Difference between revisions of "Significant characteristics of raster images"

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[[Main Page]] > [[Documentation]] > [[Media type preservation plans]] > [[Significant properties]] > Significant properties of raster images
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[[Main Page]] > [[Documentation]] > [[Format policies]] > [[Significant characteristics]] > Significant characteristics of raster images
  
  
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This table lists properties and components taken from Florida Digital Archive Action plan, TIFF 6.0 (http://www.fcla.edu/digitalArchive/formatInfo.htm), with additional notes:  
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This table lists properties and components taken from Florida Digital Archive Action plan, TIFF 6.0 (http://actionplan.fcla.edu/), with additional notes:  
  
  
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|samples per pixel
 
|samples per pixel
 
|appearance
 
|appearance
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|Typically 1 for bilevel, grayscale and palette-colour images; typically 3 for RGB images.
 
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|bits per sample
 
|bits per sample
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|extra samples
 
|extra samples
 
|appearance
 
|appearance
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|"SamplesPerPixel is usually 1 for bilevel, grayscale, and palette-color images. SamplesPerPixel is usually 3 for RGB images. If this value is higher, ExtraSamples should give an indication of the meaning of the additional channels." http://www.awaresystems.be/imaging/tiff/tifftags/samplesperpixel.html
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|If samples per pixel is higher than 3 the number of extra samples is recorded in this field
 
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Revision as of 19:11, 13 February 2013

Main Page > Documentation > Format policies > Significant characteristics > Significant characteristics of raster images


This table lists properties and components taken from Florida Digital Archive Action plan, TIFF 6.0 (http://actionplan.fcla.edu/), with additional notes:


property value component notes
image width content measured in number of pixels
image height content measured in number of pixels
sequence of images structure If a TIFF file contains multiple images, the sequence of the images in the TIFF file will be preserved (Florida Digital Archive Action plan, TIFF 6.0)
X sampling frequency appearance may be expressed as X resolution
Y sampling frequency appearance may be expressed as Y resolution
samples per pixel appearance Typically 1 for bilevel, grayscale and palette-colour images; typically 3 for RGB images.
bits per sample appearance
extra samples appearance If samples per pixel is higher than 3 the number of extra samples is recorded in this field
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