@sepdek's

A newly developed remote monitoring app for Android devices has been published on the Google Play store. The application is a miniaturised version, which provides just a few remote measurements served by a data server. The application is heavily based upon the work of Maria Pappou and Christos Zaptses, which have originally developed an arduino-android […]

Since the Yosemite update a few days back, I decided to give Mac Mail another chance. One really annoying thing that I had to face right from the beginning was the lack of a keyboard shortcut for a “must” option to “Erase Deleted Items” “In All Accounts…” (quoting the menu options). There is an incredibly […]

I have recently finished developing a simple eHealth project that includes a health sensor kit and an iOS 8 app published through the App Store (*currently my developer account is suspended due to the capital controls in Greece). The project is called ‘i-Health’ for all the known reasons. The application offers a live medical monitoring […]

The only way that I found to delete multiple photos from the iPhone (iOS 7) without having to select them one-by-one or, at best, ‘Moment’-wise, was to use Preview on my mac! Preview has a magical option in the ‘File’ menu which is called ‘Import from iPhone…‘. This option opens a window showing all photos […]

It has been many years working on digitization, reconstruction and virtual world applications; tested and used various techniques covering almost all aspects in the digital recording workflow. In the recent past years our team has been successfully engaged in a very productive workflow regarding digitization and reconstruction in 3D. Specifically, this workflow involved the application […]

A straightforward approach to do geometric image transformations using MATLAB is to take advantage of the imtransform function available. First the image is supposed to be within a ‘unity’ rectangle and initial transformation conditions are defined accordingly: udata = [0 1]; vdata = [0 1]; fill_color = 128; org_rect = [0 0;1 0;1 1;0 1]; […]

I have already kept a note on the procedures needed to cancel a pre-approved or automated PayPal payment in a post regarding Skype but this is a more general problem and I need to remember… Walk through the menus as follows: My account > Profile > My Money > My preapproved payments > Update Here […]

In a recently posted question @StackOverflow a user asked how to find the maximum Euclidean distance in a binary image produced by Canny edge detection using MATLAB. The original post is here. I report my response here just for archival purposes. Provided that you have a binary edge image, you need to think of white […]

Quite often I have to read texts, papers and theses of students in order to review them and make corrections and suggestions. In many such cases I face the problem of texts with unequal word spacing and huge white-space areas that really looks bad. See the following image for an example (text taken from Wikipedia.org). […]

I found a workaround to enable (a 50%) focus-follows-mouse functionality on MAC OS X Mavericks after reading pages and pages and testing various snippets and techniques that failed. The thing is I always use focus-follows-mouse on all platforms including Windows (recently found a way for Windows 8). The only thing that worked (50% what I […]

There was the time of the PowerToys…back in the Windows XP era…So we had the option to easily change system setting without having to get our hands dirty digging into the registry. Nowadays there is no such utility so we have to do thing on our own. What I am particularly interested in is the […]

When something that should be obvious is not so obvious after all. Recently I heard a lot of people complaining getting charged for Skype calls to a UK number +44870835190. Skype people respond to such queries with answers like: Please get in touch with Skype Customer Service. This FAQ should be helpful: https://support.skype.com/en/faq/FA10384/ Check last […]