| Version 8 (modified by , 14 years ago) ( diff ) |
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Histogram Operations
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| Example of a histogram match using USGS DOQs. The image on the left is a composite of 4 different DOQs. Each DOQ has a different radiometry. The image on the right is the output from histogram match. |
OSSIM provides histogram-based color enhancement options to change the output of your data based on a histogram file. Histogram operations include:
- Auto Automatically adjust the histogram based on the min and max histogram values.
- Match Automatically adjust the histogram to match another image.
- Linear Linear contrast stretch using a standard deviation from the mean (e.g. 1, 2, or 3) or a user defined min/max value.
Note that histogram operation operations require an input image and a corresponding histogram file ("*.his"). The histogram file can be generated using ossim-create-histo or ossim-img2rr.
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- histogram_match.jpg (56.8 KB ) - added by 14 years ago.
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