Art and ICT: Connections and possibilities

The computer provides a safe space for the drafting of ideas, visual as well as written. There are certain limitations on this: a mouse is not a good drawing tool, computer screens/printouts have limitations of size, resolution, colour. Nevertheless, if the art activity is appropriate for the ICT medium, it can allow all kinds of new creativity.

 

Computer-appropriate projects

 

Using software to design:

 

Transformations of existing visual material:

 

¾all these can be

 

Specific software

 

Children’s Software

 

 

Picture file-types

 

Pictures are stored on computers in many different forms, and although it may seem a bit technical it’s as well to know a little about them:

 

Pixel Pictures. Pictures made up of dots (pixels) are very common. Often called Bitmaps (because each ‘bit’ of the picture is ‘mapped’ to a different colour.) When you enlarge one of these pictures too much it breaks down into a pattern of dots, or pixels.

 

On PCs, each file has a suffix, a group of letters after the name which tells the computer what sort of file it is.

Windows bitmap files                            picture.bmp

 

Vector drawings. These pictures are made of lines which the computer ‘colours in’ each time they are drawn. When you enlarge these pictures they retain their integrity. Acorn: Draw files. Publisher clip art is mostly wmf files.

Windows Metafiles                                picture.wmf

Windows enhanced metafiles              picture.emf

 

Compressed pictures. If a picture file is too large it may take hours to get from one computer to another down the narrow ‘pipe’ of your phone line. Pictures of the previous types can be compressed to a very much smaller size, making them much easier to move from one machine to another, or over the Internet. The file is squashed/compressed before sending or storing, and then reconstituted by your graphic software to its full size.

 

JPEG Files                                        picture.jpg

These are highly compressed pictures and have become the most common format on the Internet. They are supported by Acorn, PC and Apple and can be moved seamlessly between platforms. They can be opened using Internet Explorer or Netscape, and will be accepted by all recent word-processors and DTP programs. They do, however, lose quite a bit of fine detail in the process, so should not be used for images which are going to be professionally or photographically printed.

 

TIFF Files                                           picture.tif

‘Tagged Image Format’ files are also common on the Internet. They are not compressed like JPEG files.

 

GIF Files                                            picture.gif

‘Graphic Image Format’ files originally patented by Compuserve. Compresses the information by assigning each colour a specific number. A little picture with very few colours will therefore create a very small file.

 

EPS Files                                          picture.eps

Encapsulated Postscript files are used to transfer accurate font information within a graphic, and are handled by programs such as Pagemaker.