Technology

sepdek August 8, 2014

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 […]

sepdek May 15, 2014

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 […]

sepdek March 14, 2014

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]; […]

sepdek March 14, 2014

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 […]

sepdek February 10, 2014

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 […]

sepdek December 3, 2013

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). […]

sepdek November 21, 2013

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 […]

sepdek November 10, 2013

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 […]

sepdek April 27, 2013

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 […]

sepdek March 16, 2013

Setting up and testing OpenCV in MacOS – tested on Mountain Lion v. 10.8.3 (*) based on the blog notes of Tilo Mitra Installation: Download the latest version of OpenCV from SourceForge: http://sourceforge.net/projects/opencvlibrary/files/latest/download and unzip it. A folder is extracted with various files and folders Download cmake which is required in order to build and […]

sepdek January 18, 2013

Many different search options in google mail…I have to start writing them down ’cause I will definitely forget some of them… label:[LABEL] (abbr. l:[LABEL]) search for messages with a specified label. It can be extremely useful when searching for unread messages with the simple syntax: l:^u in:[SYSTEM-LABEL] search for messages in a specified gmail system […]

sepdek November 28, 2012

Some years ago I got my macbook air and in a flash of genius I got a 200GB USB disk to use as a backup disk (time machine backup disk). This was great and there where a couple of times it prooved really useful. Recently I wanted to detach this USB disk from its primary […]