Hello I am a games developer from Tudno Studios and this article is aimed to show and give a understanding of what digital graphics is and what its uses are in the games industry and in the industry itself. This article will cover the applications of interactive media graphics and the way it is used within the industry, the pixels and raster images and also the Vector images. The article will also include the bit depth of digital graphics and the colour space within the images and videos, the Image capture and finally the Image Optimisation and why the best detail but the lowest memory usage is the best for digital graphics.
Evaluation
Digital graphics is used in the industry by applications for interactive media such as roll over buttons which are used by websites in order to give a interactive feel with a button and to also allow a better appeal to the websites. http://www.youtube.com/watch?v=Q5ajsjUyqTQ this is a good example of how to create a rollover button
Other uses in digital graphics is the character design of the characters from a game, film or comic book. this allows a very detailed idea of the character before it is actually made in the game, movie or comic. This helps give a idea of the look of the character and also the possibilities of creating a character. http://www.eyesontutorials.com/articles/328/1/Digital-character-design-and-painting/Page1.html
This picture shows a character been created using digital media which helps give a idea of what it would look like on the computer games and the look of it when on a display is been used on such as a case or cover.
Slide show images are used in the applications to allow a user of animation or as a way of explaining a story in pictures.doing this allows a better visual to the viewer of the movie or reader as it helps get a idea of the background behind the issue or story. slide show images allow a better understanding than a lot of writing on a page as it helps the reader get a easier view as what is trying to be said. http://www.youtube.com/watch?v=tB5ENUaJVZ8
This video is showing a story someone created using only images so that way the viewer can see the idea of the story without using text to give a idea as there is more than one visual way of learning a story.
Product images are made in the applications of graphics by multiple images and text allowing the use of creating adverts with the newly created images. Doing this allows the user to create adverts and posters with many images and text with little effort or complications in order to give maximum effect. Doing this allows a better display of items in a store or a display of events with easier knowledge than a lot of typing and editing backgrounds to allow the reader to view the content on the poster or image. http://www.bmsoftware.co.uk/boxes/greenstreetdigitalbabybook.jpg
This Picture shows a advertisement for a book and as it displays a lot of layers of pictures with a main layer on the top to show a better understanding of what the book is about. The book also displays a very clear title and the content is shown very clearly with a lower sub title with text as people do not like to read a lot of writing all at once. Doing this on a product image allows the the viewers to look at it due to its colourful appearances it gives the reader attention and curiosity to look at the book.
The use of digital graphics involves the use of pixels in the application and this involves images such as the Raster image using bitmaps and other applications in order to save a huge amount of file sizemakes a difference to the detail of the image.http://www.thegeekmedia.com/wp-content/uploads/2010/05/Mario.jpg
This is a example of a Jpeg image as it is very detailed and the pixels are very close and extremely detailed.
This is a example of a Bitmap image as it shows the detail in more cartoon base and not very detailed with pixels compared to a Jpeg image. This is shown by its 2D look and the detail on the character compared to the 3D look.
Vector images are images created using coordinates and lines in order to create a more appealing image. this is created in a more mathematical term and allows the user to see the backbone of the image produced. http://bucarotechelp.com/design/graphics/images/inkscape01.jpg
As this picture shows it uses the lines from the larger image in order to show the detail of the car in lines and the vectors it is used to produce those lines. This involves a very complicated way at looking at a picture but can give very good results if used correctly. Vector images are more detailed when it comes to stretching the images as they only require the same amount of pixels in the image whilst a raster image will have the pixels stretched out making the pixels be shown or more sightly whilst a vector image will look the same throughout the image regardless of stretch as there are little pixels and they are on the outside of a lets say square image while a raster image has many pixels inside the square.Flash games use this type of pixels for games to get maximum quality for minimum effect since they require other uses with games whilst a image Will remain still.
Bit depth is a major knowledge required in the games industry and in any photo online since it will require the code and numbers that are mixed during the image palette that the file requires and it uses the numbers to help give a coding of the many colours required or available for better precision for the image itself. http://computer.yourdictionary.com/images/computer/PIXMAP.GIF
This example here shows the different numbers and the way they code to show the different colours using the 3 primary colours in a 24 bit display. Gifs however use this table but with less precisions since they are 8 bit colour sand have less probability and results compared to the 16.8million results from the 24 bit table shown above. With grey it shows black and white however the colour and shade of the grey is very dependant on the white and the black combined within the amount of 0's and 1's which means there are very different possibilities of grey due to the 8 rows on black and white which can give 256 unique colours which is alot of possibilities for the shades of grey available from the 8 bit grey scale.More in depth images such as jpeg require alot more different colours and from the 3 primary colours on a 24 bit scale it provides 16.8 million different colours that are possible to use in the picture and each one giving a precision to the photo itself. http://c3.ac-images.myspacecdn.com/images01/113/l_eb2f70fa135480b3f626359cd74661ce.jpg
As this picture shows it is very colourful and has different types of colours everywhere which are needed by the 3 primary colours and the different shades and combinations provided in the colour table to produce a very vibrant and spread out colours to help the viewer see better detail on the images of characters, models or whatever maybe in the photo. All colour pixels are made and produced by a production of numbers of 0's and 1's combined so that they maybe look the same colour but they are different codes and shades but highly unrecognisable. http://aviadklein.files.wordpress.com/2010/05/color_pallete1.jpeg
This palette of colours helps to show the different array of colours and the possibilities however this palette of colours is still very small compared to the 16.8million colours but it is very hard to create a table with 16.8 million colours as it would be extremely large.As the main primary colours are red green and blue they are considered to be the source channels of colours within the colour dictionary as they combine with each other or black and white in order to produce any possible colour that is available and the depth of the colours make the possibilities so large that it is impossible to know all the different types of colours in the world.
Most colour images that are produced from digital cameras are made by 8 bits per channel in the source which means that they can use a total of 8 0's or 1's within that channel creating a possibility of 256 different choices or 28 choices been the minimum for every single primary colour and with there been 3 primary colours and not including the primary colours mixing with one and other it can create a lot more possibilities and give a better intensity for every primary colour available.
The colour range in the digital graphics is usually 24 bit colour which allows the user to see the colours in a huge variety. when using true colour and the RDG colour in 24 bit colour channel it is possible to make 16.8 million different colour combinations. There is a index colour range that is provided with this also to allow the user to compress files to use less space than they would usually be for but for the exact same good detail which means that it prevents the file size been too big for games or for saving file sizes to save space.
As this picture shows it gives in detail the different file sizes for the same photo and allows you to save the photo at the best quality for the minimum space needed. This allows the best quality and saves space so less detail and lag made by the photo if it was used elsewhere like in a slide or movie. This can be used for image capture as well since it involves the file size.
Image optimisation allows you to see the different quality shown from a computer and from the printer and or scanner.Websites use the detail of 300 Dpi to show maximum effects of links and advertisements. http://www.vfestival.com/
This is a example of a 300 Dpi website since the detail of the picture is extremely detailed and shows a broad amount of colours which if shown by printers detail of 72 Dpi will be lower shine and less detail compared to the website and the websites display. This type of colouring allows the advertisements of events or festivals in this case to be shown and it usually shows a click here to go to the website to buy the tickets. the image formats are usually saved in jpeg if in very high detail and in bitmaps if they are less detailed and more cartoon look as jpeg images cannot take bitmap images very well and find them very complex which means that they would require more space on the computer. A 300Dpi printer are used so that leaflets are printed off with extremely good detail to give the viewers attention. This is Relevant to a ezine if you want a flashy image in the ezine and it helps give the ezine a better idea if they are seperated into two links so that way the ezine is not too cluttered with just text and making it unappealing.
Bitmap pictures are shown in video games that require flash and vectors whilst jpeg files are used in movies and more detailed concept art and more detailed games and movies. This is so that easy to play games on the Internet do not lag or be unable to play online for those who cannot afford consoles or PC games and want to play some easy games for little quality but maximum effect to The players entertainment. While a jpeg image and detail of a game may look more impressive than a bitmap it is the quality and amount of pixels which will make the game very big which means long loading time or very lagged when played.
Image capture
the many different methods of image capture are such as three shot colour sampling which are used to show the three different colours within the tv like this example on http://www.spectraservices.com/Merchant2/images/3shotcm_figure1.jpg
using this method allows a better improvement of the picture and tis size without the lack of detail ruined by it. it also prevents the space of the image and the file size from being too large to handle for normal computers or cameras allowing the import to be relitivaly easy. the improvements three shot colour allows less blue on microscopic images such as this one by http://www.spectraservices.com/Merchant2/images/3shot_figure6.jpg
As you tell from the left image compared to the right image it is very blurry and hard to read the numbers whilst on the right image it is clear and understandable which means that it is saving space for the computer and the work or more clearer to understand.
Imaging micron 200 holes is another method of image capture that is used and this method is used by industry for extremely microscopic holes within the components of machines or steel and this is used in a variety orf methods in industry. the first example of showing this methd is a picture by http://media.wiley.com/wires/WNAN/WNAN123/nfig003.jpg
as the picture shows on the left it is very detailed and smooth and shows the hole been created in a metal whilst the right picture looks very messy and is very hard to distinguish what it is. another use of this image capture is when Jeremy Clarkson on top gear quoted that the Nissan Gtr was put into a secret lab so that the engine when ti was been built doesn't microscopically expand and so they must have sued this image device in order to track the building process of the engine in order to make sure that the engine is built correctly.
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