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#1 Posted : Tuesday, September 22, 2009 7:41:18 AM(UTC)
seinarsson

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Posts: 22


I'm using LEADTOOLS .NET v16.5.

I see the command to do image subtraction (DigitalSubtractCommand)... is there one for doing image division?
 

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#2 Posted : Thursday, September 24, 2009 5:43:13 AM(UTC)
Maen Hasan

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If you mean that you want to combine two images and divide the destination image by the source, or divide the source by the destination, you can use the Leadtools.ImageProcessing.Effects.CombineCommand with the CombineCommandFlags.OperationDivideSource or CombineCommandFlags.OperationDivideDestination Flags.
For more information, please read the help topics "CombineCommand Class" and "CombineCommandFlags Enumeration" in the LEADTOOLS .Net documentation.
 
Thanks,
Maen Badwan
LEADTOOLS Technical Support
 
#3 Posted : Friday, September 25, 2009 11:48:56 AM(UTC)
seinarsson

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Posts: 22


That sounds like exactly what I want to do, but I'm a little confused as to what flags I need to set.

I'm working with 16-bit grayscale images taken from a medical xray machine.

I have a RAW anatomy image taken of a patient's knee. I have a RAW control image, taken for flat field correction.

I need to divide [anatomy / control]. Here is the current code that doesn't look like it's working quite like I want...

CombineCommand cc = new CombineCommand();
cc.SourceImage = controlImage;
cc.DestinationRectangle = new Rectangle(0, 0, anatomyImage.Width, anatomyImage.Height);
cc.Flags = CombineCommandFlags.OperationDivideDestination;
cc.Run(anatomyImage);
return anatomyImage;

Which one of these should be set to the Source image? Which flags should be set? i assume the image I run the function on acts as the destination image?
 
#4 Posted : Sunday, September 27, 2009 3:10:18 AM(UTC)
Maen Hasan

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The OperationDivideDestination    flag will divide the source by the destination.
This means your code will divide controlImage/anatomyImage and store the result in anatomyImage.

This means you either swap the source and destination images, or change the flag to OperationDivideSource.

Thanks,
Maen Badwan
LEADTOOLS Technical Support
 
#5 Posted : Wednesday, September 30, 2009 4:35:40 AM(UTC)
seinarsson

Groups: Registered
Posts: 22


This worked, thanks!
 
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