Issue with ChangeContrast and ChangeBrightness
Posted: Thu Apr 06, 2017 1:06 pm
Hello,
we are currently evaluating your product to use it in out image acquisition application. As part of the evaluation we were trying to use the AcquiredImage ChangeContrast and ChangeBrightness methods and the results are not the expected ones.
If we do a loop calling any of the two methods with positive and negative values (+20 , -20 for example) we end up with a black or white image, we expected to have always the same image as -20 should leave the original image after doing a +20. Looks like the process is somehow 'destructive'.
Is this normal or are we missunderstanding something?
Regards.
we are currently evaluating your product to use it in out image acquisition application. As part of the evaluation we were trying to use the AcquiredImage ChangeContrast and ChangeBrightness methods and the results are not the expected ones.
If we do a loop calling any of the two methods with positive and negative values (+20 , -20 for example) we end up with a black or white image, we expected to have always the same image as -20 should leave the original image after doing a +20. Looks like the process is somehow 'destructive'.
Is this normal or are we missunderstanding something?
Regards.