1.6 - GRAPHIC STANDARDS AND GRAPHIC FILE FORMATS



 Graphic standards and Graphical file format;

                        There are a number of different types of graphics file format .Each type stores graphic data in a different way .Bitmap ,vector and metafile formats are by far the most commonly used formats and we focus on these.

     However there are other types of formats as well as scene ,animation ,multimedia, hybrid , hypertext ,hypermedia ,3D, virtual modelling ,reality language (vrml) etc .

1.Bitmap Formats:

           Bitmap formats are used to store bitmap data files of this types are particularly well-switched for the storage of real world images such as photographs and video images .Bitmap files sometimes called raster files essentially contain an exact pixel by pixel map of an image 

2.Vector formats:

        Vector formats files are particularly used for storing line -based elements ,such as lines and polygons ,or those that can be decomposed into simple geometric objects such as text vector files contains mathematical  descriptions of image elements ,rather than pixel values.

3.Metafile Formats:

         Metafiles can contain both bitmap and vector data in a single file. Metafile are frequently used to  transport bitmap or vector data between hardware platforms or to more image data between software platforms 

4.Scene Formats :

        Scene formats files are designed to store a condensed representation of an image or representation of an image or scene ,which is used by a program  to reconstruct the actual image. 

5:Animation Formats:

       Animation formats have been around for some time .Very primitive animation format store entire images that are displayed in a sequence ,usually in a loop. Advanced animation format store only the differences between two adjacent images and update only the pixel that has actually changed as each frame is displayed.


No comments:

Post a Comment