SESSION 19: Image formats, storing, publishing and sharing
PART 1: IMAGE FORMATS.
ACTIVITY.
a) Find out the most common formats for images and write a short description of the features of each of them
JPEG:
JPEG is short for Joint Photographic Experts Group, and is the most popular among the image formats used on the web. JPEG files are very ‘lossy’, meaning so much information is lost from the original image when you save it in a JPEG file.This is because JPEG discards most of the information to keep the image file size small; which means some degree of quality is also lost.
GIF
GIF, short for Graphics Interchange Format, is limited to the 8 bit palette with only 256 colors. GIF is still a popular image format on the internet because image size is relatively small compared to other image compression types. GIF is most suitable for graphics, diagrams, cartoons and logos with relatively few colors. GIF is still the chosen format for animation effects.
BMP
The Windows Bitmap or BMP files are image files within the Microsoft Windows operating system. In fact, it was at one point one of the few image formats. These files are large and uncompressed, but the images are rich in color, high in quality, simple and compatible in all Windows OS and programs. BMP files are also called raster or paint images. BMP files are made of millions and millions of dots called ‘pixels,’ with different colors and arrangements to come up with an image or pattern.
TIFF
TIFF was created by Aldus for ‘desktop publishing’, and by 2009 it was transferred to the control of Adobe Systems. TIFF is popular among common users, but has gained recognition in the graphic design, publishing and photography industry. It is also popular among Apple users.
PNG
PNG or (Portable Network Graphics) is a recently introduced format, so not everyone is familiar with it. But PNG has been approved as a standard since 1996. It is an image format specifically designed for the web. PNG is, in all aspects, the superior version of the GIF. Just like the GIF format, the PNG is saved with 256 colors maximum but it saves the color information more efficiently. It also supports an 8 bit transparency.
b) Wich image format preserves the quality better when it's compressed?
The JPEG format.
c) Wich formats are better for web desing?
The GIF format.
PART 2: ORGANIZING IMAGES
ACTIVITY:
1. Find pictures of the school in the internet and create a slideshow (album) with them using FLICKR. Then upload it to your blog.
Great job!
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