STANDARDS OF GRAPHIC STANDARDS OF GRAPHIC DOCUMENTSDOCUMENTS

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Graphic DocumentsGraphic Documents

BitmapBitmap Vector Vector

Bitmap DocumentsBitmap Documents

PixelPixel Resolution e.g. 800x600 pixels, 3 Resolution e.g. 800x600 pixels, 3

MegapixelsMegapixels 4x3, 16x94x3, 16x9 Raster Raster

BMP (BitMaP)BMP (BitMaP)

DIB (Device Independent Bitmap)DIB (Device Independent Bitmap) No compressionNo compression No transparency (24-bit)No transparency (24-bit) 32-bit DIB alpha channel- XP logo32-bit DIB alpha channel- XP logo

JPEG (Joint Photographic JPEG (Joint Photographic Experts Group)Experts Group)

ISO 10918-1ISO 10918-1 Compression enabled format (levels)Compression enabled format (levels) 10:1 compresson with little loss10:1 compresson with little loss No transparency (24-bit)No transparency (24-bit) Best for smooth variation of tone and Best for smooth variation of tone and

colorscolors Not good for sharp contrastsNot good for sharp contrasts

GIF (Tagged Image File GIF (Tagged Image File Format)Format)

Compression enabled formatCompression enabled format 3:1 compresson lossless + LZW3:1 compresson lossless + LZW Best for sharp-edged line art: logos, Best for sharp-edged line art: logos,

simple imagessimple images Supports animationsSupports animations Can have only 256 colors in one Can have only 256 colors in one

imageimage Allows transparencyAllows transparency

PNG (Portable Network PNG (Portable Network Graphics)Graphics)

RFC 2083/ ISO/EC 15948:2004RFC 2083/ ISO/EC 15948:2004 Compression enabled format- lossless Compression enabled format- lossless

DeflateDeflate True color and alpha transparencyTrue color and alpha transparency Best for sharp-edged line art: logos, simple Best for sharp-edged line art: logos, simple

imagesimages Faster interlacing than GIFFaster interlacing than GIF Does not support animationsDoes not support animations

TIFF (TIFF (Tagged Image File Tagged Image File FormatFormat ))

Allows handling images and data in a Allows handling images and data in a single file (size, image-data arrangement, single file (size, image-data arrangement, applied compression), even jpeg, layers applied compression), even jpeg, layers and pagesand pages

Compression enabled format- lossless LZWCompression enabled format- lossless LZW Bought by Adobe in 2009Bought by Adobe in 2009 Limited to 4 GBLimited to 4 GB Custom taggingCustom tagging

RAWRAW

Direct sensor readoutDirect sensor readout Myriad of RAW formatsMyriad of RAW formats DNG (Digital Negative) standards DNG (Digital Negative) standards

proposal by Adobeproposal by Adobe Metadata, Compression (lossless and Metadata, Compression (lossless and

lossy), sometimes encriptionlossy), sometimes encription Open source dcrawOpen source dcraw

Vector DocumentsVector Documents

Use mathematical equations to present Use mathematical equations to present datadata

Points, lines, curves, polygonsPoints, lines, curves, polygons Easier to manipulate withEasier to manipulate with Don’t „loose” quality in any resolutionDon’t „loose” quality in any resolution Grouping objectsGrouping objects Generally smaller size than bitmapGenerally smaller size than bitmap

SVG (Scalable Vector SVG (Scalable Vector Graphics)Graphics)

W3C open standardsW3C open standards Defined using XML taggingDefined using XML tagging Compatible with CSS specificationCompatible with CSS specification Compression gzip or otherCompression gzip or other http://upload.wikimedia.org/wikipedia/http://upload.wikimedia.org/wikipedia/

commons/6/6b/Bitmap_VS_SVG.svgcommons/6/6b/Bitmap_VS_SVG.svg

CDR (Corel Draw)CDR (Corel Draw)

Closed standardClosed standard Ever changingEver changing

Have fun!Have fun!