Difference between revisions of "Metadata"
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When acquiring images in microscopy, the image files that are stored contain two main things: | When acquiring images in microscopy, the image files that are stored contain two main things: | ||
| − | + | # ''image data'', which is essentially 'pixel values' | |
| − | + | # ''metadata'', information on the image data including pixel size, bit depth, dimension and objective information, etc. | |
Metadata is essential to correctly read image data; for example, to have accurate measurements, the image needs to be calibrated according to the correct/associated pixel size. Saving and preserving metadata is key in quantitative image analysis. | Metadata is essential to correctly read image data; for example, to have accurate measurements, the image needs to be calibrated according to the correct/associated pixel size. Saving and preserving metadata is key in quantitative image analysis. | ||
Revision as of 15:59, 16 July 2019
What is metadata?
When acquiring images in microscopy, the image files that are stored contain two main things:
- image data, which is essentially 'pixel values'
- metadata, information on the image data including pixel size, bit depth, dimension and objective information, etc.
Metadata is essential to correctly read image data; for example, to have accurate measurements, the image needs to be calibrated according to the correct/associated pixel size. Saving and preserving metadata is key in quantitative image analysis.
