Re: [gentoo-user] Cellphone VFAT datestamps versus linux datestamps
On Tue, 28 Aug 2018 22:39:51 -0400, Walter Dnes wrote: > Given this info, I can cobble together a short script. A "for" loop > cycles through "*.jpg". Read "CreateDate" from the EXIF data, and feed > it into the "touch" command, which would reset the physical file > datestamp. You don't even need that, exiftool has a FileModifyDate tag, which is the filesystem date not an EXIF tag, so you can simply set FileModifyDate to CreateDate for each file. exiftool '-FileModifyDate pgpAHsNvIxrZW.pgp Description: OpenPGP digital signature
Re: [gentoo-user] Cellphone VFAT datestamps versus linux datestamps
On 8/28/18 10:39 PM, Walter Dnes wrote: > On Mon, Aug 27, 2018 at 11:31:33PM -0400, james wrote > >> Exif is the data particulars form man image(photo) file formats >> >> >> media-libs/exiftool >> Read and write meta information in image, audio and video files > > This is getting "curiouser and curiouser". I should have done this > sooner. I assumed that the datestamp and EXIF data would be the same. > But checking "properties" with gqview shows the EXIF date data is > correct, with the file datestamp being out to lunch... > > [i660][waltdnes][~/camera/20180824] exiftool -T -CreateDate IMG_0363.jpg > 2018:08:24 14:12:19 > > [i660][waltdnes][~/camera/20180824] ll -og IMG_0363.jpg > -rw-r--r-- 1 477731 Jan 26 2013 IMG_0363.jpg > > Given this info, I can cobble together a short script. A "for" loop > cycles through "*.jpg". Read "CreateDate" from the EXIF data, and feed > it into the "touch" command, which would reset the physical file > datestamp. > Your other post; verycool old phone; I to have several flip phones an LG still 'on service. JTAG interfaces to the hardware is even cooler. Gotta get a giant magnifier for that sort of access work. Glad to have helped. If you get into EXIF data. check out "photogammetry" as 2d still photos can be 'stitched' together to create awesome 3D and 3D+motion models. One of the key usages of HPC. If I can only stay healthy SfM (structure from motion) is my latest addiction It's just very very cool technology. Some folks are building 3D-motion models of the inside of their lab. Cover the wall with monitors and then animate the objects inside, work remotely (like a VR game) or walk into the home_lab and work as normal. Building your own, is where the fun is. Get a UAV pilot's license and a sub 1K drone and well, just let your imagination go wild! gqview -- nice piece of old software. I'll have to check it out.. it's age on sourceforge is a bit to worry about. I'd pack it up and put it in /usr/local/ or at least into a github/gitlab/gogs or wherever you archive codes. Lots of stuff is disappearing now, related to geo-tagging and image processing. I've pretty much settled on [ https://gogs.io ] Surely there are plugins for palemoon that yield up EXIF data? (btw palemoon-28.0.0 is very stable). Here are some random points of interest,should your 2D images lead to 3D and beyond; here's a good intro:: https://www.prusaprinters.org/photogrammetry-3d-scanning-just-phone-camera/ Here is the latest read on mixed reality:: https://software.intel.com/en-us/blogs/2018/06/18/siggraph-2018-the-state-of-photogrammetry-in-real-time-graphics And if intel machines get 'out of control' well, we'll just have to jolt the some electrons with odd_spin:: https://github.com/ptresearch/IntelTXE-PoC All of this on gentoo? Sure, that's why I'm working on Hybrid-heterogeneous HPC gentoo clusters. But I'm AMD_Radeon_arm64 open source centric with my work. I'd be most appreciated if anyone can add more detail, list of FOSS codes, or other related packages and details. hth, James
Re: [gentoo-user] Cellphone VFAT datestamps versus linux datestamps
On Mon, Aug 27, 2018 at 11:31:33PM -0400, james wrote > Exif is the data particulars form man image(photo) file formats > > > media-libs/exiftool > Read and write meta information in image, audio and video files This is getting "curiouser and curiouser". I should have done this sooner. I assumed that the datestamp and EXIF data would be the same. But checking "properties" with gqview shows the EXIF date data is correct, with the file datestamp being out to lunch... [i660][waltdnes][~/camera/20180824] exiftool -T -CreateDate IMG_0363.jpg 2018:08:24 14:12:19 [i660][waltdnes][~/camera/20180824] ll -og IMG_0363.jpg -rw-r--r-- 1 477731 Jan 26 2013 IMG_0363.jpg Given this info, I can cobble together a short script. A "for" loop cycles through "*.jpg". Read "CreateDate" from the EXIF data, and feed it into the "touch" command, which would reset the physical file datestamp. -- Walter Dnes I don't run "desktop environments"; I run useful applications
Re: [gentoo-user] Cellphone VFAT datestamps versus linux datestamps
On Mon, Aug 27, 2018 at 10:22:30PM -0500, R0b0t1 wrote > On Mon, Aug 27, 2018 at 9:48 PM, Walter Dnes wrote: > > So I went to an event on Friday August 24th, and snapped some pics on > > my cellphone. Let's just say the datestamps were ridiculous. Is there > > a conversion algorithm or program to correct it? This may be a Windows > > versus linux thing. See attached listing... > > > > The high order bits are incrementing too quickly. I will check in a > bit, but I think you should parse them into epoch time and flip the > endianness. > > What is the brand and model of your cellphone so I can avoid all > products from that company? Correction; the OS is not Windows or Android, but rather KaiOS. This is an Alcatel Go Flip. It gets bad reviews from people used to smartphones who expect easy-to-use wifi, bluetooth, email, and web browsing. The camera is mediocre too. I use the Go Flip mostly as a phone... dohhh. I like it because it's luddite and it has... * a physical keypad * a slot for a user microSD card. Media files, e.g. photos, can be pointed to go to my 32 Gig card. * a user-replacable battery. * a functional FM radio. For an antenna it needs to have ear/head phones plugged into "the jack they didn't have the courage to remove". * no Google Garbage constantly running in the background, so the battery lasts 10 or 11 days on standby. * the option to take any available usable frequency band, or to force 2G or 3G or 4G/LTE. -- Walter Dnes I don't run "desktop environments"; I run useful applications
Re: [gentoo-user] Cellphone VFAT datestamps versus linux datestamps
On Mon, Aug 27, 2018 at 10:48 PM Walter Dnes wrote: > > So I went to an event on Friday August 24th, and snapped some pics on > my cellphone. Let's just say the datestamps were ridiculous. Is there > a conversion algorithm or program to correct it? This may be a Windows > versus linux thing. See attached listing... A tip: gzipping a 7 KB text file before attaching it is not particularly useful and makes it more difficult to view. If it were a plain text attachment, I could just open it in Gmail without leaving my web browser.
Re: [gentoo-user] Cellphone VFAT datestamps versus linux datestamps
On Mon, Aug 27, 2018 at 10:22 PM, R0b0t1 wrote:
> On Mon, Aug 27, 2018 at 9:48 PM, Walter Dnes wrote:
>> So I went to an event on Friday August 24th, and snapped some pics on
>> my cellphone. Let's just say the datestamps were ridiculous. Is there
>> a conversion algorithm or program to correct it? This may be a Windows
>> versus linux thing. See attached listing...
>>
>
> The high order bits are incrementing too quickly. I will check in a
> bit, but I think you should parse them into epoch time and flip the
> endianness.
>
You might mess with the below. Is there a seconds field? It doesn't
quite work, potentially due to the missing info. It still seems too
far off. Run with list as first argument.
EXIF data may work, but I'd be worried the same mistake was made,
assuming the people who wrote the camera software messed with the
drivers.
---
#!/usr/bin/env python3
import sys, os, struct
from datetime import datetime
from pprint import pprint
def main():
for line in open(sys.argv[1], 'r'):
date = ' '.join(line.strip().split()[3:6])
dt = datetime.strptime(date, '%b %d %Y')
pprint(dt)
ts = int(datetime.timestamp(dt))
pprint(ts)
rts = struct.unpack('
Re: [gentoo-user] Cellphone VFAT datestamps versus linux datestamps
On 8/27/18 10:48 PM, Walter Dnes wrote: > So I went to an event on Friday August 24th, and snapped some pics on > my cellphone. Let's just say the datestamps were ridiculous. Is there > a conversion algorithm or program to correct it? This may be a Windows > versus linux thing. See attached listing... > more direct answer... https://www.howtogeek.com/302672/HOW-TO-VIEW-AND-EDIT-PHOTO-EXIF-DATA-ON-ANDROID/ Sure the $2.00 does not hurt, but if you search around there'll be free tools to that read and manipulate EXIF data fields more direct answer... James
Re: [gentoo-user] Cellphone VFAT datestamps versus linux datestamps
On 8/27/18 10:48 PM, Walter Dnes wrote: > So I went to an event on Friday August 24th, and snapped some pics on > my cellphone. Let's just say the datestamps were ridiculous. Is there > a conversion algorithm or program to correct it? This may be a Windows > versus linux thing. See attached listing... > https://en.wikipedia.org/wiki/ExifTool media-libs/exiftool OpenCV.org will have discussion groups where folks know far more than I about images, photos and the myriad of file types were the data is embedded into into the image file, photo or whatever. I'm only recently been exposed to 'photogrammetry' and other associated codes for image processing. One of the key areas for use of my HPC clusters is in using thousands of photos to build 3D and 4D(3D + motion) models. Gentoo is kinda void in advanced imaging codes despite many being open sourced. Here's one where you'll surely find very knowledgeable folks http://www.regard3d.org/ good_hunting James
Re: [gentoo-user] Cellphone VFAT datestamps versus linux datestamps
On 8/27/18 10:50 PM, Walter Dnes wrote: > So I went to an event on Friday August 24th, and snapped some pics on > my cellphone. Let's just say the datestamps were ridiculous. Is there > a conversion algorithm or program to correct it? This may be a Windows > versus linux thing. See attached listing... > Exif is the data particulars form man image(photo) file formats media-libs/exiftool Read and write meta information in image, audio and video files is but one. Surely there are many for the windows platform also look for pages with 'opencv' in the name or description. https://opencv.org Exif is the best keyword to use in searching for tools and codes https://en.wikipedia.org/wiki/ExifTool hth, James
Re: [gentoo-user] Cellphone VFAT datestamps versus linux datestamps
On Mon, Aug 27, 2018 at 9:48 PM, Walter Dnes wrote: > So I went to an event on Friday August 24th, and snapped some pics on > my cellphone. Let's just say the datestamps were ridiculous. Is there > a conversion algorithm or program to correct it? This may be a Windows > versus linux thing. See attached listing... > The high order bits are incrementing too quickly. I will check in a bit, but I think you should parse them into epoch time and flip the endianness. What is the brand and model of your cellphone so I can avoid all products from that company?
[gentoo-user] Cellphone VFAT datestamps versus linux datestamps
So I went to an event on Friday August 24th, and snapped some pics on my cellphone. Let's just say the datestamps were ridiculous. Is there a conversion algorithm or program to correct it? This may be a Windows versus linux thing. See attached listing... -- Walter Dnes I don't run "desktop environments"; I run useful applications list.txt.gz Description: Binary data
