Team Iain, Jimmy, Tom and Lorenzo by TheGentlemanPadlet

Team Iain, Jimmy, Tom and Lorenzo by TheGentlemanPadlet https://padlet.com/mastermind0926/hq73v9dji4za Our group work en-us 2017-09-29 12:02:01 UTC 2025-10-03 07:37:13 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Pictureland.png Lossy Compression: 'In information technology, lossy compression or irreversible compression is the class of data encoding methods that uses inexact approximations and partial data discarding to represent the content. These techniques are used to reduce data size for storage, handling, and transmitting content.' ped152813901 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192381808
This means that the quality of the file is compromised when using lossy compression and can damage the contents of the file. ]]> 2017-09-29 09:54:25 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192381808 Here is a link to a video on the subject of lossless and lossy compression: mastermind0926 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192381990 http://www.bbc.co.uk/education/clips/zc2svcw]]> 2017-09-29 09:55:07 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192381990 Lossless Compression duf17001532 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192382192 Lossless compression reduces a file's size with no loss of quality. This can be applied to both audio and image files. Lossless compression basically rewrites the data of the original file in a more efficient way. However, because no quality is lost, the resulting files are typically much larger than image and audio files compressed with lossy compression. ]]> 2017-09-29 09:55:54 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192382192 'The re-encoding of data (usually the binary data used by computers) into a form that uses fewer bits of information than the original data. Compression is often used to speed the transmission of data such as text or visual images, or to minimize the memory resources needed to store such data.' ped152813901 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192382666
This means when you changed to a different file type that makes the file smaller you are losing some of the information.]]> 2017-09-29 09:57:35 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192382666 An interesting article on lossy and lossless compression By Tom Harris mastermind0926 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192382882

Lossy and Lossless Compression

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The type of compression we've been discussing here is called lossless compression, because it lets you recreate the original file exactly. All lossless compression is based on the idea of breaking a file into a "smaller" form for transmission or storage and then putting it back together on the other end so it can be used again.

Lossy compression works very differently. These programs simply eliminate "unnecessary" bits of information, tailoring the file so that it is smaller. This type of compression is used a lot for reducing the file size of bitmap pictures, which tend to be fairly bulky. To see how this works, let's consider how your computer might compress a scanned photograph.
http://computer.howstuffworks.com/file-compression3.htm

]]> 2017-09-29 09:58:24 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192382882 Vector Graphics Definition: They are a series of paths. These paths are defined by a start and an end point. T There are also other points, curves or angles too. Paths can be defined as shapes, such as squares and triangles, lines and curvy shapes. mastermind0926 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192412796 2017-09-29 12:25:26 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192412796 Drawing packages for vector: duf17001532 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192413296 Inkscape; https://inkscape.org/en/
Vectr; https://vectr.com/
Adobe Illustrator; http://www.adobe.com/uk/products/illustrator.html?sdid=KKQPG&mv=search&s_kwcid=AL!3085!3!198739849879!e!!!!adobe%20illustrator&ef_id=WbkQKQAAAFyfnnxO:20170929123219:s]]> 2017-09-29 12:27:06 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192413296 Vector grouping: You can group several objects or groups of objects to move, resize, reshape, and change their lines and materials.When you group objects on different layers, Corel PaintShop Pro automatically moves them to the layer of the first object you select. Each group is labeled on the Layers palette and the objects in the group are shown as components. aus16287860 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192413527 http://help.corel.com/paintshop-pro/v19/main/en/documentation/index.html#page/Corel_PaintShop_Pro/Grouping_vector_objects.html

]]> 2017-09-29 12:27:24 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192413527 Vectors are stored as numbers. ped152813901 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192414759 The file size is small because they don't take up as much memory in comparison to bitmap images because it stores the location of objects in the file.]]> 2017-09-29 12:30:48 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192414759 Bitmap/Raster File Size ped152813901 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192420240 The computer stores the details for each pixel such as its location and the colour it is using. This generally takes up a lot of storage in comparison to vector files.]]> 2017-09-29 12:46:47 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192420240 Outline and Fill: mastermind0926 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192423166 In many bitmap programs ,such as paint, you can create outlines of shapes and change the thickness and colour. As well as this you can create a fill effect that can be independent of the outline in colour.]]> 2017-09-29 12:51:38 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192423166 Bitmap software duf17001532 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192423247 Photoshop; http://www.adobe.com/uk/products/photoshop.html
CorelDRAW; https://www.coreldraw.com/en/
The GIMP; https://www.gimp.org/
PaintdotNet; http://www.paint.net.com
Microsoft paint; comes pre-installed in windows PC's]]> 2017-09-29 12:51:50 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192423247 Types of bitmap imagesBitmap images can contain any number of colors but there are four main categories:Line-art. These are images that only contain two colors, usually black and white. Sometimes these images are referred to as bitmaps because a computer has to use only 1 bit (on=black, off=white) to define each pixel. aus16287860 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192423485 Grayscale images, which contain various shades of gray as well as pure black and white.Typically 256 shades of gray (8-bit) are used even though the human visual system needs only 100 tints to perceive an image as life-like.
Multitones: such images contain shades of two or more colors. The most popular multitone images are duotones, which usually consist of black and a second spot color (often a Pantone color). The example below contains black and Pantone Warm Red.
Full-color images. The color information can be described using a number of color spaces: RGB, CMYK or Lab for instance.
https://www.prepressure.com/library/file-formats/bitmap-versus-vector]]> 2017-09-29 12:52:26 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192423485 Bitmaps are made from pixels. ped152813901 https://padlet.com/mastermind0926/hq73v9dji4za/wish/192423489 Each pixel is assigned to a coordinate and has a colour assigned to it, they can be created by using software such as paint, paint.net, etc. ]]> 2017-09-29 12:52:27 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/192423489 https://padlet.com/mastermind0926/hq73v9dji4za/wish/194571590 2017-10-06 07:16:15 UTC https://padlet.com/mastermind0926/hq73v9dji4za/wish/194571590