Tuesday, January 16, 2018

The Disintegration of Google Photos and the Broken Google Backup and Sync App

We rely on Google for a lot of things every day which we take for granted, from search, to email, YouTube, online document collaboration and sharing, blogs, custom cloud applications, voice services, apps, domain names, photo management, file backup and syncing, and the list goes on. It is regarding those last two that this post will address. I want to be positive and hopeful about the future of Google Photos/Backup and Sync/Google Drive, but after using these services to backup my family photo library for over a decade, I'm recently starting to have real concerns about the reliability of the service.

Tuesday, January 09, 2018

Modifying EXIF Image Metadata using ExifTool

Sometimes it is necessary to change the EXIF metadata of an image file. For example, in the old days, everyone is familiar with the confusion that results when taking pictures on an older digital camera that just had new batteries put into it, and the date was never set. All the photos show up with a date that is totally inaccurate.

When you have a bunch of photos that have inaccurate dates, it makes your photo library disorganized and confusing, especially when you're trying to search for images from a certain date. Google Photos, for example, uses the EXIF metadata of your uploaded images to organize your photos.

I’ve found that Phil Harvey’s ExifTool, while daunting and somewhat tedious, does exactly what I need it to do to modify EXIF metadata on images.

To change the metadata date on a file using ExifTool, use the following command:

  exiftool "-filemodifydate=YYYY:MM:DD HH:MM:SS" file.jpg

If the EXIF data in the file doesn't respond to the above command, you may need to first enter the following two commands to fix the metadata:

  exiftool "-alldates=YYYY:MM:DD HH:MM:SS" file.jpg
  exiftool "-filemodifydate=YYYY:MM:DD HH:MM:SS" file.jpg

You can also use wildcard characters to apply these operations to multiple files matching the criteria you enter, for example IMG_44* would apply the operation to all files beginning with "IMG_44". And, if you get stuck and need help, the author, and the great community over at the ExifTool forum are super helpful and friendly.

Saturday, December 23, 2017

Finding the Center of a Circle

My son and I were having a conversation about how to find the center of a circle (he's my little aspiring engineer/hacker). While there are many ways to find the center of a circle, this is the one I remembered from high school:
It involves drawing two right triangles inside the circle. Where the hypotenuses intersect is the center of the circle. What is your favorite method of finding the center of a circle?

Guess the Sound | Episode 13