Adding date time stamp to a jpg picture - Raspberry Pi Forums

MrPippoTN

Posts: 9

Joined: Wed Oct 02, 2013 5:54 am

Adding date time stamp to a jpg picture

Hello.

I’m a complete beginner and I’m trying to convert my Raspberry Pi in a weather cam. I’m not interested in streaming, I’m using a camera module and some raspistill commands in order to take a picture of a landscape every 5 minutes. Then I send the picture to my website using ftp. Everything is going fine but now I need help to add a couple of informations like my website and date time stamp to a jpg picture shot.

Here’s an example of what I’d like to obtain:

Adding date time stamp to a jpg picture - Raspberry Pi Forums - 图1

At the moment I use this bash script:

Code: Select all

  1. #!/bin/bash
  3. TMP='/tmp'
  4. OUTPUT_FILE='webcam.jpg'
  5. OPTIONS='-w 800 -h 600 -q 80'
  7. cd $TMP
  8. raspistill -o $OUTPUT_FILE $OPTIONS
  9. /usr/local/bin/send-ftp $OUTPUT_FILE

How can I modify it? The goal is adding to the jpeg image a colored band with my website url on the left and date and hour of the shot on the right? Any suggestion?

Last edited by MrPippoTN on Sat Oct 05, 2013 7:09 am, edited 2 times in total.

Adding date time stamp to a jpg picture - Raspberry Pi Forums - 图2

joan

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DougieLawson

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Re: Adding date time stamp to a jpg picture

Wed Oct 02, 2013 12:04 pm

Update your program running raspistill to have the -exif flag.

Install ImageMagick with

Try this shell script:

Code: Select all

  1. #!/bin/bash
  3. for file in *.jpg ; do
  4.    convert "$file" -font arial.ttf \
  5.       -pointsize 72 -fill white -annotate +100+100  \
  6.       %[exif:DateTimeOriginal] "new-${file}"
  7. done

That reads the EXIF data in filename.jpg and writes a new new-filename.jpg (in the same directory) with the date/time as an additional visible layer.

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MrPippoTN

Posts: 9

Joined: Wed Oct 02, 2013 5:54 am

Re: Adding date time stamp to a jpg picture

Thu Oct 03, 2013 3:24 pm

DougieLawson wrote:Update your program running raspistill to have the -exif flag. Install ImageMagick with Try this shell script: Code: Select all ```

!/bin/bash

for file in *.jpg ; do convert “$file” -font arial.ttf \ -pointsize 72 -fill white -annotate +100+100 \ %[exif:DateTimeOriginal] “new-${file}” done

  1. > That reads the [EXIF](http://en.wikipedia.org/wiki/EXIF) data in filename.jpg and writes a new new-filename.jpg (in the same directory) with the date/time as an additional visible layer.
  4. Thank you, I'll try it tonight. Meanwhile, I've another question: and if my picture has no exif informations?
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  17. <a name="9a21e1ac"></a>
  18. ### [Re: Adding date time stamp to a jpg picture](#p431839)
  20. [Thu Oct 03, 2013 3:25 pm](https://www.raspberrypi.org/forums/viewtopic.php?p=431839&sid=bf91a0cdced1b37d4aa7e5f9145ec7ec#p431839)
  22. > MrPippoTN wrote:
  23. > > DougieLawson wrote:Update your program running raspistill to have the -exif flag.
  24. > Install ImageMagick with
  25. > Try this shell script:
  26. > Code: [Select all](#)
  27. >

!/bin/bash

for file in *.jpg ; do convert “$file” -font arial.ttf \ -pointsize 72 -fill white -annotate +100+100 \ %[exif:DateTimeOriginal] “new-${file}” done

  1. > That reads the [EXIF](http://en.wikipedia.org/wiki/EXIF) data in filename.jpg and writes a new new-filename.jpg (in the same directory) with the date/time as an additional visible layer.
  3. > Thank you, I'll try it tonight. Meanwhile, I've another question: and if my picture has no exif informations?
  6. The date and time should be in there if the pictures were taken with a recent RaspiStill..
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  9. Contrary to popular belief, humorous signatures are allowed. Here's an example...<br />
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  20. <a name="d0b1d4c1"></a>
  21. ### [Re: Adding date time stamp to a jpg picture](#p432171)
  23. [Fri Oct 04, 2013 6:38 am](https://www.raspberrypi.org/forums/viewtopic.php?p=432171&sid=bf91a0cdced1b37d4aa7e5f9145ec7ec#p432171)
  25. It works, thank you. Now I can see the date in this format:<br />
  26. yyyy:mm:dd hh:mm:ss
  28. Is it possible to change this? I'd like to get:<br />
  29. dd/mm/yyyy hh:mm
  31. Another little question. Now I put the datestamp in the lower right corner but it is white, so it's difficult to read. Can I put a layer with a black horizontal band at the bottom of the picture?
  33. Thank you in advance.
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  47. <a name="f0d7c028"></a>
  48. ### [Re: Adding date time stamp to a jpg picture](#p432720)
  50. [Sat Oct 05, 2013 7:08 am](https://www.raspberrypi.org/forums/viewtopic.php?p=432720&sid=bf91a0cdced1b37d4aa7e5f9145ec7ec#p432720)
  52. I think I've done it. I used Imagemagick to compose the final image (webcam.jpg) using a layer (striscia.png)<br />
  53. Thank you very much!!!
  55. ![](http://www.meteotrentinoaltoadige.it/webcam/raspicam/webcam.jpg#align=left&display=inline&height=600&originHeight=600&originWidth=800&status=done&style=none&width=800)
  57. These are my two files:
  59. shot:
  61. Code: [Select all](#)

!/bin/sh

OPTIONS=’-w 800 -h 600 -q 80 -x’ DATE=$(date +”%d/%m/%Y”) HOUR=$(date +”%R”)

cd /tmp raspistill -o image.jpg $OPTIONS composite -gravity center striscia.png image.jpg pre_webcam.jpg

convert pre_webcam.jpg -font Arial \ -pointsize 14 -fill white -annotate +670+590 \ $DATE \ -pointsize 14 -fill white -annotate +750+590 \ $HOUR \ -pointsize 14 -draw “gravity southwest \ fill white text 15,6 ‘Trento, 200 m s.l.m. - Raspberry Pi Cam by GeekSolution.it’ “ \ webcam.jpg

/usr/local/bin/send-ftp webcam.jpg done

  2. send-ftp:
  4. Code: [Select all](#)

!/bin/sh

TMP=’/tmp’ HOST=”ftp.mywebsite.it”

This is the FTP user that has access to the server.

USER=’myusername’

This is the password for the FTP user.

PASSWD=’mypassword’

It is the first argument passed to the script.

FILE=”$1”

cd $TMP ftp -n $HOST <<END_SCRIPT quote USER $USER quote PASS $PASSWD cd mywebsite/folder/ put $FILE quit END_SCRIPT exit 0 ```

MrPippoTN

Posts: 9

Joined: Wed Oct 02, 2013 5:54 am

Re: Adding date time stamp to a jpg picture

Tue Mar 04, 2014 9:27 am

As I wrote at the beginning of the topic, I’m a complete beginner. I don’t know anything in coding, I got some good advices that you can read here and then I studied imagemagick. Everything I did, I wrote it here.
There are links and code to copy. Please just try and eventually let me know.

Regards.

Aurion45

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