Digital Guyana

Week 4 – Image editing

Posted on: August 10, 2009

This morning workshop was split into two parts. The first part looked at finding and downloading images; the second editing and improving the images with the open source image editing programme GIMP.

We started with a quick exercise using a Google Image search to illustrate how easy it is to search and download all kinds of images from the web. I then explained that it’s not really sensible to take images from other people’s websites willy nilly. This is still a bit of a legal grey area but it is technically a civil infringement to take someone’s images from their website without asking their permission. (Useful links on the subject: http://forums.digitalpoint.com and http://answers.yahoo.com)

So, the only way to be sure you’re not being naughty is to A) use your own images or B) downloads images from a free image library – of which there are many. I then asked the students to search and download an image of their choice from one of these libraries.

In the second part of the workshop we looked at image editing. Photoshop is the obvious brand leader in this field but because we wanted to foster skill sharing in the most sustainable way possible we choose to go for a free alternative to Photoshop, of which there are many. We chose GIMP because it has a similar interface to Photoshop, is quick and easy to download and is relatively easy to use.

To save time we had already downloaded it but shared the link for downloading GIMP in case our groups wanted to download it onto their own computers. We also directed their attention to the GIMP user manual, explaining that, although it is very long, it contains simple instructions to all aspects of the programme.

After opening up the programme we demonstrated the two main windows: the toolbox and the image window. We then opened an image up in GIMP and demonstrated tools including the move tool, crop tool, scale image and zoom.

We then underlined the importance of Undo (Ctrl+Z) in using such a programme and explained how pixels work before getting our groups to resize their images to a specific size using two methods. The first method used the crop tool (remembering to adjust the ratio of the crop by clicking on fixed aspect ratio and entering the required pixel dimensions). The second way saw us creating a new window of the required pixel size and copying and pasting the image into it before resizing it with the scale tool, not forgetting to select ‘Keep aspect’ – or hold ctrl – to keep the dimensions of the image.

We then asked our groups to insert their resized images into their HTML CVs and their WordPress blogs as a new picture post.

After demonstrating how to flip and rotate images we looked at enhacing pictures using the Colour Tools.

Advertisements

2 Responses to "Week 4 – Image editing"

Interesting post. As you say it’s best to use images from free image libraries. I use StockXCHANG.

Very nice write-up. I absolutely love this site.
Stick with it!

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: