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 HistEqualize vs blackvalue /whitevalue

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T O P I C    R E V I E W
JanSteevens Posted - Nov 26 2014 : 03:34:48
First of all: the ImageEn library is close to a miracle for my application. But with even the most wonderful product the user always looks upon it as the start of something even nicer.

I am using RenderToTIEBitmapEx(ImageEnView1.IEBitmap, ..) to build up an image by replacing blocks of lines, like a scanner. The blocks inserted are copied from the clip board.

Applying black/white changes via .IEBitmap.blackvalue / .whitevalue changes the images as expected -as does AutoImageEnhance1- while applying .Proc.HistEqualize (to a selection as wel as the entire image) gives unexpected results: the image built up until that time turns white (the color of the image in which the new blocks are inserted).

Otherwise Histequalize works perfect (as soon as updating the image has stopped).

Reason I would like to use HistEqualize here is that this function can be applied to a selection of the image, while .blackvalue can not.

Any suggestions?

Jan Steevens


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xequte Posted - Nov 26 2014 : 22:10:38
Hi Jan

Would you mind sending us a very simple demo that illustrates the issue.


Nigel
Xequte Software
www.xequte.com
nigel@xequte.com