• Dave Foord
  • Enter your email address to subscribe to this blog and receive notifications of new posts by email.

    Join 1,624 other followers

  • Dave Foords Twitter

  • Advertisements

Using PowerPoint to manipulate images: Creating soft edges

This is the second tutorial in a series on ‘Using PowerPoint to manipulate images’. For people like me that doesn’t own nor has the graphical skills to use the high end graphics packages, PowerPoint is my primary image editing tool, even if the end location of the image is going to be somewhere else (Word, Excel, VLE etc.)

A lot of people when adding images to resources will find an image, and chuck it in without thinking about how the image looks, what size it is, what other images are visible alongside it etc. If I am using an image as a ‘decorative’ element designed to break up the text and to act as a ‘memory hook’ for the learner, then one technique that I sometimes use is to change the image to have soft edges. This (as the name suggests) softens its appearance, so it blends into the ‘page’ rather than having the harsh sharp edge that makes it stand out. If someone is going to be spending a lot of time viewing a particular screen, having soft edges can be easier on the eye than the harsh edge of a bordered image.

Here is an example of an image that I have used in a PowerPoint presentation:


Image of 2 carnival goes wearing skeleton masks and hats. The image is rectangular with a hard border.

Here is the same image that has been turned into an oval and had the edges softened (annoyingly the theme that I use for this blog, puts a grey border around the image that I don’t want!):

Image of 2 carnival goes wearing skeleton masks and hats. The image has soft edges and no border.
The following video shows how easy this is to achieve, note – it is possible to edit multiple images at the same time – if you hold a finger on the ctrl key whilst clicking on the images you can multiple select those images, and then any changes that you make is applied to them all consistently.

Advertisements

Using PowerPoint to manipulate images: Circling a rectangle

I use images a lot in my work when creating learning resources, and that often requires various forms of editing and manipulating images. I don’t have access to the high end image editing software nor do I have the skill to use them, but I do have access to PowerPoint which can be a very effective tool for basic image manipulation.
In this example I will show how a rectangular image can be converted into a circular image. There a couple of reasons why you may want to do this;

  • It takes up less space on the resource, allowing more space for the other items around it.
  • It can be easier on the eye having circular images that have no corners compared to squares and rectangles with their hard corners.

This video goes through the steps to do this:

Free medical image repository – Wellcome Images

I have recently been working on a project for a University developing some midwifery resources related to breast feeding, which was very interesting but we did find problems locating appropriate Creative Commons images to use in the resources, even using my usual locations such as Xpert, Wikimedia, and CC Search.

Ironically it was whilst working on a completely different project that I stumbled across a service called Wellcome Images which is a source of free Creative Commons images which their website describes as:

“Wellcome Images is one of the world’s richest and most unique collections, with themes ranging from medical and social history to contemporary healthcare and biomedical science.”

There are a few conditions of use regarding the images, but basically it is free for educational use as per point 5 of the “How do I” section of their site.

“…reproduction in teaching materials created in any medium by a teacher or lecturer at an educational establishment for the purposes of teaching. This includes making printed copies of such materials for students and promoting and making such teaching materials available in electronic form , for example, via a virtual learning environment….”

There are some excellent images within here, and many are non-medicine related (there are lots of sport images for example), and what I really like are the old classical images, which I find really useful when creating learning resources, or PowerPoint presentations.

Why educators should use creative commons images?

I have regularly blogged about different tools to locate creative commons images, however I thought it would be useful for me to go into more information about ‘why’ we should use these – and not just from the logical response of staying on the right side of copyright law.

To start with, we need to understand what Creative Commons is. The following YouTube video explains this quite clearly. This is a New Zealand based video but the principle is the same in the UK and elsewhere.

Now onto the question of  why? I will be talking about this in an event next week, for which I have created an audio and an associated transcript (pdf) below.

Why it is important that educators use CC images (audio)

Why it is important that educators use CC images (transcript)

So – as well as the legal reason for using Creative Commons images, there is also the moral and educational reason – in that we need to prepare our current learners not just for their current studies, but also for the workplace beyond.

I was running some training at a primary school, where I introduced them to the idea of the Xpert attribution tool, and how this attaches the reference to the image, and if we get primary school children used to seeing correct referencing of images, when they get to secondary and FE/HE levels, they will be more familiar with this notion.

How to locate images on Wikimedia and embed into Moodle or Blackboard

There are lots of people that work in education that sadly think that Wikipedia is the work of the devil, and think that it will undermine academia as we know it, and should be banned at all costs. There are others that think Wikipedia is a wonderful source of information, and there is no point of looking elsewhere for facts.

Regardless of your viewpoint on Wikipedia (which hopefully is somewhere between the 2 extremes above), one aspect of it that is very useful, is that there is lots of high quality media (mainly images, but also videos and audio) available on Wikimedia – that can be easily (and legally) embedded into a VLE like Moodle or Blackboard.

As organisations scramble to set up online courses, the reality is that most people won’t have the time or money to generate their own high quality media – and I don’t think we need to, seeing as there is so much media out there that we can easily and legally use – the key is the academic structuring of this information and the asking of challenging and stimulating questions around this available media and information. e.g. the image below identifying a muscle in the human body – I couldn’t draw this myself, and it would be a waste of my time trying to.
Musculi coli sternocleidomastoideus

The video below shows how easy it is to find an image on wikimedia and embed it into a VLE like Moodle or Blackboard

Using Creative Commons Search to find images on Flickr and embed into a VLE

I have blogged many times in the past (see bottom of post for links) about different ways to locate and use Creative Commons images (e.g. ones that can be used without breaking copyright). My favourite 2 sources of images are currently Xpert and Wikimedia but if I don’t find what I want there, then here is another useful technique.

The website http://search.creativecommons.org/ is another very useful tool that will allow you to search different sources of media (including images, video, audio) with one of the search options being for the image sharing website Flickr.

In the past I have used a site called CompFight to achieve this, but with compfight the default settings are such that you have to tick to choose that you want creative commons, and if you want the commercial option, then you have to tick that as well, so there is a real possibility that someone could forget to tick these options, and end up with an image that isn’t Creative Commons. With the creative commons search tool, it ticks these 2 options as default, so when I am showing this technique to staff, I am now using this site for that reason.

Here is a video showing how we can use the tool to locate an image and then embed it into a VLE such as Moodle or Blackboard, or any other webspace that you can edit.

I regularly run training for organisations, in topics like this, including different ways of using the images once they have been located. For details of training please contact Dave Foord via http://www.a6training.co.uk/contact.php


Links to other posts in this blog on this topic.

Using Compfight to locate creative commons images

Compfight is an excellent little website, for locating images on flickr that have been released under a creative commons licence which means that we can use the images in resources etc, without having to gain explicit permission from the image owner.

I have posted about Compfight before at https://davefoord.wordpress.com/2010/05/18/finding-and-using-creative-commons-images/ and https://davefoord.wordpress.com/2011/01/11/finding-images-without-breaking-copyright/  but the interface has changed slightly, so I thought it was time to create a new screencast for this service.

Having located and used an image this way, I then use another service called ImageStamper which then records which images I have used and when, and most importantly what the licence agreement was at the time (in case someone on Flickr changes their licence agreement at a later date).