color dropout

Questions, comments and suggestions concerning VintaSoft Imaging .NET SDK.

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ltdeta
Posts: 9
Joined: Tue Jul 05, 2011 8:57 pm

color dropout

Post by ltdeta » Tue Jul 05, 2011 9:01 pm

Does VintaSoftImaging has this function

this means:
The removal of a specific color from a scanned image. Typically used for preprinted forms, so that the form itself does not appear in the scanned image, leaving only the information filled in by the user. This increases OCR effectiveness, and decreases data storage and bandwidth requirements.

Alex
Site Admin
Posts: 1462
Joined: Thu Jul 10, 2008 2:21 pm

Re: color dropout

Post by Alex » Wed Jul 06, 2011 9:33 am

Hello,

You can use the Vintasoft.Imaging.ImageProcessing.Color.ColorBlendCommand if you want to dropout the color from the image.

Here is an example how to dropout red color from the image:

Code: Select all

ColorBlendCommand command = new ColorBlendCommand(BlendingMode.Darken, Color.FromArgb(0, 255, 255));
command.ExecuteInPlace(image);
Best regards, Alexander

ltdeta
Posts: 9
Joined: Tue Jul 05, 2011 8:57 pm

Re: color dropout

Post by ltdeta » Wed Jul 06, 2011 10:13 am

Thank you for the answer.

i use the demo version and do this
Image

but know i would change red with white color

this is the original picture
Image

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