Monday 26 November 2012

Image capture, image output and storage of image assets

File Extentions

When saving images, only certain file types will be able to be seen on digital devices. For example, Apple devices do not support Flash, so any .fla flies wont function on Apple devices, which may a problem if a site runs on flash. Another example is if you have to edit or open a .psd file on a computer which doesn't have Photoshop installed: you won't be able to open the file, which  may cause some problems. The best way to avoid this would be to save the image as a more common file type, such as .jpg, .bmp or .png. 

.bmp
.bmp, or Bitmap, is a common image file format and is compatable with most computers. It is a raster type format, so that means that it retains it's sharpness when 'blown up'

.png
.png, or Portable Network Graphic, is a file type which is not as common as the other file types, as it is not as widely used. You may need to install a programme to open and edit these files, as the programmes pre-installed will not open these files. One common factor about .png files is that they have a transparent background (a grey and white blocked background), so they are more commonly used in the industry for media.

.gif
.gif, or Graphics Interchange Format, is a file format which lets you show a small animation from either a video clip or an animation. .gifs are mainly used for online purposes, but they have a limited colour palette so they may not be suitable for some professional companies.

.tiff
.tiff, or Tagged Image File Format, is a file extention mainly used by professionals, photographers and graphic artists, but can be opened on most computers.

.jpg
.jpg is probably the most common image file type, as you can open and edit these file types on any computer. .jpg's aren't widelt used in the media industry as such, as when you 'blow up' jpg's, you can see the pixels more clearly, so it looks blurred.

.psd
.psd, or Photoshop Document, is a file type which can only be opened in Adobe Photoshop. This is because the file will contain all the layers of the image, which can only be edited in Photoshop. this type of file format will be more commonly used in the industry due to its relation with Photoshop and its large pixel count.


Image Capture

To 'capture' an image means to take a recording of it, so that you may view it later. You can do this by using a variety of different recording media:

Scanner

A scanner can be connected up to a computer or laptop, so that you can scan an image in. Usually, the image will be on a  piece of A4 paper, as the maximum size most scanners can scan in is A4. After you have scanned the file, you will have a digital copy of the image or document, so that you can edit it digitally.

Digital camera
A digital camera allows you to take pictures of a current scene, such as a event or a group of people. After you have taken the picture, the image is stored on the SD card inside the camera, which can be removed and put into a computer, so that you can edit the files if you so wish.


Nikon D60 Digital SLR Camera 


Tablet

A tablet is a device which you can plug into either your computer or laptop, and then draw images on the tablet screen and they will appear on screen. Tablet's are mainly used by artists, as this is a easy way to 'draw into' a digital device. Tablet's are available with screens on them, so that you can see more easily what you are drawing, rather than looking at the screen whilst you are drawing on another surface. These type's of tablet's may be more commonly referred to as "Graphics tablet's", as tablets can also mean "Tablet computers".


Wacom InTuos4 Graphics/Drawing tablet

Image Output
Image output means any device or object in which you can display an image that has, usually, been produced digitally, or traditionally. 

Print mediaComputer/Laptop
You will be able to view images, such as drawings and promotional material, on a laptop or
Most work that is viewed on these types of devices can be altered in programmes such as Photoshop, or Paint
. Computers/Laptops are used to display media which is usually only going to be seen by a few people, so it would not be ideal to use to show a large number of people information on a screen.



MacBook with images of CD artwork onscreen.
Projection
You can also project images onto surfaces using projectors. This will allow you to show media to an audience easily, but you may be unable to edit the media on-screen if you are using an older projector. Projectors are usually used when showing presentations to a large audience, either educational or for entertainment.
Modern art being shown using a projector
Printed media
Printed media can apply to a range of physical media, such as advertisements in magazines, posters or billboard advertisements. You will typically see advertisements in gaming magazines for new games, as this is their target audience. You will only typically see games advertised on Billboards if they have a large following, such as the Batman video game franchise, as they will more likely profit from this advertisement when compared to a game with a smaller following, such as the Silent Hill video game series. However, this could be seen as a way of appealing to a target audience, or if the company can afford to have these placements. 

Billboard advertisement for Assassin's Creed III

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