Task 2: Image File Types- Initial independent research

1.  Find out what these properties of image file types mean:
i.   Pixel dimension:  Pixel dimensions are the horizontal and vertical measurements of an image expressed in pixels.
ii.  Dpi resolution (Dots per inch): Dpi is used to measure the resolution both on screen and in print.
iii. Quality (of an image): Image quality is a charactertistic of an image that measures the perceived image degradation (usually compared to an ideal or perfect image).
iv.  Compression settings:

2.Find out what these are and what the differences between them are:
i.  Bitamp/Raster - Bitmap/Raster is a representation in which each item corresponds to one or more bits of information, especially the information used to control the display of a computer screen.
ii. Vector- a representation in which each item corresponds to one or more bits of information, especially the information used to control the display of a computer screen.
Raster images are made of pixels. A pixel is a single point or the smallest single component in a display device. Let's think of them as little tiny squares or dots of color or shade.
Vector images are mathematical calculations from one point to another that form geometrical shapes. 

For each file type answer the following questions.
3. What are these different file types?
A) What are they called? What does their names stand for (if anything)?
    1.tiff- Tagged Image File Format.
    2.jpg- Short version of.jpeg. Joint Photographic Experts Groups.
    3.png- Portable Network Graphics.
    4.bmp- Bitmap.
    5.gif- Graphics Interchange Format.
    6.pdf- Portable Document Format.
B) What are the benefits of the file type?
    1.tiff- One of the benefits is that it's a flexible format that can       represent everything everything from fax images to photos compressed/uncompressed as a bitmap.
    2.jpg- .jpg files can be opened and viewed in almost all viewing  applications. It is also compatible with all printers, allowing users to print .jpg files directly from the viewing applivatons without having to change its format.
    3.png- It utilizes lossless copmression meaning no image data is lost when saving or viewing the image.
    4.bmp- Bitmaps are fairly simple to output, as long as your printer has sufficient memory. 
    5.gif- GIFs allow single-bit transparency, which means when you are creating your image, you can specify one colour to be transparent. 
    6.pdf- They can be retrieved, viewed and printed using Adobe Acrobat Reader.
C) When is it mostly used? (in which programs/situations)
    1.tiff- When you want to print a .jpeg at its highest quality.
    2.jpg- JPEG is best used for photographic images that have more variation in colours, shades and tones.
    3.png-  
              

 
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