I want to know what would be the best method to enhance the contrast of the CT images. What are the best filters available in ITK? Is there any filter that uses a simple contrast stretching method?
There are several image filtering algorithms in
In particular, you might want to try the histogram equalization filter to enhance your CT images.
Here is an example that demonstrates how to use the adaptive histogram equalization filter
Hope this helps,
When a CT image is acquired its contrast is already optimized. You might enhance some features (at the expense of suppressing others), but you can only do this for a specific clinical goal. What is your clinical application? What features you would like to enhance?