Re: Remote control focus by moving camera
"Dr. N. Busscher" <[email protected]>
| Newsgroups | gmane.comp.multimedia.gphoto.devel |
|---|---|
| Message-ID | <[email protected]> |
Sometimes you can use the following approach to detect the sharpness. > https://www.spiedigitallibrary.org/conference-proceedings-of-spie/7820/1/Print-image-sharpness-analysis-based-on-gray-level-co-occurrence/10.1117/12.866719.short?SSO=1 The texture parameters can be calculated by the pgmtexture prog of the netpbm tools. best greetings Nicolaas On 13.07.21 10:39, Marcus Meissner wrote: > Hi, > > On Mon, Jul 05, 2021 at 10:37:24AM +0000, C V Horie wrote: >> I am using Python/Arduino to control a carriage from which I am taking a mosaic of photos, using Olympus E-M5 ii. >> The shutter is controlled by hacking the USB cable. >> >> I should like to control the manual focus at a constant distance/magnification by moving the camera up and down automatically - like the lens AF system. >> >> Has anyone tackled this problem? > I think I have not heard of such an approach yet, sorry. > > Ciao, Marcus > > > _______________________________________________ > Gphoto-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/gphoto-devel -- # Dr. N. Busscher, University of Kassel # D-37213 Witzenhausen, Nordbahnhofstrasse 1a # tel 0049 (0) 5542 98 1712/1632, Fax: 0049 (0) 5542 98 1713 # web: http://www.uni-kassel.de/go/lebensmittel