Download as PDF, PPTX
Uploaded byAmol Gaikwad
Computer Graphics - Graphics File Formats.pdf
The document outlines various graphics file formats used for storing images and graphics, including bitmap (BMP), GIF, JPEG, PNG, TIFF, PCX, RAW, EPS, and SVG. Each format has distinct characteristics, advantages, and disadvantages, such as the type of compression used and the quality of images produced. It emphasizes the importance of choosing the right file format based on the intended use, such as web graphics, high-quality printing, or animations.
More Related Content
Similar to Computer Graphics - Graphics File Formats.pdf
Computer Graphics - Graphics File Formats.pdf
- 1. Computer Graphics Graphics FileFormats Graphics File Formats - Amol S. Gaikwad Lecturer Government Polytechnic Gadchiroli
- 2. Graphics File Formats •Graphics files are those files that stores data about images, pictures and graphics. • The information stored in these files can be understood, processed and displayed by various software. • There are different types of graphics file formats like – • There are different types of graphics file formats like – jpeg, gif, tiff, bmp. • These files stores data in different formats • Software will read data from these files and then display the images. • Software can also perform various operations on these files like editing, resizing.
- 3. Graphics File Formats •Types of Graphics File Formats Bitmap/Raster Images (Draws images using pixels) Vector images (Draws images using mathematical formulas) (Draws images using pixels) mathematical formulas) BMP GIF JPEG PNG TIF EPS SVG
- 4. BMP (bitmap) • Bitmapfile format was developed by Microsoft for windows operating system. • Bitmap files stores information about each and every pixel in the row such its color. • These images are device independent means can • These images are device independent means can be used on any computer. • Data in BMP files is uncompressed, it can also contain compressed data. • Images in BMP files are made up of pixels hence they are also called as raster images
- 5. BMP (bitmap) • BMPimage files are have .bmp extension. • BMP files are used for high quality digital photographs, real world photographs and high quality printing. quality printing. • Each pixel in BMP files requires 3 bytes where one byte each for red, green and blue color parts.
- 6. BMP (bitmap) • Advantages:- - Information is not loss in BMP files. - Images are of high quality. - Various web browsers like Chrome, Edge, - Various web browsers like Chrome, Edge, Firefox, Opera, and Safari can use bmp images. • Disadvantages :- - Requires large amount of computer memory for storage.
- 7. GIF (Graphics InterchangeFormat) • GIF images uses only 256 colors, hence are used for showing images on websites (web graphics). • GIF files can also create animated images as a single file can contain many different frames these frames are shown with some time delay creating animation effect. shown with some time delay creating animation effect. • GIF images have transparent background. • GIF uses data compression, it means saving the image data in less storage space than actually needed. • GIF uses compression without loss of data hence it is also called as lossless compression.
- 8. GIF (Graphics InterchangeFormat) • GIF files have .gif extension. Fig : GIF image
- 9. GIF (Graphics InterchangeFormat) • Advantages - GIF files are small in size (requires less computer memory). - GIF files are portable - GIF files are portable • Disadvantages - GIF images are not of high quality.
- 10. JPEG (Joint PhotographicExperts Group) • This format was developed by Joint Photographic Experts Group in 1990. • Images are compressed in this format. • Due compression some data gets lost hence it is also called as lossy compression. also called as lossy compression. • This is a very commonly used format. • It is used in digital cameras, microsoft office, social media, e-mail and on web. • Due to small size of JPEG images they can be downloaded fast from the web.
- 11. JPEG (Joint PhotographicExperts Group) • In each JPEG each pixel is described by red, blue and green parts. • Each of these colors requires 8 bits for information, total bits require is 24. information, total bits require is 24. • JPEG files have .jpeg, .jpg, .jpe, .jif, .jfif file extension.
- 12. JPEG (Joint PhotographicExperts Group) • Advantages - JPEG files requires less computer memory for storage. - All most all web browsers can display JPEG files. - All most all web browsers can display JPEG files. • Disadvantages - Due to loss of data in compression image quality is decreased. - More compression less clear is the image. - Editing JPEG multiple times reduces its quality.
- 13. PNG (Portable NetworkGraphics) • PNG was developed by World Wide Web Consortium (W3C). • PNG files uses compression but it does not lose data, hence it is also called as lossless data, hence it is also called as lossless compression. • We can edit the PNG files many times without loss of quality. • PNG uses total 24 bits per pixel for red, blue and green colors, providing large color options.
- 14. PNG (Portable NetworkGraphics) • PNG supports transparency, it means we can easily save colorful PNG images on transparent background. • PNG files have .png extension. • PNG files have .png extension. • It is used for scanning texts, creating graphics, logos, on social media and web.
- 15. PNG (Portable NetworkGraphics) • Advantages - PNG uses lossless data compression. - We can use large number of colors. - PNG files are portable, means they can be transferred on any computer and does not depend on any on any computer and does not depend on any particular hardware and software. • Disadvantages - As PNG uses lossless data compression file size is large. - Cannot create animation with it.
- 16. TIFF/TIF (Tagged ImageFile Format) • It was developed by Microsoft in 1986. • TIFF files don’t use compression hence there is no loss of data or information. • TIFF are used for high quality images and • TIFF are used for high quality images and printing, professional publications. • They are also used for transferring very high quality images. • TIFF files have .tif or .tiff extensions.
- 17. TIFF/TIF (Tagged ImageFile Format) • Advantages - Create very high quality images • Disadvantages - File size is large (requires more computer - File size is large (requires more computer memory for storage). - Not suitable for web graphics.
- 18. PCX (Picture Exchange) •PCX files are raster images files means they are made up of pixels. • This format was developed by ZSoft in 1980. • It is used for creating logos, digital photos, web graphics. graphics. • PCX files have .pcx extension. • It supports 24 bit red, green, blue color images. • It uses lossless data compression, quality and data are not lost when files are shared or compressed.
- 19. PCX (Picture Exchange) •Advantages - Images are of good quality. • Disadvantages - PCX files are not portable, different devices - PCX files are not portable, different devices and software may not work with these files.
- 20. RAW (Raw ImageFormats) • When we take a photo from camera or scanner, these images are stored in RAW formats. • RAW images do not process or compress the image data, they save the image as it is. • RAW images can be converted to other files types • RAW images can be converted to other files types like JPEG using professional software. • RAW file size is large as it stores all the information of the image. • RAW image files have .raw, ,.nef, .orf, .sr2, .cr2 file extensions.
- 21. EPS (Encapsulated Postscript) •Adobe developed EPS files format in 1987 • EPS is a vector file format. • Vector images uses mathematical formulas to draw an image. draw an image. • Vector don’t draw images as pixels. • EPS files can be opened using software like InDesigner, Adobe Illustrator,CoralDRAW. • EPS files have .eps extension.
- 22. SVG (Scalable VectorGraphics) • SVG is vector file format developed by World Wide Web Consortium(W3C) in 1999. • SVG files use XML based formatting, means they are written in XML. • As it is a vector based files it draws images using • As it is a vector based files it draws images using mathematical formulas. • SVG files are scalable means we can easily enlarge or reduce image without losing quality. • SVG is used for creating logos, icons. • SVG files have .svg extension.