full end size or larger. Load the other images as layers. Show only first layer and an adjoining one. Make the adjoining one semi-transparent and move it around until it fits. Make it nontrasparent again. Continue with the remaining layers. Save as jpg, png or whatever (or as xcf if you want to preserve layers) Done.
I will have to do that. Not only moving, though, I need to rotate each one a bit. Now it is lunch and siesta. -- Cheers / Saludos, Carlos E. R. (from 15.5 x86_64 at Telcontar)
Am 23.03.24 um 16:00 schrieb Carlos E. R.:
On 2024-03-23 14:44, Daniel Bauer wrote:
Am 23.03.24 um 13:49 schrieb Carlos E. R.:
On 2024-03-23 05:10, David T-G wrote:
If it's only one image I'd simply do it with the Gimp, easy and probably faster than searching for a software, install, try...
Open one image in the gimp. Enlarge canvas to the full end size or larger. Load the other images as layers. Show only first layer and an adjoining one. Make the adjoining one semi-transparent and move it around until it fits. Make it nontrasparent again. Continue with the remaining layers. Save as jpg, png or whatever (or as xcf if you want to preserve layers) Done.
I will have to do that. Not only moving, though, I need to rotate each one a bit.
Now it is lunch and siesta.
Buen provecho. It's easy to rotate a layer, now there is a full size preview and you can use the keyboard arrows for fine adjustment (as with moving, too). -- Daniel Bauer photographer Basel Málaga Twitter: @Marsfotografo (often explicit nudes) https://www.patreon.com/danielbauer https://www.daniel-bauer.com (nudes)
On 2024-03-23 14:44, Daniel Bauer wrote:
Am 23.03.24 um 13:49 schrieb Carlos E. R.:
On 2024-03-23 05:10, David T-G wrote:
Carlos, et al --
...and then Carlos E. R. said... % On 2024-03-23 02:29, David T-G wrote: % > % > ...and then Carlos E. R. said... % > % % > % How to stitch scanned papers? % > % % > % I have a map that is larger than my scanners, so I took 3 partial scans. I % > [snip] % > % > ImageMagick % % It can join photos, yes, edge to edge; but I need to position the edges % manually, one or two centimetres overlap. For this a GUI is needed.
Ah. I thought I recalled it doing edge detection, but I haven't played with it (like about 90% of the amazing functionality :-) Are you sure, or have you checked with the Magick support folks?
I have joined pngs, but I knew the edge was exactly at the limit of the png, there was no overlapping.
I can not imagine how to do it with ImageMagic with unknown overlap.
% > % > Or I use BimoStitch on my Android phone; it seems pretty good at edge % > matching. % % No, I can not work with such a small display to join the scans.
You don't have to; you select from your pile all of the pictures that touch each other and it figures out how they overlap and comes up with one final [huge] image. Way better than trying to do so by hand, too.
Good luck! :-)
Ok, I may try. Each of the three photos are about 60 Megs, very big for a tiny procesor.
If it's only one image I'd simply do it with the Gimp, easy and probably faster than searching for a software, install, try...
Open one image in the gimp. Enlarge canvas to the full end size or larger. Load the other images as layers. Show only first layer and an adjoining one. Make the adjoining one semi-transparent and move it around until it fits. Make it nontrasparent again.
I have two problems here. One, amazingly, the second scan seems to have a different "scale" or zoom that the first. This is imposible! But it happens. I superimpose horizontal lines, and one centimetre below it, other horizontal lines appear parallel, 1 mm apart. I did the rotation as best as I could, setting the center at the end of the horizontal line mentioned above. And features anywhere else do not match. It is amazing. There is distortion. Different distortion in the two scans of the same paper. And then I try to undo transparency, but I am stuck. I'm probably not doing transparency right. <https://www.google.com/search?q=gimp%3A+change+transparency+of+layer&client=firefox-b-e&sca_esv=7994f51f647571a9&ei=D07_ZaflBJL3i-gP5cG7qAQ&ved=0ahUKEwjnqNamrouFAxWS-wIHHeXgDkUQ4dUDCBA&uact=5&oq=gimp%3A+change+transparency+of+layer&gs_lp=Egxnd3Mtd2l6LXNlcnAiImdpbXA6IGNoYW5nZSB0cmFuc3BhcmVuY3kgb2YgbGF5ZXIyBxAAGIAEGBNIuH1Q6hRYpXBwA3gBkAEAmAGnAaABoxeqAQQzMS4xuAEDyAEA-AEBmAIjoAK9GMICChAAGEcY1gQYsAPCAgUQABiABMICChAAGIAEGIoFGEPCAgYQABgWGB7CAggQABiABBixA8ICCBAAGBYYHhgTwgIKEAAYFhgeGA8YE8ICCBAAGBYYHhgPmAMAiAYBkAYIkgcEMjYuOaAHkZkB&sclient=gws-wiz-serp> To do this, select the layer and then go to Layer > Transparency > Color to Alpha. Within the image editing jargon, “alpha” refers to the “alpha channel” of an image, which controls the transparency level of the pixels. In the “Color to Alpha” window, choose a color that will be considered as transparent. Working with layers on GIMP - PSL Explore PSL Explore https://explore.psl.eu › tools-and-training › tutorials › w... <https://explore.psl.eu/en/tools-and-training/tutorials/working-layers-gimp> Found a different method here: <https://smallbusiness.chron.com/make-semitransparencies-gimp-50854.html> Press "Ctrl-L" to display the Layers toolbox at the right of the GIMP window. You can also click "Windows" at the top and select "Layers" from the menu. The layer that contains the image is selected by default. 3. Click and drag the "Opacity" slider at the top of the Layers toolbox to the left to decrease the opacity and increase the transparency. Trying again this way. I match the two photos at the left tip of the "110" line, where I "pencilled" a tiny black dot on both scans for easier alignment: https://paste.opensuse.org/pastes/ecbec3d8650e You can see how other lines below it do not align. Now I have to rotate on the right end of the images, where I also drew a dot. I will use the first dot as centre of rotation. [...] Done rotating. See: https://paste.opensuse.org/pastes/b09e2b4b1b3c I am aligning on the tiny black dot at the end of the dash to the right of the "35". See how the "36" doesn't align? Maybe this is a scanner defect in the movement of the head. I used 600 dpi. Now unzooming and undoing transparency... wow, the result is perfect to the naked eye, aside from a different colour (even though I did not change scanner settings in xsane).
Continue with the remaining layers. Save as jpg, png or whatever (or as xcf if you want to preserve layers) Done.
Ah, supper time. Spanish time, I mean, it is 23:52. You know that, but I'm hungry :-D Saved work as xcf. Thanks a lot for the method, it is working. -- Cheers / Saludos, Carlos E. R. (from 15.5 x86_64 at Telcontar)
Am 23.03.24 um 23:56 schrieb Carlos E. R.:
On 2024-03-23 14:44, Daniel Bauer wrote: ...
% > % How to stitch scanned papers? % > % I have a map that is larger than my scanners, so I took 3 partial scans. I % > [snip]
If it's only one image I'd simply do it with the Gimp, easy and probably faster than searching for a software, install, try...
Open one image in the gimp. Enlarge canvas to the full end size or larger. Load the other images as layers. Show only first layer and an adjoining one. Make the adjoining one semi-transparent and move it around until it fits. Make it nontrasparent again.
I have two problems here.
One, amazingly, the second scan seems to have a different "scale" or zoom that the first. This is imposible! But it happens. I superimpose horizontal lines, and one centimetre below it, other horizontal lines appear parallel, 1 mm apart.
I did the rotation as best as I could, setting the center at the end of the horizontal line mentioned above. And features anywhere else do not match.
It is amazing. There is distortion. Different distortion in the two scans of the same paper.
And then I try to undo transparency, but I am stuck. I'm probably not doing transparency right.
...
To do this, select the layer and then go to Layer > Transparency > Color to Alpha. ...
Ah, that's something else. Sorry, for me the basic Gimp functions are so very natural that I didn't explain any further...
Found a different method here:
<https://smallbusiness.chron.com/make-semitransparencies-gimp-50854.html>
Press "Ctrl-L" to display the Layers toolbox at the right of the GIMP window. You can also click "Windows" at the top and select "Layers" from the menu. The layer that contains the image is selected by default. 3.
Click and drag the "Opacity" slider at the top of the Layers toolbox to the left to decrease the opacity and increase the transparency.
Yes, that's it in this case.
Trying again this way.
...
Now I have to rotate on the right end of the images, where I also drew a dot. I will use the first dot as centre of rotation.
[...]
Done rotating. See:
https://paste.opensuse.org/pastes/b09e2b4b1b3c
I am aligning on the tiny black dot at the end of the dash to the right of the "35". See how the "36" doesn't align?
Maybe this is a scanner defect in the movement of the head. I used 600 dpi.
Can be that the scanner isn't absolutely accurate, but before buying a new scanner ( :-P ) try: leave the center of rotation in the middle of the layer, do not move that center to any other position. Then rotate. Not sure if this helps, but could be. (You'll have to start with a new image, not use the already rotated layers)
Now unzooming and undoing transparency... wow, the result is perfect to the naked eye, aside from a different colour (even though I did not change scanner settings in xsane).
The scanner probably tries to do a correction finding out which are the correct colors/brightness/contrast, so if the color mix on the different parts of the map is a bit different (e.g. more red lines), it will result in different correction. Maybe you can turn off "automatic exposure/color correction", or save the correction from the first scan and apply it to the others, but I don't know. You can try to adjust the colors in Gimp, but then I'm sure your next post will be in two days :-) There are so many different ways to do that... (Save an xcf with the moved/rotated layers and then work with a copy so you can always go back to the original, or duplicate the layers and work with the duplicates) It also depends on how important is a perfect result. In most cases "good enough" is good enough... -- Daniel Bauer photographer Basel Málaga Twitter: @Marsfotografo (often explicit nudes) https://www.patreon.com/danielbauer https://www.daniel-bauer.com (nudes)
On 2024-03-24 09:44, Daniel Bauer wrote:
Am 23.03.24 um 23:56 schrieb Carlos E. R.:
On 2024-03-23 14:44, Daniel Bauer wrote: ...
% > % How to stitch scanned papers? % > % I have a map that is larger than my scanners, so I took 3 partial scans. I % > [snip]
If it's only one image I'd simply do it with the Gimp, easy and probably faster than searching for a software, install, try...
Open one image in the gimp. Enlarge canvas to the full end size or larger. Load the other images as layers. Show only first layer and an adjoining one. Make the adjoining one semi-transparent and move it around until it fits. Make it nontrasparent again.
I have two problems here.
One, amazingly, the second scan seems to have a different "scale" or zoom that the first. This is imposible! But it happens. I superimpose horizontal lines, and one centimetre below it, other horizontal lines appear parallel, 1 mm apart.
I did the rotation as best as I could, setting the center at the end of the horizontal line mentioned above. And features anywhere else do not match.
It is amazing. There is distortion. Different distortion in the two scans of the same paper.
And then I try to undo transparency, but I am stuck. I'm probably not doing transparency right.
...
To do this, select the layer and then go to Layer > Transparency > Color to Alpha. ...
Ah, that's something else. Sorry, for me the basic Gimp functions are so very natural that I didn't explain any further...
I'm familiar with a limited portion of the tools in gimp, so new learning, no problem :-) Actually, that initial method makes aligning easier: I made transparent the colour of the paper, so that the map lines stood out. The problem is undoing that change later. Maybe there is an easy way to do that. I might, on the final result, do that transparency method before printing the map. You have seen the colour in the links I posted, it is the kind of chemical copies that were done in the past from tracing paper of a land plot map or house plan. ...
...
Now I have to rotate on the right end of the images, where I also drew a dot. I will use the first dot as centre of rotation.
[...]
Done rotating. See:
https://paste.opensuse.org/pastes/b09e2b4b1b3c
I am aligning on the tiny black dot at the end of the dash to the right of the "35". See how the "36" doesn't align?
Maybe this is a scanner defect in the movement of the head. I used 600 dpi.
Can be that the scanner isn't absolutely accurate, but before buying a new scanner ( :-P ) try:
leave the center of rotation in the middle of the layer, do not move that center to any other position. Then rotate.
Not sure if this helps, but could be.
The defect is only visible with a lot of zoom, the eye doesn't see it. So it is acceptable, but it is a surprise to me, I thought the scanner to be more accurate. Yesterday I thought it was the vertical axis, so it would be irregularities in the scanner motion; then I remembered that I had rotated the image 90 degrees, so it is actually the horizontal axis, and that would be defects in the sensor, differences in distance between the individual cells at the left and right ends of the sensor, which is strange.
(You'll have to start with a new image, not use the already rotated layers)
Now unzooming and undoing transparency... wow, the result is perfect to the naked eye, aside from a different colour (even though I did not change scanner settings in xsane).
The scanner probably tries to do a correction finding out which are the correct colors/brightness/contrast, so if the color mix on the different parts of the map is a bit different (e.g. more red lines), it will result in different correction.
Maybe you can turn off "automatic exposure/color correction", or save the correction from the first scan and apply it to the others, but I don't know.
The scanner doing a colour correction of its own between images is not a thing I thought it could do; I thought the colour correction was solely done by software, by xsane. And I don't have it on auto. I did read somewhere that scanners do a calibration run, for calibrating the lamp, when they power up. There is some kind of calibration matrix at the top of the glass beneath the plastic, so not seen from outside. At least that is what I read, I have not disassembled one to see.
You can try to adjust the colors in Gimp, but then I'm sure your next post will be in two days :-) There are so many different ways to do that... (Save an xcf with the moved/rotated layers and then work with a copy so you can always go back to the original, or duplicate the layers and work with the duplicates)
It also depends on how important is a perfect result. In most cases "good enough" is good enough...
Oh, absolutely, this is good enough. It just took me by surprise. -- Cheers / Saludos, Carlos E. R. (from 15.5 x86_64 at Telcontar)
On 2024-03-23 03:21, Carlos E. R. wrote:
one or two centimetres overlap.
You're probably looking for a simpler solution but imagemagick can do it to: https://www.imagemagick.org/Usage/montage/#overlap -- /bengan
On 2024-03-23 08:05, Bengt Gördén wrote:
On 2024-03-23 03:21, Carlos E. R. wrote:
one or two centimetres overlap.
You're probably looking for a simpler solution but imagemagick can do it to:
It can concatenate photos, but AFAIK it can not automatically find what overlap and what giration to use so that there is continuation in the map lines. I don't see any example doing that. -- Cheers / Saludos, Carlos E. R. (from 15.5 x86_64 at Telcontar)
participants (5)
-
Bengt Gördén -
Carlos E. R. -
Daniel Bauer -
David T-G -
Knurpht-openSUSE