PIXCEL CENTRE-TYPES OF IMAGE FILES

 

        File format to represent the digital images

Two Types

1. Raster Image File Format

• It is constructed by using a series of pixels from an image
• Ex. JPEG(Joint Photographic Expert Group)
• 8 bits
• It is most widely used lossy compression format
• uses can specify the levels of compression
• PNG(Portable Network Graphics)
• 8 bit or 24 bit
• Lossless Image Format
• Sharper web quality Image 
•  GIF(Graphics Interchange Format)
• 24 bits
• Lossless Image Format
• Support bot animated and static images
• Used for webpage ads
• Resizing the image is not possible
• Resolution dependent
• Larger in File Size
• Quicker to display  

2. Vector Image Format

• It is constructed using proportional Formulas
• Ex. PSD(Photoshop Document)
• Ex. EPS(Encapsulate Post Script)
• Ex. PDF(Portable Document Format)
• Resizing is possible
• Resolution Independent
• Smaller in size
• Slower to quickly