Friday, 16 May 2014

Video Formatting

1) Exporting Your Film From ADOBE PP6

a)How do you export ? 

   Step 1) Before exporting check all video to be exported is rendered (that the top bar is all green)
   Step 2) Make sure there isn't:
               -any extra bits you don't want on your time line
               Make sure that:
               -Everything works
   Step 3) Ready to export
                -File-media
                -export Media

b)Where do you export ?

 Click format, choose a file type
Once its finished loading, you can then click export














c)How do you name your file ? Why is this important ?

  When naming your file it should be your group or your name first something about the clip and which version it is. This is important so when you come to putting it all the clips together it is easy to find them so you don't waste time going through them and if you lose it its easier to find it because if everybody named the the same then it would take a little longer to find it.

d)What are the different formats ? mp4, mov,avi, wmmv, flv-explain, discussing file size, resolution/quality and purpose-where will it be used and why is that important ?

mp4- Is a multimedia container format standard specified as a part of MPEG-4. It is most-commonly used to store digital audio and digital video streams, especially those defined by MPEG, but also can be used to store other data such as subtitles and still images. Like most modern container formats, MPEG-4 Part 14 allows streaming over the Internet.
 HD TV has used MP4 to broadcast its signals in order to make the transmissions easier and relatively inexpensive.

mov- MOV video file is a common multimedia format often used for saving movies and other video files, using a proprietary compression algorithm developed by Apple Computer, compatible with both Macintosh and Windows platforms. The format specifies a multimedia container file that contains one or more tracks, each of which stores a particular type of data: audio, video, effects, or text (e.g. for subtitles).
MOVQuickTime Movie (file extension)
MOVMeasurable Organisational Value


avi- Audio Video Interleaved (also Audio Video Interleave), known by its initials AVI, is a multimedia container format introduced by Microsoft in November 1992 as part of its Video for Windows technology. AVI files can contain both audio and video data in a file container that allows synchronous audio-with-video playback. Like the DVD video format, AVI files support multiple streaming audio and video, although these features are seldom used.
Video content in AVI boasts better quality. This can be proven by viewing AVI files using most digital video players. 

wmv-Windows Media Video (WMV) is a compressed video compression format for several proprietary codes developed by Microsoft. The original video format, known as WMV, was originally designed for Internet streaming applications. The other formats, such as WMV Screen and WMV Image, cater for specialised content. Through standardisation from the Society of Motion Picture and Television Engineers(SMPTE), WMV 9 has gained adoption for physical-delivery formats such as HD DVD and Blu-ray Disc. m

flv- FLV is flash video, it is a format that is design for web playback, offering high rates of compression yet ensuring the quality.
Specifically, the video stream included can be a variant of the H.263 standard or the much more advanced On2VP6 codex. Video from YouTube or Metacafe use a simplified H.263, commonly refereed to as FLV1 and FLV4 (YouTube uses both, depending on what video it is, Metacafe and others use FLV4).

 

2) Converting And Clipping Your Video Using MPEG Streamclip


a)How do you import you film ?
   Step 1) File then Import to e.g Avi

b)Which formats can you choose-why is this important ?
    You can choose a range of different ones e.g Avi and its important because if you choose the wrong one, it may not be the format you need for the use you need it for.

c)How do you name your files and why is this important ?

  When naming your file it should be your group or your name first something about the clip and which version it is. This is important so when you come to putting it all the clips together it is easy to find them so you don't waste time going through them and if you lose it its easier to find it because if everybody named the the same then it would take a little longer to find it.

d)Why is converting useful ?
    Converting files from one type to another is important so that the file can be from one type to another is important so that the file can be used by different types of programs. For example you could pull video off off a DVD but iTunes wouldn't be able to play that video unless it was encoded in the correct file type.

e)Why is clipping useful
    Clipping is useful because you can select a scene and show just that scene.

3) Uploading Video To Youtube

a)What is the account name/username and password-where do you find this information ?

   A username is a name that uniquely identifies someone on a computer system. For example, a computer may be setup with multiple accounts, with different usernames for each account. A username is almost always paired with a password. This username/password combination is referred to as a login, and is often required for users to log in to websites. For example, to access your e-mail via the Web, you are required to enter your username and password. Once you have logged in, your username may appear on the screen, but your password is kept secret.

  A password is a string of characters used for authenticating a user on a computer system. For example, you may have an account on your computer that requires you to log in. Most passwords are comprised of several characters, which can typically include letters, numbers, and most symbols, but not spaces.

b)How do you name and tag/label you video (for searching) ?
    Once you have chosen to upload it, you have the option to tag it. Tags can narrow the search for what you are looking for.

c)How do you annote a video ?
   Once you have uploaded the video, you can edit it in Video Manger and you can annote it and you can say whatever you want.

4) Export sizes:

--mp4-53.7 MB
--mov-116.9 MB
--avi-303.7 MB
--flv-119.6 MB


  

Friday, 22 November 2013

Task 2-Image File Types:

1. Find out what these propeties of image file types mean:

Pixel  Dimensions- Pixel Dimensions are the number of pixels wide and the number of pixels tall of a sensor. They are multiplied to find the total number of pixels on a sensor. 

Dpi Resolution (Dots per inch)- Dots per inch (DPI) is a measure of a printing or video dot density, in particular the number of individual dots that can be placed in a line within the span of 1 inch (2.54 cm).

Quality(of an image)-Image quality in a photograph or on a monitor we may look at sharpness or resolution, good contrast, correctness of color, gradation from black to white with what is sometimes called "long scale,"

Comression Settings-  The reduction of the volume or mass of something by applying pressure, or the state of having been treated in this way. 

2. Find out what these are and what the differences between them are:

Bitmap/Raster-Bitmap graphics are made up of pixels of different colours.

Vector-Vector graphics are made up of objects.

The Differences are: A vector image uses geometrical formulas to represent images. The other way of representing graphical images is through bit-maps in which the image is made up of a pattern of dots (note that bit-maps are often referred to as raster graphics). Programs that allow you to create and manipulate vector graphics are called draw programs and programs that manipulate bit-map images are called paint programs.Vector graphics are more flexible than bit-maps because they can be easily re-sized. In addition, images stored as vectors look better when displayed on high resolution printers and monitors. Bit-map images look the same, regardless of the resolution of the display. Another advantage of a vector graphic is that they often require less memory than bit-maps do.

3.

.tiff--TIFF stands for Tagged Image File Format. Files with the .tiff extension contain graphics containers that store vector and raster images in both lossless and lossy compression formats. The TIFF file format supports any image resolution and black and white, gray-scale and color images. The TIFF file format was created as a standard image format to save high-quality images that could be used across multiple computer platforms. The .tiff file extension is interchangeable with the .tif file extension.

.jpg-- JPG files, also known as JPEG files, are a common file format for digital photos and other digital graphics. When JPG files are saved, they use "lossy" compression, meaning image quality is lost as file size decreases. JPEG stands for Joint Photographic Experts Group, the committee that created the file type.JPG files are commonly referred to as JPEG images. JPEG is the acronym for Joint Photographic Experts Group. Many bitmap images are saved in .jpg format in order to compress the files. This makes it easier to transfer or download the files and use them on the Web. The JPG file format is based on a 24-bit color palette, however, these files tend to drop information when they are decompressed. The higher the rate of compression was when the JPG file was created, the more the quality of the image will be affected when the file is decompressed.

.png--PNG is an acronym for Portable Network Graphic. The PNG file format offers a compressed lossless file format for graphic bitmap images. PNG files are very similar to GIF files. They contain bitmaps and offer a lossless compression algorithm but they do not contain copyright limitations. Unlike GIF files, which can only provide for fully transparent or fully opaque pixels, PNG files provide for 8-bit transparency. While PNG files cannot be animated like GIF files can, the MNG file format (a file format related to PNG) does offer animation capabilities. PNG is becoming the preferred image format for graphics on the Web. 

.bmp--Short for "Bitmap.  The BMP format is a commonly used raster graphic format for saving image files.The BMP format stores color data for each pixel in the image without any compression. For example, a 10x10 pixel BMP image will include color data for 100 pixels. This method of storing image information allows for crisp, high-quality graphics, but also produces large file sizes. The JPEG and GIF formats are also bitmaps, but use image compression algorithms that can significantly decrease their file size. For this reason, JPEG and GIF images are used on the Web, while BMP images are often used for printable images.

.gif--GIF files are image files that can be created by a number of different graphics applications. Files with the .gif file extension can contain up to 256 colors. GIF files are often used in web graphics and are commonly used to create graphic text for websites. While the pixels in a GIF file can be transparent, they must either be fully transparent or fully opaque when creating or editing the image. They cannot be alpha-blended, like with e.g. PNG images. GIF files are also commonly used for website animations since the images within a GIF file can be animated. 

.pdf--PDF stands for portable document format. This universal file format was created by Adobe Systems in 1993. PDF files are able to preserve the formats, fonts, drawings and other file components of virtually any electronic document file and present it in a universal format.PDF files are cross-platform files, which means they are able to be read on both Mac and Windows operating systems, as well as the new Android platform found in many of today's cell phones. Many of today's eBook publishers use PDF format for publishing. PDF files are also used by businesses and individuals to distribute documents and literature.