focus stacking tool with Hugin

[Matou Rameur]

Hello all,

Happy user of Hugin I only used it for making lanscape images and I liked it. I recently began using it for focus stacking. I might have been wrong somewhere but I was not so happ : the resulting images were quite blurred. It looked like the "optimal" image in the stack was not the only one used at any point.
I finally decided to use the Tiff, multilayered output of Hugin to feed a simple program that computes an estimation of the sharpness of each image, and takes the best one at any point. The local sharpness is estimated by a Haar transformation.

I put here a reduced copies of the first image of a sample stack, and the result.

If this program is of interest for Hugin, I can give its source code to the communauty. Just tell me. Again, I admit I did not dig into the way I used Hugin, so my opinion is far from being definitive, and I do not blame anyone, nor anything.

Best regards,

Michel Guitel (France)

[dkloi]

Hi Michel,

You may want to look at https://patdavid.net/2013/01/focus-stacking-macro-photos-enfuse/ Enfuse is normally used for exposure blending https://patdavid.net/2013/07/automatic-exposure-blending-with-enfuse/ but can do exposure stacking as well. There is a standalone enfuse/enblend package http://enblend.sourceforge.net/ but it is also included as part of Hugin

Daniel

[Harry van der Wolf]

Op do 8 jul. 2021 om 00:19 schreef 'dkloi' via hugin and other free panoramic software <hugi...@googlegroups.com>:

Hi Michel,

You may want to look at https://patdavid.net/2013/01/focus-stacking-macro-photos-enfuse/ Enfuse is normally used for exposure blending https://patdavid.net/2013/07/automatic-exposure-blending-with-enfuse/ but can do exposure stacking as well. There is a standalone enfuse/enblend package http://enblend.sourceforge.net/ but it is also included as part of Hugin

Daniel

There is no standalone package. The link you are referring to contains the source code. It allows you to build a standalone version of enblend/enfuse. 

Lux (previously called PV) can also do focus-stacking.

If your software can do the same then please share it. If it can do that even better: great!. 

We can all learn from each other and software that does something better, or faster at same quality, than other software is always welcome.

Harry

[dkloi]

There are precompiled Windows executables on Sourceforge in the zip files.

New tools are always welcome, you may want to look at Enfuse as a starting point for improving its performance.

[Matou Rameur]

Hello all,

I attach the source files and Makefile for focus_stacking_fusion. Feel free to re-use it if it suits your needs.I put CImg.h file in it. It also requires libpng.

Put everything in a directory, compile with make and launch ./focus_stacking_fusion -h to get a brief explanation of its usage.

I compile and use it on Ubuntu 20.04.

I do not pretend it is better than enfuse. I was only unhappy with enfuse default parameters as set by Hugin. I agree with you when you write that I could go further with enfuse and try getting better results with it.

[T. Modes]

matou....@gmail.com schrieb am Montag, 12. Juli 2021 um 18:20:16 UTC+2:

I was only unhappy with enfuse default parameters as set by Hugin. I agree with you when you write that I could go further with enfuse and try getting better results with it.

In the enfuse manual there is a complete section devoted to focus stacking which explains which parameters to use and how to fine-tune them: http://enblend.sourceforge.net/enfuse.doc/enfuse_4.2.xhtml/enfuse.html#sec%3Afocus-stacks--depth-of-field-increase

Maybe this helps you to get better results.

It is also possible to create an user defined output sequence to automate this. I already added a general focus stacking output sequence to the default branch of Hugin, so this should now be easier to start.

Thomas

[Stanley Green]

[David W. Jones]

On July 13, 2021 10:51:04 PM HST, 'Stanley Green' via hugin and other free panoramic software <hugi...@googlegroups.com> wrote:

And this is what? Perhaps an infected Word document?

--
David W. Jones
gnome...@gmail.com
wandering the landscape of god
http://dancingtreefrog.com

Sent from my Android device with F/LOSS K-9 Mail.

[Matou Rameur]

Thank you for these informations. Now, I must read and I should know how to better use the existing tools.

Thank you again, the first reading is not enough !

Michel.

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